mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-19 03:20:14 +00:00
f1f7cc870e
ADCE does not treat OpCopyMemory as an instruction that references memory. Because of that stores are removed that should not be. This change teaches ADCE that OpCopyMemory and OpCopyMemorySize both loads from and stores to memory. This will keep other stores live when needed, and will allows ADCE to remove OpCopyMemory instructions as well. Fixes https://github.com/KhronosGroup/SPIRV-Tools/issues/1556.
5775 lines
170 KiB
C++
5775 lines
170 KiB
C++
// Copyright (c) 2017 Valve Corporation
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// Copyright (c) 2017 LunarG Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "assembly_builder.h"
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#include "pass_fixture.h"
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#include "pass_utils.h"
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namespace {
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using namespace spvtools;
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using AggressiveDCETest = PassTest<::testing::Test>;
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TEST_F(AggressiveDCETest, EliminateExtendedInst) {
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// #version 140
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//
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// in vec4 BaseColor;
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// in vec4 Dead;
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//
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// void main()
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// {
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// vec4 v = BaseColor;
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// vec4 dv = sqrt(Dead);
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// gl_FragColor = v;
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// }
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const std::string predefs1 =
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R"(OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main" %BaseColor %Dead %gl_FragColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 140
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)";
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const std::string names_before =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %dv "dv"
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OpName %Dead "Dead"
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OpName %gl_FragColor "gl_FragColor"
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)";
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const std::string names_after =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %Dead "Dead"
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OpName %gl_FragColor "gl_FragColor"
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)";
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const std::string predefs2 =
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R"(%void = OpTypeVoid
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%9 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%Dead = OpVariable %_ptr_Input_v4float Input
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%gl_FragColor = OpVariable %_ptr_Output_v4float Output
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)";
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const std::string func_before =
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R"(%main = OpFunction %void None %9
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%15 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%dv = OpVariable %_ptr_Function_v4float Function
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%16 = OpLoad %v4float %BaseColor
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OpStore %v %16
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%17 = OpLoad %v4float %Dead
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%18 = OpExtInst %v4float %1 Sqrt %17
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OpStore %dv %18
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%19 = OpLoad %v4float %v
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OpStore %gl_FragColor %19
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OpReturn
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OpFunctionEnd
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)";
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const std::string func_after =
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R"(%main = OpFunction %void None %9
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%15 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%16 = OpLoad %v4float %BaseColor
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OpStore %v %16
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%19 = OpLoad %v4float %v
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OpStore %gl_FragColor %19
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::AggressiveDCEPass>(
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predefs1 + names_before + predefs2 + func_before,
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predefs1 + names_after + predefs2 + func_after, true, true);
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}
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TEST_F(AggressiveDCETest, NoEliminateFrexp) {
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// Note: SPIR-V hand-edited to utilize Frexp
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//
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// #version 450
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//
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// in vec4 BaseColor;
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// in vec4 Dead;
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// out vec4 Color;
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// out ivec4 iv2;
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//
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// void main()
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// {
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// vec4 v = BaseColor;
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// vec4 dv = frexp(Dead, iv2);
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// Color = v;
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// }
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const std::string predefs1 =
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R"(OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main" %BaseColor %Dead %iv2 %Color
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 450
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)";
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const std::string names_before =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %dv "dv"
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OpName %Dead "Dead"
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OpName %iv2 "iv2"
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OpName %ResType "ResType"
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OpName %Color "Color"
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)";
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const std::string names_after =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %Dead "Dead"
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OpName %iv2 "iv2"
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OpName %Color "Color"
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)";
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const std::string predefs2_before =
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R"(%void = OpTypeVoid
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%11 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%Dead = OpVariable %_ptr_Input_v4float Input
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%int = OpTypeInt 32 1
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%v4int = OpTypeVector %int 4
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%_ptr_Output_v4int = OpTypePointer Output %v4int
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%iv2 = OpVariable %_ptr_Output_v4int Output
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%ResType = OpTypeStruct %v4float %v4int
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%Color = OpVariable %_ptr_Output_v4float Output
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)";
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const std::string predefs2_after =
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R"(%void = OpTypeVoid
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%11 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%Dead = OpVariable %_ptr_Input_v4float Input
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%int = OpTypeInt 32 1
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%v4int = OpTypeVector %int 4
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%_ptr_Output_v4int = OpTypePointer Output %v4int
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%iv2 = OpVariable %_ptr_Output_v4int Output
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%Color = OpVariable %_ptr_Output_v4float Output
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)";
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const std::string func_before =
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R"(%main = OpFunction %void None %11
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%20 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%dv = OpVariable %_ptr_Function_v4float Function
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%21 = OpLoad %v4float %BaseColor
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OpStore %v %21
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%22 = OpLoad %v4float %Dead
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%23 = OpExtInst %v4float %1 Frexp %22 %iv2
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OpStore %dv %23
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%24 = OpLoad %v4float %v
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OpStore %Color %24
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OpReturn
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OpFunctionEnd
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)";
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const std::string func_after =
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R"(%main = OpFunction %void None %11
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%20 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%21 = OpLoad %v4float %BaseColor
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OpStore %v %21
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%22 = OpLoad %v4float %Dead
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%23 = OpExtInst %v4float %1 Frexp %22 %iv2
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%24 = OpLoad %v4float %v
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OpStore %Color %24
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::AggressiveDCEPass>(
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predefs1 + names_before + predefs2_before + func_before,
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predefs1 + names_after + predefs2_after + func_after, true, true);
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}
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TEST_F(AggressiveDCETest, EliminateDecorate) {
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// Note: The SPIR-V was hand-edited to add the OpDecorate
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//
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// #version 140
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//
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// in vec4 BaseColor;
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// in vec4 Dead;
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//
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// void main()
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// {
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// vec4 v = BaseColor;
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// vec4 dv = Dead * 0.5;
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// gl_FragColor = v;
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// }
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const std::string predefs1 =
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R"(OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main" %BaseColor %Dead %gl_FragColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 140
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)";
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const std::string names_before =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %dv "dv"
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OpName %Dead "Dead"
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OpName %gl_FragColor "gl_FragColor"
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OpDecorate %8 RelaxedPrecision
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)";
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const std::string names_after =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %Dead "Dead"
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OpName %gl_FragColor "gl_FragColor"
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)";
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const std::string predefs2_before =
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R"(%void = OpTypeVoid
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%10 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%Dead = OpVariable %_ptr_Input_v4float Input
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%float_0_5 = OpConstant %float 0.5
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%gl_FragColor = OpVariable %_ptr_Output_v4float Output
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)";
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const std::string predefs2_after =
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R"(%void = OpTypeVoid
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%10 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%Dead = OpVariable %_ptr_Input_v4float Input
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%gl_FragColor = OpVariable %_ptr_Output_v4float Output
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)";
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const std::string func_before =
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R"(%main = OpFunction %void None %10
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%17 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%dv = OpVariable %_ptr_Function_v4float Function
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%18 = OpLoad %v4float %BaseColor
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OpStore %v %18
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%19 = OpLoad %v4float %Dead
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%8 = OpVectorTimesScalar %v4float %19 %float_0_5
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OpStore %dv %8
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%20 = OpLoad %v4float %v
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OpStore %gl_FragColor %20
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OpReturn
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OpFunctionEnd
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)";
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const std::string func_after =
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R"(%main = OpFunction %void None %10
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%17 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%18 = OpLoad %v4float %BaseColor
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OpStore %v %18
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%20 = OpLoad %v4float %v
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OpStore %gl_FragColor %20
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::AggressiveDCEPass>(
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predefs1 + names_before + predefs2_before + func_before,
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predefs1 + names_after + predefs2_after + func_after, true, true);
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}
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TEST_F(AggressiveDCETest, Simple) {
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// #version 140
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//
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// in vec4 BaseColor;
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// in vec4 Dead;
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//
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// void main()
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// {
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// vec4 v = BaseColor;
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// vec4 dv = Dead;
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// gl_FragColor = v;
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// }
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const std::string predefs1 =
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R"(OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main" %BaseColor %Dead %gl_FragColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 140
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)";
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const std::string names_before =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %dv "dv"
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OpName %Dead "Dead"
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OpName %gl_FragColor "gl_FragColor"
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)";
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const std::string names_after =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %Dead "Dead"
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OpName %gl_FragColor "gl_FragColor"
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)";
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const std::string predefs2 =
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R"(%void = OpTypeVoid
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%9 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%Dead = OpVariable %_ptr_Input_v4float Input
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%gl_FragColor = OpVariable %_ptr_Output_v4float Output
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)";
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const std::string func_before =
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R"(%main = OpFunction %void None %9
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%15 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%dv = OpVariable %_ptr_Function_v4float Function
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%16 = OpLoad %v4float %BaseColor
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OpStore %v %16
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%17 = OpLoad %v4float %Dead
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OpStore %dv %17
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%18 = OpLoad %v4float %v
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OpStore %gl_FragColor %18
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OpReturn
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OpFunctionEnd
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)";
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const std::string func_after =
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R"(%main = OpFunction %void None %9
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%15 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%16 = OpLoad %v4float %BaseColor
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OpStore %v %16
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%18 = OpLoad %v4float %v
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OpStore %gl_FragColor %18
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::AggressiveDCEPass>(
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predefs1 + names_before + predefs2 + func_before,
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predefs1 + names_after + predefs2 + func_after, true, true);
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}
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TEST_F(AggressiveDCETest, OptWhitelistExtension) {
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// #version 140
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//
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// in vec4 BaseColor;
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// in vec4 Dead;
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//
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// void main()
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// {
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// vec4 v = BaseColor;
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// vec4 dv = Dead;
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// gl_FragColor = v;
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// }
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const std::string predefs1 =
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R"(OpCapability Shader
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OpExtension "SPV_AMD_gpu_shader_int16"
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main" %BaseColor %Dead %gl_FragColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 140
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)";
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const std::string names_before =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %dv "dv"
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OpName %Dead "Dead"
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OpName %gl_FragColor "gl_FragColor"
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)";
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const std::string names_after =
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R"(OpName %main "main"
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OpName %v "v"
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OpName %BaseColor "BaseColor"
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OpName %Dead "Dead"
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OpName %gl_FragColor "gl_FragColor"
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)";
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const std::string predefs2 =
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R"(%void = OpTypeVoid
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%9 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%Dead = OpVariable %_ptr_Input_v4float Input
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%gl_FragColor = OpVariable %_ptr_Output_v4float Output
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)";
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const std::string func_before =
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R"(%main = OpFunction %void None %9
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%15 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%dv = OpVariable %_ptr_Function_v4float Function
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%16 = OpLoad %v4float %BaseColor
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OpStore %v %16
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%17 = OpLoad %v4float %Dead
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OpStore %dv %17
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%18 = OpLoad %v4float %v
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OpStore %gl_FragColor %18
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OpReturn
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OpFunctionEnd
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)";
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const std::string func_after =
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R"(%main = OpFunction %void None %9
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%15 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%16 = OpLoad %v4float %BaseColor
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OpStore %v %16
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%18 = OpLoad %v4float %v
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OpStore %gl_FragColor %18
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::AggressiveDCEPass>(
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predefs1 + names_before + predefs2 + func_before,
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predefs1 + names_after + predefs2 + func_after, true, true);
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}
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|
|
TEST_F(AggressiveDCETest, NoOptBlacklistExtension) {
|
|
// #version 140
|
|
//
|
|
// in vec4 BaseColor;
|
|
// in vec4 Dead;
|
|
//
|
|
// void main()
|
|
// {
|
|
// vec4 v = BaseColor;
|
|
// vec4 dv = Dead;
|
|
// gl_FragColor = v;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
OpExtension "SPV_KHR_variable_pointers"
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %Dead %gl_FragColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %dv "dv"
|
|
OpName %Dead "Dead"
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
%void = OpTypeVoid
|
|
%9 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%Dead = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%gl_FragColor = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %9
|
|
%15 = OpLabel
|
|
%v = OpVariable %_ptr_Function_v4float Function
|
|
%dv = OpVariable %_ptr_Function_v4float Function
|
|
%16 = OpLoad %v4float %BaseColor
|
|
OpStore %v %16
|
|
%17 = OpLoad %v4float %Dead
|
|
OpStore %dv %17
|
|
%18 = OpLoad %v4float %v
|
|
OpStore %gl_FragColor %18
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, ElimWithCall) {
|
|
// This demonstrates that "dead" function calls are not eliminated.
|
|
// Also demonstrates that DCE will happen in presence of function call.
|
|
// #version 140
|
|
// in vec4 i1;
|
|
// in vec4 i2;
|
|
//
|
|
// void nothing(vec4 v)
|
|
// {
|
|
// }
|
|
//
|
|
// void main()
|
|
// {
|
|
// vec4 v1 = i1;
|
|
// vec4 v2 = i2;
|
|
// nothing(v1);
|
|
// gl_FragColor = vec4(0.0);
|
|
// }
|
|
|
|
const std::string defs_before =
|
|
R"( OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %i1 %i2 %gl_FragColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
OpName %main "main"
|
|
OpName %nothing_vf4_ "nothing(vf4;"
|
|
OpName %v "v"
|
|
OpName %v1 "v1"
|
|
OpName %i1 "i1"
|
|
OpName %v2 "v2"
|
|
OpName %i2 "i2"
|
|
OpName %param "param"
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
%void = OpTypeVoid
|
|
%12 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%16 = OpTypeFunction %void %_ptr_Function_v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%i1 = OpVariable %_ptr_Input_v4float Input
|
|
%i2 = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%gl_FragColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_0 = OpConstant %float 0
|
|
%20 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
|
|
)";
|
|
|
|
const std::string defs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %i1 %i2 %gl_FragColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
OpName %main "main"
|
|
OpName %nothing_vf4_ "nothing(vf4;"
|
|
OpName %v "v"
|
|
OpName %v1 "v1"
|
|
OpName %i1 "i1"
|
|
OpName %i2 "i2"
|
|
OpName %param "param"
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
%void = OpTypeVoid
|
|
%12 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%16 = OpTypeFunction %void %_ptr_Function_v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%i1 = OpVariable %_ptr_Input_v4float Input
|
|
%i2 = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%gl_FragColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_0 = OpConstant %float 0
|
|
%20 = OpConstantComposite %v4float %float_0 %float_0 %float_0 %float_0
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %12
|
|
%21 = OpLabel
|
|
%v1 = OpVariable %_ptr_Function_v4float Function
|
|
%v2 = OpVariable %_ptr_Function_v4float Function
|
|
%param = OpVariable %_ptr_Function_v4float Function
|
|
%22 = OpLoad %v4float %i1
|
|
OpStore %v1 %22
|
|
%23 = OpLoad %v4float %i2
|
|
OpStore %v2 %23
|
|
%24 = OpLoad %v4float %v1
|
|
OpStore %param %24
|
|
%25 = OpFunctionCall %void %nothing_vf4_ %param
|
|
OpStore %gl_FragColor %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%nothing_vf4_ = OpFunction %void None %16
|
|
%v = OpFunctionParameter %_ptr_Function_v4float
|
|
%26 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %12
|
|
%21 = OpLabel
|
|
%v1 = OpVariable %_ptr_Function_v4float Function
|
|
%param = OpVariable %_ptr_Function_v4float Function
|
|
%22 = OpLoad %v4float %i1
|
|
OpStore %v1 %22
|
|
%24 = OpLoad %v4float %v1
|
|
OpStore %param %24
|
|
%25 = OpFunctionCall %void %nothing_vf4_ %param
|
|
OpStore %gl_FragColor %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%nothing_vf4_ = OpFunction %void None %16
|
|
%v = OpFunctionParameter %_ptr_Function_v4float
|
|
%26 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
defs_before + func_before, defs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoParamElim) {
|
|
// This demonstrates that unused parameters are not eliminated, but
|
|
// dead uses of them are.
|
|
// #version 140
|
|
//
|
|
// in vec4 BaseColor;
|
|
//
|
|
// vec4 foo(vec4 v1, vec4 v2)
|
|
// {
|
|
// vec4 t = -v1;
|
|
// return v2;
|
|
// }
|
|
//
|
|
// void main()
|
|
// {
|
|
// vec4 dead;
|
|
// gl_FragColor = foo(dead, BaseColor);
|
|
// }
|
|
|
|
const std::string defs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %gl_FragColor %BaseColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
OpName %main "main"
|
|
OpName %foo_vf4_vf4_ "foo(vf4;vf4;"
|
|
OpName %v1 "v1"
|
|
OpName %v2 "v2"
|
|
OpName %t "t"
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
OpName %dead "dead"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %param "param"
|
|
OpName %param_0 "param"
|
|
%void = OpTypeVoid
|
|
%13 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%17 = OpTypeFunction %v4float %_ptr_Function_v4float %_ptr_Function_v4float
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%gl_FragColor = OpVariable %_ptr_Output_v4float Output
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%main = OpFunction %void None %13
|
|
%20 = OpLabel
|
|
%dead = OpVariable %_ptr_Function_v4float Function
|
|
%param = OpVariable %_ptr_Function_v4float Function
|
|
%param_0 = OpVariable %_ptr_Function_v4float Function
|
|
%21 = OpLoad %v4float %dead
|
|
OpStore %param %21
|
|
%22 = OpLoad %v4float %BaseColor
|
|
OpStore %param_0 %22
|
|
%23 = OpFunctionCall %v4float %foo_vf4_vf4_ %param %param_0
|
|
OpStore %gl_FragColor %23
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string defs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %gl_FragColor %BaseColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
OpName %main "main"
|
|
OpName %foo_vf4_vf4_ "foo(vf4;vf4;"
|
|
OpName %v1 "v1"
|
|
OpName %v2 "v2"
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
OpName %dead "dead"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %param "param"
|
|
OpName %param_0 "param"
|
|
%void = OpTypeVoid
|
|
%13 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%17 = OpTypeFunction %v4float %_ptr_Function_v4float %_ptr_Function_v4float
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%gl_FragColor = OpVariable %_ptr_Output_v4float Output
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%main = OpFunction %void None %13
|
|
%20 = OpLabel
|
|
%dead = OpVariable %_ptr_Function_v4float Function
|
|
%param = OpVariable %_ptr_Function_v4float Function
|
|
%param_0 = OpVariable %_ptr_Function_v4float Function
|
|
%21 = OpLoad %v4float %dead
|
|
OpStore %param %21
|
|
%22 = OpLoad %v4float %BaseColor
|
|
OpStore %param_0 %22
|
|
%23 = OpFunctionCall %v4float %foo_vf4_vf4_ %param %param_0
|
|
OpStore %gl_FragColor %23
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%foo_vf4_vf4_ = OpFunction %v4float None %17
|
|
%v1 = OpFunctionParameter %_ptr_Function_v4float
|
|
%v2 = OpFunctionParameter %_ptr_Function_v4float
|
|
%24 = OpLabel
|
|
%t = OpVariable %_ptr_Function_v4float Function
|
|
%25 = OpLoad %v4float %v1
|
|
%26 = OpFNegate %v4float %25
|
|
OpStore %t %26
|
|
%27 = OpLoad %v4float %v2
|
|
OpReturnValue %27
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%foo_vf4_vf4_ = OpFunction %v4float None %17
|
|
%v1 = OpFunctionParameter %_ptr_Function_v4float
|
|
%v2 = OpFunctionParameter %_ptr_Function_v4float
|
|
%24 = OpLabel
|
|
%27 = OpLoad %v4float %v2
|
|
OpReturnValue %27
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
defs_before + func_before, defs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, ElimOpaque) {
|
|
// SPIR-V not representable from GLSL; not generatable from HLSL
|
|
// for the moment.
|
|
|
|
const std::string defs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %outColor %texCoords
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
OpName %main "main"
|
|
OpName %S_t "S_t"
|
|
OpMemberName %S_t 0 "v0"
|
|
OpMemberName %S_t 1 "v1"
|
|
OpMemberName %S_t 2 "smp"
|
|
OpName %outColor "outColor"
|
|
OpName %sampler15 "sampler15"
|
|
OpName %s0 "s0"
|
|
OpName %texCoords "texCoords"
|
|
OpDecorate %sampler15 DescriptorSet 0
|
|
%void = OpTypeVoid
|
|
%9 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v2float = OpTypeVector %float 2
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%outColor = OpVariable %_ptr_Output_v4float Output
|
|
%14 = OpTypeImage %float 2D 0 0 0 1 Unknown
|
|
%15 = OpTypeSampledImage %14
|
|
%S_t = OpTypeStruct %v2float %v2float %15
|
|
%_ptr_Function_S_t = OpTypePointer Function %S_t
|
|
%17 = OpTypeFunction %void %_ptr_Function_S_t
|
|
%_ptr_UniformConstant_15 = OpTypePointer UniformConstant %15
|
|
%_ptr_Function_15 = OpTypePointer Function %15
|
|
%sampler15 = OpVariable %_ptr_UniformConstant_15 UniformConstant
|
|
%int = OpTypeInt 32 1
|
|
%int_0 = OpConstant %int 0
|
|
%int_2 = OpConstant %int 2
|
|
%_ptr_Function_v2float = OpTypePointer Function %v2float
|
|
%_ptr_Input_v2float = OpTypePointer Input %v2float
|
|
%texCoords = OpVariable %_ptr_Input_v2float Input
|
|
)";
|
|
|
|
const std::string defs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %outColor %texCoords
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
OpName %main "main"
|
|
OpName %outColor "outColor"
|
|
OpName %sampler15 "sampler15"
|
|
OpName %texCoords "texCoords"
|
|
OpDecorate %sampler15 DescriptorSet 0
|
|
%void = OpTypeVoid
|
|
%9 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v2float = OpTypeVector %float 2
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%outColor = OpVariable %_ptr_Output_v4float Output
|
|
%14 = OpTypeImage %float 2D 0 0 0 1 Unknown
|
|
%15 = OpTypeSampledImage %14
|
|
%_ptr_UniformConstant_15 = OpTypePointer UniformConstant %15
|
|
%sampler15 = OpVariable %_ptr_UniformConstant_15 UniformConstant
|
|
%_ptr_Input_v2float = OpTypePointer Input %v2float
|
|
%texCoords = OpVariable %_ptr_Input_v2float Input
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %9
|
|
%25 = OpLabel
|
|
%s0 = OpVariable %_ptr_Function_S_t Function
|
|
%26 = OpLoad %v2float %texCoords
|
|
%27 = OpLoad %S_t %s0
|
|
%28 = OpCompositeInsert %S_t %26 %27 0
|
|
%29 = OpLoad %15 %sampler15
|
|
%30 = OpCompositeInsert %S_t %29 %28 2
|
|
OpStore %s0 %30
|
|
%31 = OpImageSampleImplicitLod %v4float %29 %26
|
|
OpStore %outColor %31
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %9
|
|
%25 = OpLabel
|
|
%26 = OpLoad %v2float %texCoords
|
|
%29 = OpLoad %15 %sampler15
|
|
%31 = OpImageSampleImplicitLod %v4float %29 %26
|
|
OpStore %outColor %31
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
defs_before + func_before, defs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoParamStoreElim) {
|
|
// Should not eliminate stores to params
|
|
//
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void foo(in vec4 v1, out vec4 v2)
|
|
// {
|
|
// v2 = -v1;
|
|
// }
|
|
//
|
|
// void main()
|
|
// {
|
|
// foo(BaseColor, OutColor);
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %foo_vf4_vf4_ "foo(vf4;vf4;"
|
|
OpName %v1 "v1"
|
|
OpName %v2 "v2"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpName %param "param"
|
|
OpName %param_0 "param"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%11 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%15 = OpTypeFunction %void %_ptr_Function_v4float %_ptr_Function_v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %11
|
|
%18 = OpLabel
|
|
%param = OpVariable %_ptr_Function_v4float Function
|
|
%param_0 = OpVariable %_ptr_Function_v4float Function
|
|
%19 = OpLoad %v4float %BaseColor
|
|
OpStore %param %19
|
|
%20 = OpFunctionCall %void %foo_vf4_vf4_ %param %param_0
|
|
%21 = OpLoad %v4float %param_0
|
|
OpStore %OutColor %21
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%foo_vf4_vf4_ = OpFunction %void None %15
|
|
%v1 = OpFunctionParameter %_ptr_Function_v4float
|
|
%v2 = OpFunctionParameter %_ptr_Function_v4float
|
|
%22 = OpLabel
|
|
%23 = OpLoad %v4float %v1
|
|
%24 = OpFNegate %v4float %23
|
|
OpStore %v2 %24
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, PrivateStoreElimInEntryNoCalls) {
|
|
// Eliminate stores to private in entry point with no calls
|
|
// Note: Not legal GLSL
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 1) in vec4 Dead;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// private vec4 dv;
|
|
//
|
|
// void main()
|
|
// {
|
|
// vec4 v = BaseColor;
|
|
// dv = Dead;
|
|
// OutColor = v;
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %Dead %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %dv "dv"
|
|
OpName %Dead "Dead"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %Dead Location 1
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%9 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Private_v4float = OpTypePointer Private %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%Dead = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%dv = OpVariable %_ptr_Private_v4float Private
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %Dead %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %Dead "Dead"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %Dead Location 1
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%9 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%Dead = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
)";
|
|
|
|
const std::string main_before =
|
|
R"(%main = OpFunction %void None %9
|
|
%16 = OpLabel
|
|
%v = OpVariable %_ptr_Function_v4float Function
|
|
%17 = OpLoad %v4float %BaseColor
|
|
OpStore %v %17
|
|
%18 = OpLoad %v4float %Dead
|
|
OpStore %dv %18
|
|
%19 = OpLoad %v4float %v
|
|
%20 = OpFNegate %v4float %19
|
|
OpStore %OutColor %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string main_after =
|
|
R"(%main = OpFunction %void None %9
|
|
%16 = OpLabel
|
|
%v = OpVariable %_ptr_Function_v4float Function
|
|
%17 = OpLoad %v4float %BaseColor
|
|
OpStore %v %17
|
|
%19 = OpLoad %v4float %v
|
|
%20 = OpFNegate %v4float %19
|
|
OpStore %OutColor %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + main_before, predefs_after + main_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoPrivateStoreElimIfLoad) {
|
|
// Should not eliminate stores to private when there is a load
|
|
// Note: Not legal GLSL
|
|
//
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// private vec4 pv;
|
|
//
|
|
// void main()
|
|
// {
|
|
// pv = BaseColor;
|
|
// OutColor = pv;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %pv "pv"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Private_v4float = OpTypePointer Private %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%pv = OpVariable %_ptr_Private_v4float Private
|
|
%main = OpFunction %void None %7
|
|
%13 = OpLabel
|
|
%14 = OpLoad %v4float %BaseColor
|
|
OpStore %pv %14
|
|
%15 = OpLoad %v4float %pv
|
|
%16 = OpFNegate %v4float %15
|
|
OpStore %OutColor %16
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoPrivateStoreElimWithCall) {
|
|
// Should not eliminate stores to private when function contains call
|
|
// Note: Not legal GLSL
|
|
//
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// private vec4 v1;
|
|
//
|
|
// void foo()
|
|
// {
|
|
// OutColor = -v1;
|
|
// }
|
|
//
|
|
// void main()
|
|
// {
|
|
// v1 = BaseColor;
|
|
// foo();
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %OutColor %BaseColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %foo_ "foo("
|
|
OpName %OutColor "OutColor"
|
|
OpName %v1 "v1"
|
|
OpName %BaseColor "BaseColor"
|
|
OpDecorate %OutColor Location 0
|
|
OpDecorate %BaseColor Location 0
|
|
%void = OpTypeVoid
|
|
%8 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%_ptr_Private_v4float = OpTypePointer Private %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%v1 = OpVariable %_ptr_Private_v4float Private
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%main = OpFunction %void None %8
|
|
%14 = OpLabel
|
|
%15 = OpLoad %v4float %BaseColor
|
|
OpStore %v1 %15
|
|
%16 = OpFunctionCall %void %foo_
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%foo_ = OpFunction %void None %8
|
|
%17 = OpLabel
|
|
%18 = OpLoad %v4float %v1
|
|
%19 = OpFNegate %v4float %18
|
|
OpStore %OutColor %19
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoPrivateStoreElimInNonEntry) {
|
|
// Should not eliminate stores to private when function is not entry point
|
|
// Note: Not legal GLSL
|
|
//
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// private vec4 v1;
|
|
//
|
|
// void foo()
|
|
// {
|
|
// v1 = BaseColor;
|
|
// }
|
|
//
|
|
// void main()
|
|
// {
|
|
// foo();
|
|
// OutColor = -v1;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %foo_ "foo("
|
|
OpName %v1 "v1"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%8 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Private_v4float = OpTypePointer Private %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%v1 = OpVariable %_ptr_Private_v4float Private
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %8
|
|
%14 = OpLabel
|
|
%15 = OpFunctionCall %void %foo_
|
|
%16 = OpLoad %v4float %v1
|
|
%17 = OpFNegate %v4float %16
|
|
OpStore %OutColor %17
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%foo_ = OpFunction %void None %8
|
|
%18 = OpLabel
|
|
%19 = OpLoad %v4float %BaseColor
|
|
OpStore %v1 %19
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, WorkgroupStoreElimInEntryNoCalls) {
|
|
// Eliminate stores to private in entry point with no calls
|
|
// Note: Not legal GLSL
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 1) in vec4 Dead;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// workgroup vec4 dv;
|
|
//
|
|
// void main()
|
|
// {
|
|
// vec4 v = BaseColor;
|
|
// dv = Dead;
|
|
// OutColor = v;
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %Dead %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %dv "dv"
|
|
OpName %Dead "Dead"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %Dead Location 1
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%9 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Workgroup_v4float = OpTypePointer Workgroup %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%Dead = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%dv = OpVariable %_ptr_Workgroup_v4float Workgroup
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %Dead %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %Dead "Dead"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %Dead Location 1
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%9 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%Dead = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
)";
|
|
|
|
const std::string main_before =
|
|
R"(%main = OpFunction %void None %9
|
|
%16 = OpLabel
|
|
%v = OpVariable %_ptr_Function_v4float Function
|
|
%17 = OpLoad %v4float %BaseColor
|
|
OpStore %v %17
|
|
%18 = OpLoad %v4float %Dead
|
|
OpStore %dv %18
|
|
%19 = OpLoad %v4float %v
|
|
%20 = OpFNegate %v4float %19
|
|
OpStore %OutColor %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string main_after =
|
|
R"(%main = OpFunction %void None %9
|
|
%16 = OpLabel
|
|
%v = OpVariable %_ptr_Function_v4float Function
|
|
%17 = OpLoad %v4float %BaseColor
|
|
OpStore %v %17
|
|
%19 = OpLoad %v4float %v
|
|
%20 = OpFNegate %v4float %19
|
|
OpStore %OutColor %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + main_before, predefs_after + main_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateDeadIfThenElse) {
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float d;
|
|
// if (BaseColor.x == 0)
|
|
// d = BaseColor.y;
|
|
// else
|
|
// d = BaseColor.z;
|
|
// OutColor = vec4(1.0,1.0,1.0,1.0);
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %d "d"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%float_0 = OpConstant %float 0
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%uint_1 = OpConstant %uint 1
|
|
%uint_2 = OpConstant %uint 2
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_1 = OpConstant %float 1
|
|
%21 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_1 = OpConstant %float 1
|
|
%21 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %7
|
|
%22 = OpLabel
|
|
%d = OpVariable %_ptr_Function_float Function
|
|
%23 = OpAccessChain %_ptr_Input_float %BaseColor %uint_0
|
|
%24 = OpLoad %float %23
|
|
%25 = OpFOrdEqual %bool %24 %float_0
|
|
OpSelectionMerge %26 None
|
|
OpBranchConditional %25 %27 %28
|
|
%27 = OpLabel
|
|
%29 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%30 = OpLoad %float %29
|
|
OpStore %d %30
|
|
OpBranch %26
|
|
%28 = OpLabel
|
|
%31 = OpAccessChain %_ptr_Input_float %BaseColor %uint_2
|
|
%32 = OpLoad %float %31
|
|
OpStore %d %32
|
|
OpBranch %26
|
|
%26 = OpLabel
|
|
OpStore %OutColor %21
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %7
|
|
%22 = OpLabel
|
|
OpBranch %26
|
|
%26 = OpLabel
|
|
OpStore %OutColor %21
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + func_before, predefs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateDeadIfThen) {
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float d;
|
|
// if (BaseColor.x == 0)
|
|
// d = BaseColor.y;
|
|
// OutColor = vec4(1.0,1.0,1.0,1.0);
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %d "d"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%float_0 = OpConstant %float 0
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%uint_1 = OpConstant %uint 1
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_1 = OpConstant %float 1
|
|
%20 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_1 = OpConstant %float 1
|
|
%20 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %7
|
|
%21 = OpLabel
|
|
%d = OpVariable %_ptr_Function_float Function
|
|
%22 = OpAccessChain %_ptr_Input_float %BaseColor %uint_0
|
|
%23 = OpLoad %float %22
|
|
%24 = OpFOrdEqual %bool %23 %float_0
|
|
OpSelectionMerge %25 None
|
|
OpBranchConditional %24 %26 %25
|
|
%26 = OpLabel
|
|
%27 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%28 = OpLoad %float %27
|
|
OpStore %d %28
|
|
OpBranch %25
|
|
%25 = OpLabel
|
|
OpStore %OutColor %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %7
|
|
%21 = OpLabel
|
|
OpBranch %25
|
|
%25 = OpLabel
|
|
OpStore %OutColor %20
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + func_before, predefs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateDeadSwitch) {
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 1) in flat int x;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float d;
|
|
// switch (x) {
|
|
// case 0:
|
|
// d = BaseColor.y;
|
|
// }
|
|
// OutColor = vec4(1.0,1.0,1.0,1.0);
|
|
// }
|
|
const std::string before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %x %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %x "x"
|
|
OpName %d "d"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %x Flat
|
|
OpDecorate %x Location 1
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%3 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Input_int = OpTypePointer Input %int
|
|
%x = OpVariable %_ptr_Input_int Input
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%uint = OpTypeInt 32 0
|
|
%uint_1 = OpConstant %uint 1
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_1 = OpConstant %float 1
|
|
%27 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
|
|
%main = OpFunction %void None %3
|
|
%5 = OpLabel
|
|
%d = OpVariable %_ptr_Function_float Function
|
|
%9 = OpLoad %int %x
|
|
OpSelectionMerge %11 None
|
|
OpSwitch %9 %11 0 %10
|
|
%10 = OpLabel
|
|
%21 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%22 = OpLoad %float %21
|
|
OpStore %d %22
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpStore %OutColor %27
|
|
OpReturn
|
|
OpFunctionEnd)";
|
|
|
|
const std::string after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %x %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %x "x"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %x Flat
|
|
OpDecorate %x Location 1
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%3 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Input_int = OpTypePointer Input %int
|
|
%x = OpVariable %_ptr_Input_int Input
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_1 = OpConstant %float 1
|
|
%27 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
|
|
%main = OpFunction %void None %3
|
|
%5 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpStore %OutColor %27
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(before, after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateDeadIfThenElseNested) {
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float d;
|
|
// if (BaseColor.x == 0)
|
|
// if (BaseColor.y == 0)
|
|
// d = 0.0;
|
|
// else
|
|
// d = 0.25;
|
|
// else
|
|
// if (BaseColor.y == 0)
|
|
// d = 0.5;
|
|
// else
|
|
// d = 0.75;
|
|
// OutColor = vec4(1.0,1.0,1.0,1.0);
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %d "d"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%float_0 = OpConstant %float 0
|
|
%bool = OpTypeBool
|
|
%uint_1 = OpConstant %uint 1
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0_25 = OpConstant %float 0.25
|
|
%float_0_5 = OpConstant %float 0.5
|
|
%float_0_75 = OpConstant %float 0.75
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_1 = OpConstant %float 1
|
|
%23 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%float_1 = OpConstant %float 1
|
|
%23 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %7
|
|
%24 = OpLabel
|
|
%d = OpVariable %_ptr_Function_float Function
|
|
%25 = OpAccessChain %_ptr_Input_float %BaseColor %uint_0
|
|
%26 = OpLoad %float %25
|
|
%27 = OpFOrdEqual %bool %26 %float_0
|
|
OpSelectionMerge %28 None
|
|
OpBranchConditional %27 %29 %30
|
|
%29 = OpLabel
|
|
%31 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%32 = OpLoad %float %31
|
|
%33 = OpFOrdEqual %bool %32 %float_0
|
|
OpSelectionMerge %34 None
|
|
OpBranchConditional %33 %35 %36
|
|
%35 = OpLabel
|
|
OpStore %d %float_0
|
|
OpBranch %34
|
|
%36 = OpLabel
|
|
OpStore %d %float_0_25
|
|
OpBranch %34
|
|
%34 = OpLabel
|
|
OpBranch %28
|
|
%30 = OpLabel
|
|
%37 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%38 = OpLoad %float %37
|
|
%39 = OpFOrdEqual %bool %38 %float_0
|
|
OpSelectionMerge %40 None
|
|
OpBranchConditional %39 %41 %42
|
|
%41 = OpLabel
|
|
OpStore %d %float_0_5
|
|
OpBranch %40
|
|
%42 = OpLabel
|
|
OpStore %d %float_0_75
|
|
OpBranch %40
|
|
%40 = OpLabel
|
|
OpBranch %28
|
|
%28 = OpLabel
|
|
OpStore %OutColor %23
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %7
|
|
%24 = OpLabel
|
|
OpBranch %28
|
|
%28 = OpLabel
|
|
OpStore %OutColor %23
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + func_before, predefs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateLiveIfThenElse) {
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float t;
|
|
// if (BaseColor.x == 0)
|
|
// t = BaseColor.y;
|
|
// else
|
|
// t = BaseColor.z;
|
|
// OutColor = vec4(t);
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %t "t"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%float_0 = OpConstant %float 0
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%uint_1 = OpConstant %uint 1
|
|
%uint_2 = OpConstant %uint 2
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %7
|
|
%20 = OpLabel
|
|
%t = OpVariable %_ptr_Function_float Function
|
|
%21 = OpAccessChain %_ptr_Input_float %BaseColor %uint_0
|
|
%22 = OpLoad %float %21
|
|
%23 = OpFOrdEqual %bool %22 %float_0
|
|
OpSelectionMerge %24 None
|
|
OpBranchConditional %23 %25 %26
|
|
%25 = OpLabel
|
|
%27 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%28 = OpLoad %float %27
|
|
OpStore %t %28
|
|
OpBranch %24
|
|
%26 = OpLabel
|
|
%29 = OpAccessChain %_ptr_Input_float %BaseColor %uint_2
|
|
%30 = OpLoad %float %29
|
|
OpStore %t %30
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
%31 = OpLoad %float %t
|
|
%32 = OpCompositeConstruct %v4float %31 %31 %31 %31
|
|
OpStore %OutColor %32
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateLiveIfThenElseNested) {
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float t;
|
|
// if (BaseColor.x == 0)
|
|
// if (BaseColor.y == 0)
|
|
// t = 0.0;
|
|
// else
|
|
// t = 0.25;
|
|
// else
|
|
// if (BaseColor.y == 0)
|
|
// t = 0.5;
|
|
// else
|
|
// t = 0.75;
|
|
// OutColor = vec4(t);
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %t "t"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%float_0 = OpConstant %float 0
|
|
%bool = OpTypeBool
|
|
%uint_1 = OpConstant %uint 1
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0_25 = OpConstant %float 0.25
|
|
%float_0_5 = OpConstant %float 0.5
|
|
%float_0_75 = OpConstant %float 0.75
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %7
|
|
%22 = OpLabel
|
|
%t = OpVariable %_ptr_Function_float Function
|
|
%23 = OpAccessChain %_ptr_Input_float %BaseColor %uint_0
|
|
%24 = OpLoad %float %23
|
|
%25 = OpFOrdEqual %bool %24 %float_0
|
|
OpSelectionMerge %26 None
|
|
OpBranchConditional %25 %27 %28
|
|
%27 = OpLabel
|
|
%29 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%30 = OpLoad %float %29
|
|
%31 = OpFOrdEqual %bool %30 %float_0
|
|
OpSelectionMerge %32 None
|
|
OpBranchConditional %31 %33 %34
|
|
%33 = OpLabel
|
|
OpStore %t %float_0
|
|
OpBranch %32
|
|
%34 = OpLabel
|
|
OpStore %t %float_0_25
|
|
OpBranch %32
|
|
%32 = OpLabel
|
|
OpBranch %26
|
|
%28 = OpLabel
|
|
%35 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%36 = OpLoad %float %35
|
|
%37 = OpFOrdEqual %bool %36 %float_0
|
|
OpSelectionMerge %38 None
|
|
OpBranchConditional %37 %39 %40
|
|
%39 = OpLabel
|
|
OpStore %t %float_0_5
|
|
OpBranch %38
|
|
%40 = OpLabel
|
|
OpStore %t %float_0_75
|
|
OpBranch %38
|
|
%38 = OpLabel
|
|
OpBranch %26
|
|
%26 = OpLabel
|
|
%41 = OpLoad %float %t
|
|
%42 = OpCompositeConstruct %v4float %41 %41 %41 %41
|
|
OpStore %OutColor %42
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateIfWithPhi) {
|
|
// Note: Assembly hand-optimized from GLSL
|
|
//
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float t;
|
|
// if (BaseColor.x == 0)
|
|
// t = 0.0;
|
|
// else
|
|
// t = 1.0;
|
|
// OutColor = vec4(t);
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%6 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%float_0 = OpConstant %float 0
|
|
%bool = OpTypeBool
|
|
%float_1 = OpConstant %float 1
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %6
|
|
%17 = OpLabel
|
|
%18 = OpAccessChain %_ptr_Input_float %BaseColor %uint_0
|
|
%19 = OpLoad %float %18
|
|
%20 = OpFOrdEqual %bool %19 %float_0
|
|
OpSelectionMerge %21 None
|
|
OpBranchConditional %20 %22 %23
|
|
%22 = OpLabel
|
|
OpBranch %21
|
|
%23 = OpLabel
|
|
OpBranch %21
|
|
%21 = OpLabel
|
|
%24 = OpPhi %float %float_0 %22 %float_1 %23
|
|
%25 = OpCompositeConstruct %v4float %24 %24 %24 %24
|
|
OpStore %OutColor %25
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateIfBreak) {
|
|
// Note: Assembly optimized from GLSL
|
|
//
|
|
// #version 450
|
|
//
|
|
// layout(location=0) in vec4 InColor;
|
|
// layout(location=0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float f = 0.0;
|
|
// for (;;) {
|
|
// f += 2.0;
|
|
// if (f > 20.0)
|
|
// break;
|
|
// }
|
|
//
|
|
// OutColor = InColor / f;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %OutColor %InColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %f "f"
|
|
OpName %OutColor "OutColor"
|
|
OpName %InColor "InColor"
|
|
OpDecorate %OutColor Location 0
|
|
OpDecorate %InColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%float_2 = OpConstant %float 2
|
|
%float_20 = OpConstant %float 20
|
|
%bool = OpTypeBool
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%InColor = OpVariable %_ptr_Input_v4float Input
|
|
%main = OpFunction %void None %7
|
|
%17 = OpLabel
|
|
%f = OpVariable %_ptr_Function_float Function
|
|
OpStore %f %float_0
|
|
OpBranch %18
|
|
%18 = OpLabel
|
|
OpLoopMerge %19 %20 None
|
|
OpBranch %21
|
|
%21 = OpLabel
|
|
%22 = OpLoad %float %f
|
|
%23 = OpFAdd %float %22 %float_2
|
|
OpStore %f %23
|
|
%24 = OpLoad %float %f
|
|
%25 = OpFOrdGreaterThan %bool %24 %float_20
|
|
OpSelectionMerge %26 None
|
|
OpBranchConditional %25 %27 %26
|
|
%27 = OpLabel
|
|
OpBranch %19
|
|
%26 = OpLabel
|
|
OpBranch %20
|
|
%20 = OpLabel
|
|
OpBranch %18
|
|
%19 = OpLabel
|
|
%28 = OpLoad %v4float %InColor
|
|
%29 = OpLoad %float %f
|
|
%30 = OpCompositeConstruct %v4float %29 %29 %29 %29
|
|
%31 = OpFDiv %v4float %28 %30
|
|
OpStore %OutColor %31
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateIfBreak2) {
|
|
// Do not eliminate break as conditional branch with merge instruction
|
|
// Note: SPIR-V edited to add merge instruction before break.
|
|
//
|
|
// #version 430
|
|
//
|
|
// layout(std430) buffer U_t
|
|
// {
|
|
// float g_F[10];
|
|
// };
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++)
|
|
// s += g_F[i];
|
|
// o = s;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %s "s"
|
|
OpName %i "i"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%U_t = OpTypeStruct %_arr_float_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
%main = OpFunction %void None %10
|
|
%25 = OpLabel
|
|
%s = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
OpStore %s %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %26
|
|
%26 = OpLabel
|
|
OpLoopMerge %27 %28 None
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
%30 = OpLoad %int %i
|
|
%31 = OpSLessThan %bool %30 %int_10
|
|
OpSelectionMerge %32 None
|
|
OpBranchConditional %31 %32 %27
|
|
%32 = OpLabel
|
|
%33 = OpLoad %int %i
|
|
%34 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %33
|
|
%35 = OpLoad %float %34
|
|
%36 = OpLoad %float %s
|
|
%37 = OpFAdd %float %36 %35
|
|
OpStore %s %37
|
|
OpBranch %28
|
|
%28 = OpLabel
|
|
%38 = OpLoad %int %i
|
|
%39 = OpIAdd %int %38 %int_1
|
|
OpStore %i %39
|
|
OpBranch %26
|
|
%27 = OpLabel
|
|
%40 = OpLoad %float %s
|
|
OpStore %o %40
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateEntireUselessLoop) {
|
|
// #version 140
|
|
// in vec4 BaseColor;
|
|
//
|
|
// layout(std140) uniform U_t
|
|
// {
|
|
// int g_I ;
|
|
// } ;
|
|
//
|
|
// void main()
|
|
// {
|
|
// vec4 v = BaseColor;
|
|
// float df = 0.0;
|
|
// int i = 0;
|
|
// while (i < g_I) {
|
|
// df = df * 0.5;
|
|
// i = i + 1;
|
|
// }
|
|
// gl_FragColor = v;
|
|
// }
|
|
|
|
const std::string predefs1 =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %gl_FragColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
)";
|
|
|
|
const std::string names_before =
|
|
R"(OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %df "df"
|
|
OpName %i "i"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_I"
|
|
OpName %_ ""
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
)";
|
|
|
|
const std::string names_after =
|
|
R"(OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
)";
|
|
|
|
const std::string predefs2_before =
|
|
R"(OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t Block
|
|
OpDecorate %_ DescriptorSet 0
|
|
%void = OpTypeVoid
|
|
%11 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%U_t = OpTypeStruct %int
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_int = OpTypePointer Uniform %int
|
|
%bool = OpTypeBool
|
|
%float_0_5 = OpConstant %float 0.5
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%gl_FragColor = OpVariable %_ptr_Output_v4float Output
|
|
)";
|
|
|
|
const std::string predefs2_after =
|
|
R"(%void = OpTypeVoid
|
|
%11 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%gl_FragColor = OpVariable %_ptr_Output_v4float Output
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %11
|
|
%27 = OpLabel
|
|
%v = OpVariable %_ptr_Function_v4float Function
|
|
%df = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
%28 = OpLoad %v4float %BaseColor
|
|
OpStore %v %28
|
|
OpStore %df %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
OpLoopMerge %30 %31 None
|
|
OpBranch %32
|
|
%32 = OpLabel
|
|
%33 = OpLoad %int %i
|
|
%34 = OpAccessChain %_ptr_Uniform_int %_ %int_0
|
|
%35 = OpLoad %int %34
|
|
%36 = OpSLessThan %bool %33 %35
|
|
OpBranchConditional %36 %37 %30
|
|
%37 = OpLabel
|
|
%38 = OpLoad %float %df
|
|
%39 = OpFMul %float %38 %float_0_5
|
|
OpStore %df %39
|
|
%40 = OpLoad %int %i
|
|
%41 = OpIAdd %int %40 %int_1
|
|
OpStore %i %41
|
|
OpBranch %31
|
|
%31 = OpLabel
|
|
OpBranch %29
|
|
%30 = OpLabel
|
|
%42 = OpLoad %v4float %v
|
|
OpStore %gl_FragColor %42
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %11
|
|
%27 = OpLabel
|
|
%v = OpVariable %_ptr_Function_v4float Function
|
|
%28 = OpLoad %v4float %BaseColor
|
|
OpStore %v %28
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
OpBranch %30
|
|
%30 = OpLabel
|
|
%42 = OpLoad %v4float %v
|
|
OpStore %gl_FragColor %42
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs1 + names_before + predefs2_before + func_before,
|
|
predefs1 + names_after + predefs2_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateBusyLoop) {
|
|
// Note: SPIR-V edited to replace AtomicAdd(i,0) with AtomicLoad(i)
|
|
//
|
|
// #version 450
|
|
//
|
|
// layout(std430) buffer I_t
|
|
// {
|
|
// int g_I;
|
|
// int g_I2;
|
|
// };
|
|
//
|
|
// layout(location = 0) out int o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// while (atomicAdd(g_I, 0) == 0) {}
|
|
// o = g_I2;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %I_t "I_t"
|
|
OpMemberName %I_t 0 "g_I"
|
|
OpMemberName %I_t 1 "g_I2"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpMemberDecorate %I_t 0 Offset 0
|
|
OpMemberDecorate %I_t 1 Offset 4
|
|
OpDecorate %I_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%I_t = OpTypeStruct %int %int
|
|
%_ptr_Uniform_I_t = OpTypePointer Uniform %I_t
|
|
%_ = OpVariable %_ptr_Uniform_I_t Uniform
|
|
%int_0 = OpConstant %int 0
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Uniform_int = OpTypePointer Uniform %int
|
|
%uint = OpTypeInt 32 0
|
|
%uint_1 = OpConstant %uint 1
|
|
%uint_0 = OpConstant %uint 0
|
|
%bool = OpTypeBool
|
|
%_ptr_Output_int = OpTypePointer Output %int
|
|
%o = OpVariable %_ptr_Output_int Output
|
|
%main = OpFunction %void None %7
|
|
%18 = OpLabel
|
|
OpBranch %19
|
|
%19 = OpLabel
|
|
OpLoopMerge %20 %21 None
|
|
OpBranch %22
|
|
%22 = OpLabel
|
|
%23 = OpAccessChain %_ptr_Uniform_int %_ %int_0
|
|
%24 = OpAtomicLoad %int %23 %uint_1 %uint_0
|
|
%25 = OpIEqual %bool %24 %int_0
|
|
OpBranchConditional %25 %26 %20
|
|
%26 = OpLabel
|
|
OpBranch %21
|
|
%21 = OpLabel
|
|
OpBranch %19
|
|
%20 = OpLabel
|
|
%27 = OpAccessChain %_ptr_Uniform_int %_ %int_1
|
|
%28 = OpLoad %int %27
|
|
OpStore %o %28
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateLiveLoop) {
|
|
// Note: SPIR-V optimized
|
|
//
|
|
// #version 430
|
|
//
|
|
// layout(std430) buffer U_t
|
|
// {
|
|
// float g_F[10];
|
|
// };
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++)
|
|
// s += g_F[i];
|
|
// o = s;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%8 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%U_t = OpTypeStruct %_arr_float_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
%main = OpFunction %void None %8
|
|
%21 = OpLabel
|
|
OpBranch %22
|
|
%22 = OpLabel
|
|
%23 = OpPhi %float %float_0 %21 %24 %25
|
|
%26 = OpPhi %int %int_0 %21 %27 %25
|
|
OpLoopMerge %28 %25 None
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
%30 = OpSLessThan %bool %26 %int_10
|
|
OpBranchConditional %30 %31 %28
|
|
%31 = OpLabel
|
|
%32 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %26
|
|
%33 = OpLoad %float %32
|
|
%24 = OpFAdd %float %23 %33
|
|
OpBranch %25
|
|
%25 = OpLabel
|
|
%27 = OpIAdd %int %26 %int_1
|
|
OpBranch %22
|
|
%28 = OpLabel
|
|
OpStore %o %23
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateEntireFunctionBody) {
|
|
// #version 450
|
|
//
|
|
// layout(location = 0) in vec4 BaseColor;
|
|
// layout(location = 0) out vec4 OutColor;
|
|
//
|
|
// void main()
|
|
// {
|
|
// float d;
|
|
// if (BaseColor.x == 0)
|
|
// d = BaseColor.y;
|
|
// else
|
|
// d = BaseColor.z;
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %d "d"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%float_0 = OpConstant %float 0
|
|
%bool = OpTypeBool
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%uint_1 = OpConstant %uint 1
|
|
%uint_2 = OpConstant %uint 2
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %OutColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %OutColor "OutColor"
|
|
OpDecorate %BaseColor Location 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%BaseColor = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %7
|
|
%20 = OpLabel
|
|
%d = OpVariable %_ptr_Function_float Function
|
|
%21 = OpAccessChain %_ptr_Input_float %BaseColor %uint_0
|
|
%22 = OpLoad %float %21
|
|
%23 = OpFOrdEqual %bool %22 %float_0
|
|
OpSelectionMerge %24 None
|
|
OpBranchConditional %23 %25 %26
|
|
%25 = OpLabel
|
|
%27 = OpAccessChain %_ptr_Input_float %BaseColor %uint_1
|
|
%28 = OpLoad %float %27
|
|
OpStore %d %28
|
|
OpBranch %24
|
|
%26 = OpLabel
|
|
%29 = OpAccessChain %_ptr_Input_float %BaseColor %uint_2
|
|
%30 = OpLoad %float %29
|
|
OpStore %d %30
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %7
|
|
%20 = OpLabel
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + func_before, predefs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateUselessInnerLoop) {
|
|
// #version 430
|
|
//
|
|
// layout(std430) buffer U_t
|
|
// {
|
|
// float g_F[10];
|
|
// };
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++) {
|
|
// for (int j=0; j<10; j++) {
|
|
// }
|
|
// s += g_F[i];
|
|
// }
|
|
// o = s;
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %s "s"
|
|
OpName %i "i"
|
|
OpName %j "j"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%11 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%int_1 = OpConstant %int 1
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%U_t = OpTypeStruct %_arr_float_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %s "s"
|
|
OpName %i "i"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%11 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%int_1 = OpConstant %int 1
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%U_t = OpTypeStruct %_arr_float_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %11
|
|
%26 = OpLabel
|
|
%s = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
%j = OpVariable %_ptr_Function_int Function
|
|
OpStore %s %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %27
|
|
%27 = OpLabel
|
|
OpLoopMerge %28 %29 None
|
|
OpBranch %30
|
|
%30 = OpLabel
|
|
%31 = OpLoad %int %i
|
|
%32 = OpSLessThan %bool %31 %int_10
|
|
OpBranchConditional %32 %33 %28
|
|
%33 = OpLabel
|
|
OpStore %j %int_0
|
|
OpBranch %34
|
|
%34 = OpLabel
|
|
OpLoopMerge %35 %36 None
|
|
OpBranch %37
|
|
%37 = OpLabel
|
|
%38 = OpLoad %int %j
|
|
%39 = OpSLessThan %bool %38 %int_10
|
|
OpBranchConditional %39 %40 %35
|
|
%40 = OpLabel
|
|
OpBranch %36
|
|
%36 = OpLabel
|
|
%41 = OpLoad %int %j
|
|
%42 = OpIAdd %int %41 %int_1
|
|
OpStore %j %42
|
|
OpBranch %34
|
|
%35 = OpLabel
|
|
%43 = OpLoad %int %i
|
|
%44 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %43
|
|
%45 = OpLoad %float %44
|
|
%46 = OpLoad %float %s
|
|
%47 = OpFAdd %float %46 %45
|
|
OpStore %s %47
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
%48 = OpLoad %int %i
|
|
%49 = OpIAdd %int %48 %int_1
|
|
OpStore %i %49
|
|
OpBranch %27
|
|
%28 = OpLabel
|
|
%50 = OpLoad %float %s
|
|
OpStore %o %50
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %11
|
|
%26 = OpLabel
|
|
%s = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
OpStore %s %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %27
|
|
%27 = OpLabel
|
|
OpLoopMerge %28 %29 None
|
|
OpBranch %30
|
|
%30 = OpLabel
|
|
%31 = OpLoad %int %i
|
|
%32 = OpSLessThan %bool %31 %int_10
|
|
OpBranchConditional %32 %33 %28
|
|
%33 = OpLabel
|
|
OpBranch %34
|
|
%34 = OpLabel
|
|
OpBranch %35
|
|
%35 = OpLabel
|
|
%43 = OpLoad %int %i
|
|
%44 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %43
|
|
%45 = OpLoad %float %44
|
|
%46 = OpLoad %float %s
|
|
%47 = OpFAdd %float %46 %45
|
|
OpStore %s %47
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
%48 = OpLoad %int %i
|
|
%49 = OpIAdd %int %48 %int_1
|
|
OpStore %i %49
|
|
OpBranch %27
|
|
%28 = OpLabel
|
|
%50 = OpLoad %float %s
|
|
OpStore %o %50
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + func_before, predefs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateUselessNestedLoopWithIf) {
|
|
// #version 430
|
|
//
|
|
// layout(std430) buffer U_t
|
|
// {
|
|
// float g_F[10][10];
|
|
// };
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++) {
|
|
// for (int j=0; j<10; j++) {
|
|
// float t = g_F[i][j];
|
|
// if (t > 0.0)
|
|
// s += t;
|
|
// }
|
|
// }
|
|
// o = 0.0;
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %s "s"
|
|
OpName %i "i"
|
|
OpName %j "j"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpDecorate %_arr__arr_float_uint_10_uint_10 ArrayStride 40
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%12 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%_arr__arr_float_uint_10_uint_10 = OpTypeArray %_arr_float_uint_10 %uint_10
|
|
%U_t = OpTypeStruct %_arr__arr_float_uint_10_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %o "o"
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%12 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%float_0 = OpConstant %float 0
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %12
|
|
%27 = OpLabel
|
|
%s = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
%j = OpVariable %_ptr_Function_int Function
|
|
OpStore %s %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %28
|
|
%28 = OpLabel
|
|
OpLoopMerge %29 %30 None
|
|
OpBranch %31
|
|
%31 = OpLabel
|
|
%32 = OpLoad %int %i
|
|
%33 = OpSLessThan %bool %32 %int_10
|
|
OpBranchConditional %33 %34 %29
|
|
%34 = OpLabel
|
|
OpStore %j %int_0
|
|
OpBranch %35
|
|
%35 = OpLabel
|
|
OpLoopMerge %36 %37 None
|
|
OpBranch %38
|
|
%38 = OpLabel
|
|
%39 = OpLoad %int %j
|
|
%40 = OpSLessThan %bool %39 %int_10
|
|
OpBranchConditional %40 %41 %36
|
|
%41 = OpLabel
|
|
%42 = OpLoad %int %i
|
|
%43 = OpLoad %int %j
|
|
%44 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %42 %43
|
|
%45 = OpLoad %float %44
|
|
%46 = OpFOrdGreaterThan %bool %45 %float_0
|
|
OpSelectionMerge %47 None
|
|
OpBranchConditional %46 %48 %47
|
|
%48 = OpLabel
|
|
%49 = OpLoad %float %s
|
|
%50 = OpFAdd %float %49 %45
|
|
OpStore %s %50
|
|
OpBranch %47
|
|
%47 = OpLabel
|
|
OpBranch %37
|
|
%37 = OpLabel
|
|
%51 = OpLoad %int %j
|
|
%52 = OpIAdd %int %51 %int_1
|
|
OpStore %j %52
|
|
OpBranch %35
|
|
%36 = OpLabel
|
|
OpBranch %30
|
|
%30 = OpLabel
|
|
%53 = OpLoad %int %i
|
|
%54 = OpIAdd %int %53 %int_1
|
|
OpStore %i %54
|
|
OpBranch %28
|
|
%29 = OpLabel
|
|
OpStore %o %float_0
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %12
|
|
%27 = OpLabel
|
|
OpBranch %28
|
|
%28 = OpLabel
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
OpStore %o %float_0
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + func_before, predefs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, EliminateEmptyIfBeforeContinue) {
|
|
// #version 430
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++) {
|
|
// s += 1.0;
|
|
// if (i > s) {}
|
|
// }
|
|
// o = s;
|
|
// }
|
|
|
|
const std::string predefs_before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %3
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpSourceExtension "GL_GOOGLE_cpp_style_line_directive"
|
|
OpSourceExtension "GL_GOOGLE_include_directive"
|
|
OpName %main "main"
|
|
OpDecorate %3 Location 0
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%float_1 = OpConstant %float 1
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%3 = OpVariable %_ptr_Output_float Output
|
|
)";
|
|
|
|
const std::string predefs_after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %3
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpSourceExtension "GL_GOOGLE_cpp_style_line_directive"
|
|
OpSourceExtension "GL_GOOGLE_include_directive"
|
|
OpName %main "main"
|
|
OpDecorate %3 Location 0
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%float_1 = OpConstant %float 1
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%3 = OpVariable %_ptr_Output_float Output
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%main = OpFunction %void None %5
|
|
%16 = OpLabel
|
|
OpBranch %17
|
|
%17 = OpLabel
|
|
%18 = OpPhi %float %float_0 %16 %19 %20
|
|
%21 = OpPhi %int %int_0 %16 %22 %20
|
|
OpLoopMerge %23 %20 None
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
%25 = OpSLessThan %bool %21 %int_10
|
|
OpBranchConditional %25 %26 %23
|
|
%26 = OpLabel
|
|
%19 = OpFAdd %float %18 %float_1
|
|
%27 = OpConvertFToS %int %19
|
|
%28 = OpSGreaterThan %bool %21 %27
|
|
OpSelectionMerge %20 None
|
|
OpBranchConditional %28 %29 %20
|
|
%29 = OpLabel
|
|
OpBranch %20
|
|
%20 = OpLabel
|
|
%22 = OpIAdd %int %21 %int_1
|
|
OpBranch %17
|
|
%23 = OpLabel
|
|
OpStore %3 %18
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %5
|
|
%16 = OpLabel
|
|
OpBranch %17
|
|
%17 = OpLabel
|
|
%18 = OpPhi %float %float_0 %16 %19 %20
|
|
%21 = OpPhi %int %int_0 %16 %22 %20
|
|
OpLoopMerge %23 %20 None
|
|
OpBranch %24
|
|
%24 = OpLabel
|
|
%25 = OpSLessThan %bool %21 %int_10
|
|
OpBranchConditional %25 %26 %23
|
|
%26 = OpLabel
|
|
%19 = OpFAdd %float %18 %float_1
|
|
OpBranch %20
|
|
%20 = OpLabel
|
|
%22 = OpIAdd %int %21 %int_1
|
|
OpBranch %17
|
|
%23 = OpLabel
|
|
OpStore %3 %18
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs_before + func_before, predefs_after + func_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateLiveNestedLoopWithIf) {
|
|
// Note: SPIR-V optimized
|
|
//
|
|
// #version 430
|
|
//
|
|
// layout(std430) buffer U_t
|
|
// {
|
|
// float g_F[10][10];
|
|
// };
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++) {
|
|
// for (int j=0; j<10; j++) {
|
|
// float t = g_F[i][j];
|
|
// if (t > 0.0)
|
|
// s += t;
|
|
// }
|
|
// }
|
|
// o = s;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %s "s"
|
|
OpName %i "i"
|
|
OpName %j "j"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpDecorate %_arr__arr_float_uint_10_uint_10 ArrayStride 40
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%12 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%_arr__arr_float_uint_10_uint_10 = OpTypeArray %_arr_float_uint_10 %uint_10
|
|
%U_t = OpTypeStruct %_arr__arr_float_uint_10_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
%main = OpFunction %void None %12
|
|
%27 = OpLabel
|
|
%s = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
%j = OpVariable %_ptr_Function_int Function
|
|
OpStore %s %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %28
|
|
%28 = OpLabel
|
|
OpLoopMerge %29 %30 None
|
|
OpBranch %31
|
|
%31 = OpLabel
|
|
%32 = OpLoad %int %i
|
|
%33 = OpSLessThan %bool %32 %int_10
|
|
OpBranchConditional %33 %34 %29
|
|
%34 = OpLabel
|
|
OpStore %j %int_0
|
|
OpBranch %35
|
|
%35 = OpLabel
|
|
OpLoopMerge %36 %37 None
|
|
OpBranch %38
|
|
%38 = OpLabel
|
|
%39 = OpLoad %int %j
|
|
%40 = OpSLessThan %bool %39 %int_10
|
|
OpBranchConditional %40 %41 %36
|
|
%41 = OpLabel
|
|
%42 = OpLoad %int %i
|
|
%43 = OpLoad %int %j
|
|
%44 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %42 %43
|
|
%45 = OpLoad %float %44
|
|
%46 = OpFOrdGreaterThan %bool %45 %float_0
|
|
OpSelectionMerge %47 None
|
|
OpBranchConditional %46 %48 %47
|
|
%48 = OpLabel
|
|
%49 = OpLoad %float %s
|
|
%50 = OpFAdd %float %49 %45
|
|
OpStore %s %50
|
|
OpBranch %47
|
|
%47 = OpLabel
|
|
OpBranch %37
|
|
%37 = OpLabel
|
|
%51 = OpLoad %int %j
|
|
%52 = OpIAdd %int %51 %int_1
|
|
OpStore %j %52
|
|
OpBranch %35
|
|
%36 = OpLabel
|
|
OpBranch %30
|
|
%30 = OpLabel
|
|
%53 = OpLoad %int %i
|
|
%54 = OpIAdd %int %53 %int_1
|
|
OpStore %i %54
|
|
OpBranch %28
|
|
%29 = OpLabel
|
|
%55 = OpLoad %float %s
|
|
OpStore %o %55
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateIfContinue) {
|
|
// Do not eliminate continue embedded in if construct
|
|
//
|
|
// #version 430
|
|
//
|
|
// layout(std430) buffer U_t
|
|
// {
|
|
// float g_F[10];
|
|
// };
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++) {
|
|
// if (i % 2 == 0) continue;
|
|
// s += g_F[i];
|
|
// }
|
|
// o = s;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %s "s"
|
|
OpName %i "i"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%int_2 = OpConstant %int 2
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%U_t = OpTypeStruct %_arr_float_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
%main = OpFunction %void None %10
|
|
%26 = OpLabel
|
|
%s = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
OpStore %s %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %27
|
|
%27 = OpLabel
|
|
OpLoopMerge %28 %29 None
|
|
OpBranch %30
|
|
%30 = OpLabel
|
|
%31 = OpLoad %int %i
|
|
%32 = OpSLessThan %bool %31 %int_10
|
|
OpBranchConditional %32 %33 %28
|
|
%33 = OpLabel
|
|
%34 = OpLoad %int %i
|
|
%35 = OpSMod %int %34 %int_2
|
|
%36 = OpIEqual %bool %35 %int_0
|
|
OpSelectionMerge %37 None
|
|
OpBranchConditional %36 %38 %37
|
|
%38 = OpLabel
|
|
OpBranch %29
|
|
%37 = OpLabel
|
|
%39 = OpLoad %int %i
|
|
%40 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %39
|
|
%41 = OpLoad %float %40
|
|
%42 = OpLoad %float %s
|
|
%43 = OpFAdd %float %42 %41
|
|
OpStore %s %43
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
%44 = OpLoad %int %i
|
|
%45 = OpIAdd %int %44 %int_1
|
|
OpStore %i %45
|
|
OpBranch %27
|
|
%28 = OpLabel
|
|
%46 = OpLoad %float %s
|
|
OpStore %o %46
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateIfContinue2) {
|
|
// Do not eliminate continue not embedded in if construct
|
|
//
|
|
// #version 430
|
|
//
|
|
// layout(std430) buffer U_t
|
|
// {
|
|
// float g_F[10];
|
|
// };
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++) {
|
|
// if (i % 2 == 0) continue;
|
|
// s += g_F[i];
|
|
// }
|
|
// o = s;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %s "s"
|
|
OpName %i "i"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%int_2 = OpConstant %int 2
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%U_t = OpTypeStruct %_arr_float_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
%main = OpFunction %void None %10
|
|
%26 = OpLabel
|
|
%s = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
OpStore %s %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %27
|
|
%27 = OpLabel
|
|
OpLoopMerge %28 %29 None
|
|
OpBranch %30
|
|
%30 = OpLabel
|
|
%31 = OpLoad %int %i
|
|
%32 = OpSLessThan %bool %31 %int_10
|
|
OpBranchConditional %32 %33 %28
|
|
%33 = OpLabel
|
|
%34 = OpLoad %int %i
|
|
%35 = OpSMod %int %34 %int_2
|
|
%36 = OpIEqual %bool %35 %int_0
|
|
OpBranchConditional %36 %29 %37
|
|
%37 = OpLabel
|
|
%38 = OpLoad %int %i
|
|
%39 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %38
|
|
%40 = OpLoad %float %39
|
|
%41 = OpLoad %float %s
|
|
%42 = OpFAdd %float %41 %40
|
|
OpStore %s %42
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
%43 = OpLoad %int %i
|
|
%44 = OpIAdd %int %43 %int_1
|
|
OpStore %i %44
|
|
OpBranch %27
|
|
%28 = OpLabel
|
|
%45 = OpLoad %float %s
|
|
OpStore %o %45
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, NoEliminateIfContinue3) {
|
|
// Do not eliminate continue as conditional branch with merge instruction
|
|
// Note: SPIR-V edited to add merge instruction before continue.
|
|
//
|
|
// #version 430
|
|
//
|
|
// layout(std430) buffer U_t
|
|
// {
|
|
// float g_F[10];
|
|
// };
|
|
//
|
|
// layout(location = 0)out float o;
|
|
//
|
|
// void main(void)
|
|
// {
|
|
// float s = 0.0;
|
|
// for (int i=0; i<10; i++) {
|
|
// if (i % 2 == 0) continue;
|
|
// s += g_F[i];
|
|
// }
|
|
// o = s;
|
|
// }
|
|
|
|
const std::string assembly =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %o
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 430
|
|
OpName %main "main"
|
|
OpName %s "s"
|
|
OpName %i "i"
|
|
OpName %U_t "U_t"
|
|
OpMemberName %U_t 0 "g_F"
|
|
OpName %_ ""
|
|
OpName %o "o"
|
|
OpDecorate %_arr_float_uint_10 ArrayStride 4
|
|
OpMemberDecorate %U_t 0 Offset 0
|
|
OpDecorate %U_t BufferBlock
|
|
OpDecorate %_ DescriptorSet 0
|
|
OpDecorate %o Location 0
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_0 = OpConstant %float 0
|
|
%int = OpTypeInt 32 1
|
|
%_ptr_Function_int = OpTypePointer Function %int
|
|
%int_0 = OpConstant %int 0
|
|
%int_10 = OpConstant %int 10
|
|
%bool = OpTypeBool
|
|
%int_2 = OpConstant %int 2
|
|
%uint = OpTypeInt 32 0
|
|
%uint_10 = OpConstant %uint 10
|
|
%_arr_float_uint_10 = OpTypeArray %float %uint_10
|
|
%U_t = OpTypeStruct %_arr_float_uint_10
|
|
%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
|
|
%_ = OpVariable %_ptr_Uniform_U_t Uniform
|
|
%_ptr_Uniform_float = OpTypePointer Uniform %float
|
|
%int_1 = OpConstant %int 1
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%o = OpVariable %_ptr_Output_float Output
|
|
%main = OpFunction %void None %10
|
|
%26 = OpLabel
|
|
%s = OpVariable %_ptr_Function_float Function
|
|
%i = OpVariable %_ptr_Function_int Function
|
|
OpStore %s %float_0
|
|
OpStore %i %int_0
|
|
OpBranch %27
|
|
%27 = OpLabel
|
|
OpLoopMerge %28 %29 None
|
|
OpBranch %30
|
|
%30 = OpLabel
|
|
%31 = OpLoad %int %i
|
|
%32 = OpSLessThan %bool %31 %int_10
|
|
OpBranchConditional %32 %33 %28
|
|
%33 = OpLabel
|
|
%34 = OpLoad %int %i
|
|
%35 = OpSMod %int %34 %int_2
|
|
%36 = OpIEqual %bool %35 %int_0
|
|
OpSelectionMerge %37 None
|
|
OpBranchConditional %36 %29 %37
|
|
%37 = OpLabel
|
|
%38 = OpLoad %int %i
|
|
%39 = OpAccessChain %_ptr_Uniform_float %_ %int_0 %38
|
|
%40 = OpLoad %float %39
|
|
%41 = OpLoad %float %s
|
|
%42 = OpFAdd %float %41 %40
|
|
OpStore %s %42
|
|
OpBranch %29
|
|
%29 = OpLabel
|
|
%43 = OpLoad %int %i
|
|
%44 = OpIAdd %int %43 %int_1
|
|
OpStore %i %44
|
|
OpBranch %27
|
|
%28 = OpLabel
|
|
%45 = OpLoad %float %s
|
|
OpStore %o %45
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(assembly, assembly, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, PointerVariable) {
|
|
// ADCE is able to handle code that contains a load whose base address
|
|
// comes from a load and not an OpVariable. I want to see an instruction
|
|
// removed to be sure that ADCE is not exiting early.
|
|
|
|
const std::string before =
|
|
R"(OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main" %2
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
OpMemberDecorate %_struct_3 0 Offset 0
|
|
OpDecorate %_runtimearr__struct_3 ArrayStride 16
|
|
OpMemberDecorate %_struct_5 0 Offset 0
|
|
OpDecorate %_struct_5 BufferBlock
|
|
OpMemberDecorate %_struct_6 0 Offset 0
|
|
OpDecorate %_struct_6 BufferBlock
|
|
OpDecorate %2 Location 0
|
|
OpDecorate %7 DescriptorSet 0
|
|
OpDecorate %7 Binding 0
|
|
OpDecorate %8 DescriptorSet 0
|
|
OpDecorate %8 Binding 1
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%uint = OpTypeInt 32 0
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%_ptr_Uniform_v4float = OpTypePointer Uniform %v4float
|
|
%_struct_3 = OpTypeStruct %v4float
|
|
%_runtimearr__struct_3 = OpTypeRuntimeArray %_struct_3
|
|
%_struct_5 = OpTypeStruct %_runtimearr__struct_3
|
|
%_ptr_Uniform__struct_5 = OpTypePointer Uniform %_struct_5
|
|
%_struct_6 = OpTypeStruct %int
|
|
%_ptr_Uniform__struct_6 = OpTypePointer Uniform %_struct_6
|
|
%_ptr_Function__ptr_Uniform__struct_5 = OpTypePointer Function %_ptr_Uniform__struct_5
|
|
%_ptr_Function__ptr_Uniform__struct_6 = OpTypePointer Function %_ptr_Uniform__struct_6
|
|
%int_0 = OpConstant %int 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%2 = OpVariable %_ptr_Output_v4float Output
|
|
%7 = OpVariable %_ptr_Uniform__struct_5 Uniform
|
|
%8 = OpVariable %_ptr_Uniform__struct_6 Uniform
|
|
%1 = OpFunction %void None %10
|
|
%23 = OpLabel
|
|
%24 = OpVariable %_ptr_Function__ptr_Uniform__struct_5 Function
|
|
OpStore %24 %7
|
|
%26 = OpLoad %_ptr_Uniform__struct_5 %24
|
|
%27 = OpAccessChain %_ptr_Uniform_v4float %26 %int_0 %uint_0 %int_0
|
|
%28 = OpLoad %v4float %27
|
|
%29 = OpCopyObject %v4float %28
|
|
OpStore %2 %28
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string after =
|
|
R"(OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main" %2
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
OpMemberDecorate %_struct_3 0 Offset 0
|
|
OpDecorate %_runtimearr__struct_3 ArrayStride 16
|
|
OpMemberDecorate %_struct_5 0 Offset 0
|
|
OpDecorate %_struct_5 BufferBlock
|
|
OpDecorate %2 Location 0
|
|
OpDecorate %7 DescriptorSet 0
|
|
OpDecorate %7 Binding 0
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%int = OpTypeInt 32 1
|
|
%uint = OpTypeInt 32 0
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%_ptr_Uniform_v4float = OpTypePointer Uniform %v4float
|
|
%_struct_3 = OpTypeStruct %v4float
|
|
%_runtimearr__struct_3 = OpTypeRuntimeArray %_struct_3
|
|
%_struct_5 = OpTypeStruct %_runtimearr__struct_3
|
|
%_ptr_Uniform__struct_5 = OpTypePointer Uniform %_struct_5
|
|
%_ptr_Function__ptr_Uniform__struct_5 = OpTypePointer Function %_ptr_Uniform__struct_5
|
|
%int_0 = OpConstant %int 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%2 = OpVariable %_ptr_Output_v4float Output
|
|
%7 = OpVariable %_ptr_Uniform__struct_5 Uniform
|
|
%1 = OpFunction %void None %10
|
|
%23 = OpLabel
|
|
%24 = OpVariable %_ptr_Function__ptr_Uniform__struct_5 Function
|
|
OpStore %24 %7
|
|
%25 = OpLoad %_ptr_Uniform__struct_5 %24
|
|
%26 = OpAccessChain %_ptr_Uniform_v4float %25 %int_0 %uint_0 %int_0
|
|
%27 = OpLoad %v4float %26
|
|
OpStore %2 %27
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(before, after, true, true);
|
|
}
|
|
|
|
// %dead is unused. Make sure we remove it along with its name.
|
|
TEST_F(AggressiveDCETest, RemoveUnreferenced) {
|
|
const std::string before =
|
|
R"(OpCapability Shader
|
|
OpCapability Linkage
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 150
|
|
OpName %main "main"
|
|
OpName %dead "dead"
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Private_float = OpTypePointer Private %float
|
|
%dead = OpVariable %_ptr_Private_float Private
|
|
%main = OpFunction %void None %5
|
|
%8 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string after =
|
|
R"(OpCapability Shader
|
|
OpCapability Linkage
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 150
|
|
OpName %main "main"
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%main = OpFunction %void None %5
|
|
%8 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(before, after, true, true);
|
|
}
|
|
|
|
// Delete %dead because it is unreferenced. Then %initializer becomes
|
|
// unreferenced, so remove it as well.
|
|
TEST_F(AggressiveDCETest, RemoveUnreferencedWithInit1) {
|
|
const std::string before =
|
|
R"(OpCapability Shader
|
|
OpCapability Linkage
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 150
|
|
OpName %main "main"
|
|
OpName %dead "dead"
|
|
OpName %initializer "initializer"
|
|
%void = OpTypeVoid
|
|
%6 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Private_float = OpTypePointer Private %float
|
|
%initializer = OpVariable %_ptr_Private_float Private
|
|
%dead = OpVariable %_ptr_Private_float Private %initializer
|
|
%main = OpFunction %void None %6
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string after =
|
|
R"(OpCapability Shader
|
|
OpCapability Linkage
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 150
|
|
OpName %main "main"
|
|
%void = OpTypeVoid
|
|
%6 = OpTypeFunction %void
|
|
%main = OpFunction %void None %6
|
|
%9 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(before, after, true, true);
|
|
}
|
|
|
|
// Keep %live because it is used, and its initializer.
|
|
TEST_F(AggressiveDCETest, KeepReferenced) {
|
|
const std::string before =
|
|
R"(OpCapability Shader
|
|
OpCapability Linkage
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %output
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 150
|
|
OpName %main "main"
|
|
OpName %live "live"
|
|
OpName %initializer "initializer"
|
|
OpName %output "output"
|
|
%void = OpTypeVoid
|
|
%6 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Private_float = OpTypePointer Private %float
|
|
%initializer = OpVariable %_ptr_Private_float Private
|
|
%live = OpVariable %_ptr_Private_float Private %initializer
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%output = OpVariable %_ptr_Output_float Output
|
|
%main = OpFunction %void None %6
|
|
%9 = OpLabel
|
|
%10 = OpLoad %float %live
|
|
OpStore %output %10
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(before, before, true, true);
|
|
}
|
|
|
|
// This test that the decoration associated with a variable are removed when the
|
|
// variable is removed.
|
|
TEST_F(AggressiveDCETest, RemoveVariableAndDecorations) {
|
|
const std::string before =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Vertex %main "main"
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
OpName %B "B"
|
|
OpMemberName %B 0 "a"
|
|
OpName %Bdat "Bdat"
|
|
OpMemberDecorate %B 0 Offset 0
|
|
OpDecorate %B BufferBlock
|
|
OpDecorate %Bdat DescriptorSet 0
|
|
OpDecorate %Bdat Binding 0
|
|
%void = OpTypeVoid
|
|
%6 = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%B = OpTypeStruct %uint
|
|
%_ptr_Uniform_B = OpTypePointer Uniform %B
|
|
%Bdat = OpVariable %_ptr_Uniform_B Uniform
|
|
%int = OpTypeInt 32 1
|
|
%int_0 = OpConstant %int 0
|
|
%uint_1 = OpConstant %uint 1
|
|
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
|
|
%main = OpFunction %void None %6
|
|
%13 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string after =
|
|
R"(OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Vertex %main "main"
|
|
OpSource GLSL 450
|
|
OpName %main "main"
|
|
%void = OpTypeVoid
|
|
%6 = OpTypeFunction %void
|
|
%main = OpFunction %void None %6
|
|
%13 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(before, after, true, true);
|
|
}
|
|
|
|
#ifdef SPIRV_EFFCEE
|
|
TEST_F(AggressiveDCETest, DeadNestedSwitch) {
|
|
const std::string text = R"(
|
|
; CHECK: OpLabel
|
|
; CHECK: OpBranch [[block:%\w+]]
|
|
; CHECK-NOT: OpSwitch
|
|
; CHECK-NEXT: [[block]] = OpLabel
|
|
; CHECK: OpBranch [[block:%\w+]]
|
|
; CHECK-NOT: OpSwitch
|
|
; CHECK-NEXT: [[block]] = OpLabel
|
|
; CHECK-NEXT: OpStore
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %func "func" %x
|
|
OpExecutionMode %func OriginUpperLeft
|
|
OpName %func "func"
|
|
%void = OpTypeVoid
|
|
%1 = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%uint_ptr_Output = OpTypePointer Output %uint
|
|
%uint_ptr_Input = OpTypePointer Input %uint
|
|
%x = OpVariable %uint_ptr_Output Output
|
|
%a = OpVariable %uint_ptr_Input Input
|
|
%func = OpFunction %void None %1
|
|
%entry = OpLabel
|
|
OpBranch %header
|
|
%header = OpLabel
|
|
%ld = OpLoad %uint %a
|
|
OpLoopMerge %merge %continue None
|
|
OpBranch %postheader
|
|
%postheader = OpLabel
|
|
; This switch doesn't require an OpSelectionMerge and is nested in the dead loop.
|
|
OpSwitch %ld %merge 0 %extra 1 %continue
|
|
%extra = OpLabel
|
|
OpBranch %continue
|
|
%continue = OpLabel
|
|
OpBranch %header
|
|
%merge = OpLabel
|
|
OpStore %x %uint_0
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
#endif // SPIRV_EFFCEE
|
|
|
|
TEST_F(AggressiveDCETest, LiveNestedSwitch) {
|
|
const std::string text = R"(OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %func "func" %3
|
|
OpExecutionMode %func OriginUpperLeft
|
|
OpName %func "func"
|
|
%void = OpTypeVoid
|
|
%1 = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%uint_0 = OpConstant %uint 0
|
|
%uint_1 = OpConstant %uint 1
|
|
%_ptr_Output_uint = OpTypePointer Output %uint
|
|
%_ptr_Input_uint = OpTypePointer Input %uint
|
|
%3 = OpVariable %_ptr_Output_uint Output
|
|
%10 = OpVariable %_ptr_Input_uint Input
|
|
%func = OpFunction %void None %1
|
|
%11 = OpLabel
|
|
OpBranch %12
|
|
%12 = OpLabel
|
|
%13 = OpLoad %uint %10
|
|
OpLoopMerge %14 %15 None
|
|
OpBranch %16
|
|
%16 = OpLabel
|
|
OpSwitch %13 %14 0 %17 1 %15
|
|
%17 = OpLabel
|
|
OpStore %3 %uint_1
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
OpBranch %12
|
|
%14 = OpLabel
|
|
OpStore %3 %uint_0
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(text, text, false, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, BasicDeleteDeadFunction) {
|
|
// The function Dead should be removed because it is never called.
|
|
const std::vector<const char*> common_code = {
|
|
// clang-format off
|
|
"OpCapability Shader",
|
|
"OpMemoryModel Logical GLSL450",
|
|
"OpEntryPoint Fragment %main \"main\"",
|
|
"OpName %main \"main\"",
|
|
"OpName %Live \"Live\"",
|
|
"%void = OpTypeVoid",
|
|
"%7 = OpTypeFunction %void",
|
|
"%main = OpFunction %void None %7",
|
|
"%15 = OpLabel",
|
|
"%16 = OpFunctionCall %void %Live",
|
|
"%17 = OpFunctionCall %void %Live",
|
|
"OpReturn",
|
|
"OpFunctionEnd",
|
|
"%Live = OpFunction %void None %7",
|
|
"%20 = OpLabel",
|
|
"OpReturn",
|
|
"OpFunctionEnd"
|
|
// clang-format on
|
|
};
|
|
|
|
const std::vector<const char*> dead_function = {
|
|
// clang-format off
|
|
"%Dead = OpFunction %void None %7",
|
|
"%19 = OpLabel",
|
|
"OpReturn",
|
|
"OpFunctionEnd",
|
|
// clang-format on
|
|
};
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
JoinAllInsts(Concat(common_code, dead_function)),
|
|
JoinAllInsts(common_code), /* skip_nop = */ true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, BasicKeepLiveFunction) {
|
|
// Everything is reachable from an entry point, so no functions should be
|
|
// deleted.
|
|
const std::vector<const char*> text = {
|
|
// clang-format off
|
|
"OpCapability Shader",
|
|
"OpMemoryModel Logical GLSL450",
|
|
"OpEntryPoint Fragment %main \"main\"",
|
|
"OpName %main \"main\"",
|
|
"OpName %Live1 \"Live1\"",
|
|
"OpName %Live2 \"Live2\"",
|
|
"%void = OpTypeVoid",
|
|
"%7 = OpTypeFunction %void",
|
|
"%main = OpFunction %void None %7",
|
|
"%15 = OpLabel",
|
|
"%16 = OpFunctionCall %void %Live2",
|
|
"%17 = OpFunctionCall %void %Live1",
|
|
"OpReturn",
|
|
"OpFunctionEnd",
|
|
"%Live1 = OpFunction %void None %7",
|
|
"%19 = OpLabel",
|
|
"OpReturn",
|
|
"OpFunctionEnd",
|
|
"%Live2 = OpFunction %void None %7",
|
|
"%20 = OpLabel",
|
|
"OpReturn",
|
|
"OpFunctionEnd"
|
|
// clang-format on
|
|
};
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
std::string assembly = JoinAllInsts(text);
|
|
auto result = SinglePassRunAndDisassemble<opt::AggressiveDCEPass>(
|
|
assembly, /* skip_nop = */ true, /* do_validation = */ false);
|
|
EXPECT_EQ(opt::Pass::Status::SuccessWithoutChange, std::get<1>(result));
|
|
EXPECT_EQ(assembly, std::get<0>(result));
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, BasicRemoveDecorationsAndNames) {
|
|
// We want to remove the names and decorations associated with results that
|
|
// are removed. This test will check for that.
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Vertex %main "main"
|
|
OpName %main "main"
|
|
OpName %Dead "Dead"
|
|
OpName %x "x"
|
|
OpName %y "y"
|
|
OpName %z "z"
|
|
OpDecorate %x RelaxedPrecision
|
|
OpDecorate %y RelaxedPrecision
|
|
OpDecorate %z RelaxedPrecision
|
|
OpDecorate %6 RelaxedPrecision
|
|
OpDecorate %7 RelaxedPrecision
|
|
OpDecorate %8 RelaxedPrecision
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%float_1 = OpConstant %float 1
|
|
%main = OpFunction %void None %10
|
|
%14 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%Dead = OpFunction %void None %10
|
|
%15 = OpLabel
|
|
%x = OpVariable %_ptr_Function_float Function
|
|
%y = OpVariable %_ptr_Function_float Function
|
|
%z = OpVariable %_ptr_Function_float Function
|
|
OpStore %x %float_1
|
|
OpStore %y %float_1
|
|
%6 = OpLoad %float %x
|
|
%7 = OpLoad %float %y
|
|
%8 = OpFAdd %float %6 %7
|
|
OpStore %z %8
|
|
OpReturn
|
|
OpFunctionEnd)";
|
|
|
|
const std::string expected_output = R"(OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Vertex %main "main"
|
|
OpName %main "main"
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%main = OpFunction %void None %10
|
|
%14 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(text, expected_output,
|
|
/* skip_nop = */ true);
|
|
}
|
|
|
|
#ifdef SPIRV_EFFCEE
|
|
TEST_F(AggressiveDCETest, BasicAllDeadConstants) {
|
|
const std::string text = R"(
|
|
; CHECK-NOT: OpConstant
|
|
OpCapability Shader
|
|
OpCapability Float64
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Vertex %main "main"
|
|
OpName %main "main"
|
|
%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%false = OpConstantFalse %bool
|
|
%int = OpTypeInt 32 1
|
|
%9 = OpConstant %int 1
|
|
%uint = OpTypeInt 32 0
|
|
%11 = OpConstant %uint 2
|
|
%float = OpTypeFloat 32
|
|
%13 = OpConstant %float 3.1415
|
|
%double = OpTypeFloat 64
|
|
%15 = OpConstant %double 3.14159265358979
|
|
%main = OpFunction %void None %4
|
|
%16 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
#endif // SPIRV_EFFCEE
|
|
|
|
TEST_F(AggressiveDCETest, BasicNoneDeadConstants) {
|
|
const std::vector<const char*> text = {
|
|
// clang-format off
|
|
"OpCapability Shader",
|
|
"OpCapability Float64",
|
|
"%1 = OpExtInstImport \"GLSL.std.450\"",
|
|
"OpMemoryModel Logical GLSL450",
|
|
"OpEntryPoint Vertex %main \"main\" %btv %bfv %iv %uv %fv %dv",
|
|
"OpName %main \"main\"",
|
|
"OpName %btv \"btv\"",
|
|
"OpName %bfv \"bfv\"",
|
|
"OpName %iv \"iv\"",
|
|
"OpName %uv \"uv\"",
|
|
"OpName %fv \"fv\"",
|
|
"OpName %dv \"dv\"",
|
|
"%void = OpTypeVoid",
|
|
"%10 = OpTypeFunction %void",
|
|
"%bool = OpTypeBool",
|
|
"%_ptr_Output_bool = OpTypePointer Output %bool",
|
|
"%true = OpConstantTrue %bool",
|
|
"%false = OpConstantFalse %bool",
|
|
"%int = OpTypeInt 32 1",
|
|
"%_ptr_Output_int = OpTypePointer Output %int",
|
|
"%int_1 = OpConstant %int 1",
|
|
"%uint = OpTypeInt 32 0",
|
|
"%_ptr_Output_uint = OpTypePointer Output %uint",
|
|
"%uint_2 = OpConstant %uint 2",
|
|
"%float = OpTypeFloat 32",
|
|
"%_ptr_Output_float = OpTypePointer Output %float",
|
|
"%float_3_1415 = OpConstant %float 3.1415",
|
|
"%double = OpTypeFloat 64",
|
|
"%_ptr_Output_double = OpTypePointer Output %double",
|
|
"%double_3_14159265358979 = OpConstant %double 3.14159265358979",
|
|
"%btv = OpVariable %_ptr_Output_bool Output",
|
|
"%bfv = OpVariable %_ptr_Output_bool Output",
|
|
"%iv = OpVariable %_ptr_Output_int Output",
|
|
"%uv = OpVariable %_ptr_Output_uint Output",
|
|
"%fv = OpVariable %_ptr_Output_float Output",
|
|
"%dv = OpVariable %_ptr_Output_double Output",
|
|
"%main = OpFunction %void None %10",
|
|
"%27 = OpLabel",
|
|
"OpStore %btv %true",
|
|
"OpStore %bfv %false",
|
|
"OpStore %iv %int_1",
|
|
"OpStore %uv %uint_2",
|
|
"OpStore %fv %float_3_1415",
|
|
"OpStore %dv %double_3_14159265358979",
|
|
"OpReturn",
|
|
"OpFunctionEnd",
|
|
// clang-format on
|
|
};
|
|
// All constants are used, so none of them should be eliminated.
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
JoinAllInsts(text), JoinAllInsts(text), /* skip_nop = */ true);
|
|
}
|
|
|
|
struct EliminateDeadConstantTestCase {
|
|
// Type declarations and constants that should be kept.
|
|
std::vector<std::string> used_consts;
|
|
// Instructions that refer to constants, this is added to create uses for
|
|
// some constants so they won't be treated as dead constants.
|
|
std::vector<std::string> main_insts;
|
|
// Dead constants that should be removed.
|
|
std::vector<std::string> dead_consts;
|
|
// Expectations
|
|
std::vector<std::string> checks;
|
|
};
|
|
|
|
// All types that are potentially required in EliminateDeadConstantTest.
|
|
const std::vector<std::string> CommonTypes = {
|
|
// clang-format off
|
|
// scalar types
|
|
"%bool = OpTypeBool",
|
|
"%uint = OpTypeInt 32 0",
|
|
"%int = OpTypeInt 32 1",
|
|
"%float = OpTypeFloat 32",
|
|
"%double = OpTypeFloat 64",
|
|
// vector types
|
|
"%v2bool = OpTypeVector %bool 2",
|
|
"%v2uint = OpTypeVector %uint 2",
|
|
"%v2int = OpTypeVector %int 2",
|
|
"%v3int = OpTypeVector %int 3",
|
|
"%v4int = OpTypeVector %int 4",
|
|
"%v2float = OpTypeVector %float 2",
|
|
"%v3float = OpTypeVector %float 3",
|
|
"%v2double = OpTypeVector %double 2",
|
|
// variable pointer types
|
|
"%_pf_bool = OpTypePointer Output %bool",
|
|
"%_pf_uint = OpTypePointer Output %uint",
|
|
"%_pf_int = OpTypePointer Output %int",
|
|
"%_pf_float = OpTypePointer Output %float",
|
|
"%_pf_double = OpTypePointer Output %double",
|
|
"%_pf_v2int = OpTypePointer Output %v2int",
|
|
"%_pf_v3int = OpTypePointer Output %v3int",
|
|
"%_pf_v2float = OpTypePointer Output %v2float",
|
|
"%_pf_v3float = OpTypePointer Output %v3float",
|
|
"%_pf_v2double = OpTypePointer Output %v2double",
|
|
// struct types
|
|
"%inner_struct = OpTypeStruct %bool %int %float %double",
|
|
"%outer_struct = OpTypeStruct %inner_struct %int %double",
|
|
"%flat_struct = OpTypeStruct %bool %int %float %double",
|
|
// clang-format on
|
|
};
|
|
|
|
using EliminateDeadConstantTest =
|
|
PassTest<::testing::TestWithParam<EliminateDeadConstantTestCase>>;
|
|
|
|
#ifdef SPIRV_EFFCEE
|
|
TEST_P(EliminateDeadConstantTest, Custom) {
|
|
auto& tc = GetParam();
|
|
AssemblyBuilder builder;
|
|
builder.AppendTypesConstantsGlobals(CommonTypes)
|
|
.AppendTypesConstantsGlobals(tc.used_consts)
|
|
.AppendInMain(tc.main_insts);
|
|
const std::string expected = builder.GetCode();
|
|
builder.AppendTypesConstantsGlobals(tc.dead_consts);
|
|
builder.PrependPreamble(tc.checks);
|
|
const std::string assembly_with_dead_const = builder.GetCode();
|
|
|
|
// Do not enable validation. As the input code is invalid from the base
|
|
// tests (ported from other passes).
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(assembly_with_dead_const,
|
|
false);
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
ScalarTypeConstants, EliminateDeadConstantTest,
|
|
::testing::ValuesIn(std::vector<EliminateDeadConstantTestCase>({
|
|
// clang-format off
|
|
// Scalar type constants, one dead constant and one used constant.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_const_int = OpConstant %int 1",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%int_var = OpVariable %_pf_int Output",
|
|
"OpStore %int_var %used_const_int",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_const_int = OpConstant %int 1",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[const:%\\w+]] = OpConstant %int 1",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[const]]",
|
|
},
|
|
},
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_const_uint = OpConstant %uint 1",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%uint_var = OpVariable %_pf_uint Output",
|
|
"OpStore %uint_var %used_const_uint",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_const_uint = OpConstant %uint 1",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[const:%\\w+]] = OpConstant %uint 1",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[const]]",
|
|
},
|
|
},
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_const_float = OpConstant %float 3.1415",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%float_var = OpVariable %_pf_float Output",
|
|
"OpStore %float_var %used_const_float",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_const_float = OpConstant %float 3.1415",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[const:%\\w+]] = OpConstant %float 3.1415",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[const]]",
|
|
},
|
|
},
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_const_double = OpConstant %double 3.14",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%double_var = OpVariable %_pf_double Output",
|
|
"OpStore %double_var %used_const_double",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_const_double = OpConstant %double 3.14",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[const:%\\w+]] = OpConstant %double 3.14",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[const]]",
|
|
},
|
|
},
|
|
// clang-format on
|
|
})));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
VectorTypeConstants, EliminateDeadConstantTest,
|
|
::testing::ValuesIn(std::vector<EliminateDeadConstantTestCase>({
|
|
// clang-format off
|
|
// Tests eliminating dead constant type ivec2. One dead constant vector
|
|
// and one used constant vector, each built from its own group of
|
|
// scalar constants.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_int_x = OpConstant %int 1",
|
|
"%used_int_y = OpConstant %int 2",
|
|
"%used_v2int = OpConstantComposite %v2int %used_int_x %used_int_y",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%v2int_var = OpVariable %_pf_v2int Output",
|
|
"OpStore %v2int_var %used_v2int",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_int_x = OpConstant %int 1",
|
|
"%dead_int_y = OpConstant %int 2",
|
|
"%dead_v2int = OpConstantComposite %v2int %dead_int_x %dead_int_y",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[constx:%\\w+]] = OpConstant %int 1",
|
|
"; CHECK: [[consty:%\\w+]] = OpConstant %int 2",
|
|
"; CHECK: [[const:%\\w+]] = OpConstantComposite %v2int [[constx]] [[consty]]",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[const]]",
|
|
},
|
|
},
|
|
// Tests eliminating dead constant ivec3. One dead constant vector and
|
|
// one used constant vector. But both built from a same group of
|
|
// scalar constants.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_int_x = OpConstant %int 1",
|
|
"%used_int_y = OpConstant %int 2",
|
|
"%used_int_z = OpConstant %int 3",
|
|
"%used_v3int = OpConstantComposite %v3int %used_int_x %used_int_y %used_int_z",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%v3int_var = OpVariable %_pf_v3int Output",
|
|
"OpStore %v3int_var %used_v3int",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_v3int = OpConstantComposite %v3int %used_int_x %used_int_y %used_int_z",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[constx:%\\w+]] = OpConstant %int 1",
|
|
"; CHECK: [[consty:%\\w+]] = OpConstant %int 2",
|
|
"; CHECK: [[constz:%\\w+]] = OpConstant %int 3",
|
|
"; CHECK: [[const:%\\w+]] = OpConstantComposite %v3int [[constx]] [[consty]] [[constz]]",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[const]]",
|
|
},
|
|
},
|
|
// Tests eliminating dead constant vec2. One dead constant vector and
|
|
// one used constant vector. Each built from its own group of scalar
|
|
// constants.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_float_x = OpConstant %float 3.1415",
|
|
"%used_float_y = OpConstant %float 4.13",
|
|
"%used_v2float = OpConstantComposite %v2float %used_float_x %used_float_y",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%v2float_var = OpVariable %_pf_v2float Output",
|
|
"OpStore %v2float_var %used_v2float",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_float_x = OpConstant %float 3.1415",
|
|
"%dead_float_y = OpConstant %float 4.13",
|
|
"%dead_v2float = OpConstantComposite %v2float %dead_float_x %dead_float_y",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[constx:%\\w+]] = OpConstant %float 3.1415",
|
|
"; CHECK: [[consty:%\\w+]] = OpConstant %float 4.13",
|
|
"; CHECK: [[const:%\\w+]] = OpConstantComposite %v2float [[constx]] [[consty]]",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[const]]",
|
|
},
|
|
},
|
|
// Tests eliminating dead constant vec3. One dead constant vector and
|
|
// one used constant vector. Both built from a same group of scalar
|
|
// constants.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_float_x = OpConstant %float 3.1415",
|
|
"%used_float_y = OpConstant %float 4.25",
|
|
"%used_float_z = OpConstant %float 4.75",
|
|
"%used_v3float = OpConstantComposite %v3float %used_float_x %used_float_y %used_float_z",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%v3float_var = OpVariable %_pf_v3float Output",
|
|
"OpStore %v3float_var %used_v3float",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_v3float = OpConstantComposite %v3float %used_float_x %used_float_y %used_float_z",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[constx:%\\w+]] = OpConstant %float 3.1415",
|
|
"; CHECK: [[consty:%\\w+]] = OpConstant %float 4.25",
|
|
"; CHECK: [[constz:%\\w+]] = OpConstant %float 4.75",
|
|
"; CHECK: [[const:%\\w+]] = OpConstantComposite %v3float [[constx]] [[consty]]",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[const]]",
|
|
},
|
|
},
|
|
// clang-format on
|
|
})));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
StructTypeConstants, EliminateDeadConstantTest,
|
|
::testing::ValuesIn(std::vector<EliminateDeadConstantTestCase>({
|
|
// clang-format off
|
|
// A plain struct type dead constants. All of its components are dead
|
|
// constants too.
|
|
{
|
|
/* .used_consts = */ {},
|
|
/* .main_insts = */ {},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_bool = OpConstantTrue %bool",
|
|
"%dead_int = OpConstant %int 1",
|
|
"%dead_float = OpConstant %float 2.5",
|
|
"%dead_double = OpConstant %double 3.14159265358979",
|
|
"%dead_struct = OpConstantComposite %flat_struct %dead_bool %dead_int %dead_float %dead_double",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK-NOT: OpConstant",
|
|
},
|
|
},
|
|
// A plain struct type dead constants. Some of its components are dead
|
|
// constants while others are not.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_int = OpConstant %int 1",
|
|
"%used_double = OpConstant %double 3.14159265358979",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%int_var = OpVariable %_pf_int Output",
|
|
"OpStore %int_var %used_int",
|
|
"%double_var = OpVariable %_pf_double Output",
|
|
"OpStore %double_var %used_double",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_bool = OpConstantTrue %bool",
|
|
"%dead_float = OpConstant %float 2.5",
|
|
"%dead_struct = OpConstantComposite %flat_struct %dead_bool %used_int %dead_float %used_double",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[int:%\\w+]] = OpConstant %int 1",
|
|
"; CHECK: [[double:%\\w+]] = OpConstant %double 3.14159265358979",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[int]]",
|
|
"; CHECK: OpStore {{%\\w+}} [[double]]",
|
|
},
|
|
},
|
|
// A nesting struct type dead constants. All components of both outer
|
|
// and inner structs are dead and should be removed after dead constant
|
|
// elimination.
|
|
{
|
|
/* .used_consts = */ {},
|
|
/* .main_insts = */ {},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_bool = OpConstantTrue %bool",
|
|
"%dead_int = OpConstant %int 1",
|
|
"%dead_float = OpConstant %float 2.5",
|
|
"%dead_double = OpConstant %double 3.1415926535",
|
|
"%dead_inner_struct = OpConstantComposite %inner_struct %dead_bool %dead_int %dead_float %dead_double",
|
|
"%dead_int2 = OpConstant %int 2",
|
|
"%dead_double2 = OpConstant %double 1.428571428514",
|
|
"%dead_outer_struct = OpConstantComposite %outer_struct %dead_inner_struct %dead_int2 %dead_double2",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK-NOT: OpConstant",
|
|
},
|
|
},
|
|
// A nesting struct type dead constants. Some of its components are
|
|
// dead constants while others are not.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_int = OpConstant %int 1",
|
|
"%used_double = OpConstant %double 3.14159265358979",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%int_var = OpVariable %_pf_int Output",
|
|
"OpStore %int_var %used_int",
|
|
"%double_var = OpVariable %_pf_double Output",
|
|
"OpStore %double_var %used_double",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_bool = OpConstantTrue %bool",
|
|
"%dead_float = OpConstant %float 2.5",
|
|
"%dead_inner_struct = OpConstantComposite %inner_struct %dead_bool %used_int %dead_float %used_double",
|
|
"%dead_int = OpConstant %int 2",
|
|
"%dead_outer_struct = OpConstantComposite %outer_struct %dead_inner_struct %dead_int %used_double",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[int:%\\w+]] = OpConstant %int 1",
|
|
"; CHECK: [[double:%\\w+]] = OpConstant %double 3.14159265358979",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[int]]",
|
|
"; CHECK: OpStore {{%\\w+}} [[double]]",
|
|
},
|
|
},
|
|
// A nesting struct case. The inner struct is used while the outer struct is not
|
|
{
|
|
/* .used_const = */
|
|
{
|
|
"%used_bool = OpConstantTrue %bool",
|
|
"%used_int = OpConstant %int 1",
|
|
"%used_float = OpConstant %float 1.23",
|
|
"%used_double = OpConstant %double 1.2345678901234",
|
|
"%used_inner_struct = OpConstantComposite %inner_struct %used_bool %used_int %used_float %used_double",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%bool_var = OpVariable %_pf_bool Output",
|
|
"%bool_from_inner_struct = OpCompositeExtract %bool %used_inner_struct 0",
|
|
"OpStore %bool_var %bool_from_inner_struct",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_int = OpConstant %int 2",
|
|
"%dead_outer_struct = OpConstantComposite %outer_struct %used_inner_struct %dead_int %used_double"
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[bool:%\\w+]] = OpConstantTrue",
|
|
"; CHECK: [[int:%\\w+]] = OpConstant %int 1",
|
|
"; CHECK: [[float:%\\w+]] = OpConstant %float 1.23",
|
|
"; CHECK: [[double:%\\w+]] = OpConstant %double 1.2345678901234",
|
|
"; CHECK: [[struct:%\\w+]] = OpConstantComposite %inner_struct [[bool]] [[int]] [[float]] [[double]]",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpCompositeExtract %bool [[struct]]",
|
|
}
|
|
},
|
|
// A nesting struct case. The outer struct is used, so the inner struct should not
|
|
// be removed even though it is not used anywhere.
|
|
{
|
|
/* .used_const = */
|
|
{
|
|
"%used_bool = OpConstantTrue %bool",
|
|
"%used_int = OpConstant %int 1",
|
|
"%used_float = OpConstant %float 1.23",
|
|
"%used_double = OpConstant %double 1.2345678901234",
|
|
"%used_inner_struct = OpConstantComposite %inner_struct %used_bool %used_int %used_float %used_double",
|
|
"%used_outer_struct = OpConstantComposite %outer_struct %used_inner_struct %used_int %used_double"
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%int_var = OpVariable %_pf_int Output",
|
|
"%int_from_outer_struct = OpCompositeExtract %int %used_outer_struct 1",
|
|
"OpStore %int_var %int_from_outer_struct",
|
|
},
|
|
/* .dead_consts = */ {},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[bool:%\\w+]] = OpConstantTrue %bool",
|
|
"; CHECK: [[int:%\\w+]] = OpConstant %int 1",
|
|
"; CHECK: [[float:%\\w+]] = OpConstant %float 1.23",
|
|
"; CHECK: [[double:%\\w+]] = OpConstant %double 1.2345678901234",
|
|
"; CHECK: [[inner_struct:%\\w+]] = OpConstantComposite %inner_struct %used_bool %used_int %used_float %used_double",
|
|
"; CHECK: [[outer_struct:%\\w+]] = OpConstantComposite %outer_struct %used_inner_struct %used_int %used_double",
|
|
"; CHECK: OpCompositeExtract %int [[outer_struct]]",
|
|
},
|
|
},
|
|
// clang-format on
|
|
})));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
ScalarTypeSpecConstants, EliminateDeadConstantTest,
|
|
::testing::ValuesIn(std::vector<EliminateDeadConstantTestCase>({
|
|
// clang-format off
|
|
// All scalar type spec constants.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_bool = OpSpecConstantTrue %bool",
|
|
"%used_uint = OpSpecConstant %uint 2",
|
|
"%used_int = OpSpecConstant %int 2",
|
|
"%used_float = OpSpecConstant %float 2.5",
|
|
"%used_double = OpSpecConstant %double 1.428571428514",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%bool_var = OpVariable %_pf_bool Output",
|
|
"%uint_var = OpVariable %_pf_uint Output",
|
|
"%int_var = OpVariable %_pf_int Output",
|
|
"%float_var = OpVariable %_pf_float Output",
|
|
"%double_var = OpVariable %_pf_double Output",
|
|
"OpStore %bool_var %used_bool",
|
|
"OpStore %uint_var %used_uint",
|
|
"OpStore %int_var %used_int",
|
|
"OpStore %float_var %used_float",
|
|
"OpStore %double_var %used_double",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_bool = OpSpecConstantTrue %bool",
|
|
"%dead_uint = OpSpecConstant %uint 2",
|
|
"%dead_int = OpSpecConstant %int 2",
|
|
"%dead_float = OpSpecConstant %float 2.5",
|
|
"%dead_double = OpSpecConstant %double 1.428571428514",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[bool:%\\w+]] = OpSpecConstantTrue %bool",
|
|
"; CHECK: [[uint:%\\w+]] = OpSpecConstant %uint 2",
|
|
"; CHECK: [[int:%\\w+]] = OpSpecConstant %int 2",
|
|
"; CHECK: [[float:%\\w+]] = OpSpecConstant %float 2.5",
|
|
"; CHECK: [[double:%\\w+]] = OpSpecConstant %double 1.428571428514",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[bool]]",
|
|
"; CHECK: OpStore {{%\\w+}} [[uint]]",
|
|
"; CHECK: OpStore {{%\\w+}} [[int]]",
|
|
"; CHECK: OpStore {{%\\w+}} [[float]]",
|
|
"; CHECK: OpStore {{%\\w+}} [[double]]",
|
|
},
|
|
},
|
|
// clang-format on
|
|
})));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
VectorTypeSpecConstants, EliminateDeadConstantTest,
|
|
::testing::ValuesIn(std::vector<EliminateDeadConstantTestCase>({
|
|
// clang-format off
|
|
// Bool vector type spec constants. One vector has all component dead,
|
|
// another vector has one dead boolean and one used boolean.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_bool = OpSpecConstantTrue %bool",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%bool_var = OpVariable %_pf_bool Output",
|
|
"OpStore %bool_var %used_bool",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_bool = OpSpecConstantFalse %bool",
|
|
"%dead_bool_vec1 = OpSpecConstantComposite %v2bool %dead_bool %dead_bool",
|
|
"%dead_bool_vec2 = OpSpecConstantComposite %v2bool %dead_bool %used_bool",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[bool:%\\w+]] = OpSpecConstantTrue %bool",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[bool]]",
|
|
},
|
|
},
|
|
|
|
// Uint vector type spec constants. One vector has all component dead,
|
|
// another vector has one dead unsigend integer and one used unsigned
|
|
// integer.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_uint = OpSpecConstant %uint 3",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%uint_var = OpVariable %_pf_uint Output",
|
|
"OpStore %uint_var %used_uint",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_uint = OpSpecConstant %uint 1",
|
|
"%dead_uint_vec1 = OpSpecConstantComposite %v2uint %dead_uint %dead_uint",
|
|
"%dead_uint_vec2 = OpSpecConstantComposite %v2uint %dead_uint %used_uint",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[uint:%\\w+]] = OpSpecConstant %uint 3",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[uint]]",
|
|
},
|
|
},
|
|
|
|
// Int vector type spec constants. One vector has all component dead,
|
|
// another vector has one dead integer and one used integer.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_int = OpSpecConstant %int 3",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%int_var = OpVariable %_pf_int Output",
|
|
"OpStore %int_var %used_int",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_int = OpSpecConstant %int 1",
|
|
"%dead_int_vec1 = OpSpecConstantComposite %v2int %dead_int %dead_int",
|
|
"%dead_int_vec2 = OpSpecConstantComposite %v2int %dead_int %used_int",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[int:%\\w+]] = OpSpecConstant %int 3",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[int]]",
|
|
},
|
|
},
|
|
|
|
// Int vector type spec constants built with both spec constants and
|
|
// front-end constants.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_spec_int = OpSpecConstant %int 3",
|
|
"%used_front_end_int = OpConstant %int 3",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%int_var1 = OpVariable %_pf_int Output",
|
|
"OpStore %int_var1 %used_spec_int",
|
|
"%int_var2 = OpVariable %_pf_int Output",
|
|
"OpStore %int_var2 %used_front_end_int",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_spec_int = OpSpecConstant %int 1",
|
|
"%dead_front_end_int = OpConstant %int 1",
|
|
// Dead front-end and dead spec constants
|
|
"%dead_int_vec1 = OpSpecConstantComposite %v2int %dead_spec_int %dead_front_end_int",
|
|
// Used front-end and dead spec constants
|
|
"%dead_int_vec2 = OpSpecConstantComposite %v2int %dead_spec_int %used_front_end_int",
|
|
// Dead front-end and used spec constants
|
|
"%dead_int_vec3 = OpSpecConstantComposite %v2int %dead_front_end_int %used_spec_int",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[int1:%\\w+]] = OpSpecConstant %int 3",
|
|
"; CHECK: [[int2:%\\w+]] = OpConstant %int 3",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[int1]]",
|
|
"; CHECK: OpStore {{%\\w+}} [[int2]]",
|
|
},
|
|
},
|
|
// clang-format on
|
|
})));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
SpecConstantOp, EliminateDeadConstantTest,
|
|
::testing::ValuesIn(std::vector<EliminateDeadConstantTestCase>({
|
|
// clang-format off
|
|
// Cast operations: uint <-> int <-> bool
|
|
{
|
|
/* .used_consts = */ {},
|
|
/* .main_insts = */ {},
|
|
/* .dead_consts = */
|
|
{
|
|
// Assistant constants, only used in dead spec constant
|
|
// operations.
|
|
"%signed_zero = OpConstant %int 0",
|
|
"%signed_zero_vec = OpConstantComposite %v2int %signed_zero %signed_zero",
|
|
"%unsigned_zero = OpConstant %uint 0",
|
|
"%unsigned_zero_vec = OpConstantComposite %v2uint %unsigned_zero %unsigned_zero",
|
|
"%signed_one = OpConstant %int 1",
|
|
"%signed_one_vec = OpConstantComposite %v2int %signed_one %signed_one",
|
|
"%unsigned_one = OpConstant %uint 1",
|
|
"%unsigned_one_vec = OpConstantComposite %v2uint %unsigned_one %unsigned_one",
|
|
|
|
// Spec constants that support casting to each other.
|
|
"%dead_bool = OpSpecConstantTrue %bool",
|
|
"%dead_uint = OpSpecConstant %uint 1",
|
|
"%dead_int = OpSpecConstant %int 2",
|
|
"%dead_bool_vec = OpSpecConstantComposite %v2bool %dead_bool %dead_bool",
|
|
"%dead_uint_vec = OpSpecConstantComposite %v2uint %dead_uint %dead_uint",
|
|
"%dead_int_vec = OpSpecConstantComposite %v2int %dead_int %dead_int",
|
|
|
|
// Scalar cast to boolean spec constant.
|
|
"%int_to_bool = OpSpecConstantOp %bool INotEqual %dead_int %signed_zero",
|
|
"%uint_to_bool = OpSpecConstantOp %bool INotEqual %dead_uint %unsigned_zero",
|
|
|
|
// Vector cast to boolean spec constant.
|
|
"%int_to_bool_vec = OpSpecConstantOp %v2bool INotEqual %dead_int_vec %signed_zero_vec",
|
|
"%uint_to_bool_vec = OpSpecConstantOp %v2bool INotEqual %dead_uint_vec %unsigned_zero_vec",
|
|
|
|
// Scalar cast to int spec constant.
|
|
"%bool_to_int = OpSpecConstantOp %int Select %dead_bool %signed_one %signed_zero",
|
|
"%uint_to_int = OpSpecConstantOp %uint IAdd %dead_uint %unsigned_zero",
|
|
|
|
// Vector cast to int spec constant.
|
|
"%bool_to_int_vec = OpSpecConstantOp %v2int Select %dead_bool_vec %signed_one_vec %signed_zero_vec",
|
|
"%uint_to_int_vec = OpSpecConstantOp %v2uint IAdd %dead_uint_vec %unsigned_zero_vec",
|
|
|
|
// Scalar cast to uint spec constant.
|
|
"%bool_to_uint = OpSpecConstantOp %uint Select %dead_bool %unsigned_one %unsigned_zero",
|
|
"%int_to_uint_vec = OpSpecConstantOp %uint IAdd %dead_int %signed_zero",
|
|
|
|
// Vector cast to uint spec constant.
|
|
"%bool_to_uint_vec = OpSpecConstantOp %v2uint Select %dead_bool_vec %unsigned_one_vec %unsigned_zero_vec",
|
|
"%int_to_uint = OpSpecConstantOp %v2uint IAdd %dead_int_vec %signed_zero_vec",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
},
|
|
},
|
|
|
|
// Add, sub, mul, div, rem.
|
|
{
|
|
/* .used_consts = */ {},
|
|
/* .main_insts = */ {},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_spec_int_a = OpSpecConstant %int 1",
|
|
"%dead_spec_int_a_vec = OpSpecConstantComposite %v2int %dead_spec_int_a %dead_spec_int_a",
|
|
|
|
"%dead_spec_int_b = OpSpecConstant %int 2",
|
|
"%dead_spec_int_b_vec = OpSpecConstantComposite %v2int %dead_spec_int_b %dead_spec_int_b",
|
|
|
|
"%dead_const_int_c = OpConstant %int 3",
|
|
"%dead_const_int_c_vec = OpConstantComposite %v2int %dead_const_int_c %dead_const_int_c",
|
|
|
|
// Add
|
|
"%add_a_b = OpSpecConstantOp %int IAdd %dead_spec_int_a %dead_spec_int_b",
|
|
"%add_a_b_vec = OpSpecConstantOp %v2int IAdd %dead_spec_int_a_vec %dead_spec_int_b_vec",
|
|
|
|
// Sub
|
|
"%sub_a_b = OpSpecConstantOp %int ISub %dead_spec_int_a %dead_spec_int_b",
|
|
"%sub_a_b_vec = OpSpecConstantOp %v2int ISub %dead_spec_int_a_vec %dead_spec_int_b_vec",
|
|
|
|
// Mul
|
|
"%mul_a_b = OpSpecConstantOp %int IMul %dead_spec_int_a %dead_spec_int_b",
|
|
"%mul_a_b_vec = OpSpecConstantOp %v2int IMul %dead_spec_int_a_vec %dead_spec_int_b_vec",
|
|
|
|
// Div
|
|
"%div_a_b = OpSpecConstantOp %int SDiv %dead_spec_int_a %dead_spec_int_b",
|
|
"%div_a_b_vec = OpSpecConstantOp %v2int SDiv %dead_spec_int_a_vec %dead_spec_int_b_vec",
|
|
|
|
// Bitwise Xor
|
|
"%xor_a_b = OpSpecConstantOp %int BitwiseXor %dead_spec_int_a %dead_spec_int_b",
|
|
"%xor_a_b_vec = OpSpecConstantOp %v2int BitwiseXor %dead_spec_int_a_vec %dead_spec_int_b_vec",
|
|
|
|
// Scalar Comparison
|
|
"%less_a_b = OpSpecConstantOp %bool SLessThan %dead_spec_int_a %dead_spec_int_b",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
},
|
|
},
|
|
|
|
// Vectors without used swizzles should be removed.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_int = OpConstant %int 3",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%int_var = OpVariable %_pf_int Output",
|
|
"OpStore %int_var %used_int",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_int = OpConstant %int 3",
|
|
|
|
"%dead_spec_int_a = OpSpecConstant %int 1",
|
|
"%vec_a = OpSpecConstantComposite %v4int %dead_spec_int_a %dead_spec_int_a %dead_int %dead_int",
|
|
|
|
"%dead_spec_int_b = OpSpecConstant %int 2",
|
|
"%vec_b = OpSpecConstantComposite %v4int %dead_spec_int_b %dead_spec_int_b %used_int %used_int",
|
|
|
|
// Extract scalar
|
|
"%a_x = OpSpecConstantOp %int CompositeExtract %vec_a 0",
|
|
"%b_x = OpSpecConstantOp %int CompositeExtract %vec_b 0",
|
|
|
|
// Extract vector
|
|
"%a_xy = OpSpecConstantOp %v2int VectorShuffle %vec_a %vec_a 0 1",
|
|
"%b_xy = OpSpecConstantOp %v2int VectorShuffle %vec_b %vec_b 0 1",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[int:%\\w+]] = OpConstant %int 3",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[int]]",
|
|
},
|
|
},
|
|
// Vectors with used swizzles should not be removed.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%used_int = OpConstant %int 3",
|
|
"%used_spec_int_a = OpSpecConstant %int 1",
|
|
"%used_spec_int_b = OpSpecConstant %int 2",
|
|
// Create vectors
|
|
"%vec_a = OpSpecConstantComposite %v4int %used_spec_int_a %used_spec_int_a %used_int %used_int",
|
|
"%vec_b = OpSpecConstantComposite %v4int %used_spec_int_b %used_spec_int_b %used_int %used_int",
|
|
// Extract vector
|
|
"%a_xy = OpSpecConstantOp %v2int VectorShuffle %vec_a %vec_a 0 1",
|
|
"%b_xy = OpSpecConstantOp %v2int VectorShuffle %vec_b %vec_b 0 1",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%v2int_var_a = OpVariable %_pf_v2int Output",
|
|
"%v2int_var_b = OpVariable %_pf_v2int Output",
|
|
"OpStore %v2int_var_a %a_xy",
|
|
"OpStore %v2int_var_b %b_xy",
|
|
},
|
|
/* .dead_consts = */ {},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: [[int:%\\w+]] = OpConstant %int 3",
|
|
"; CHECK: [[a:%\\w+]] = OpSpecConstant %int 1",
|
|
"; CHECK: [[b:%\\w+]] = OpSpecConstant %int 2",
|
|
"; CHECK: [[veca:%\\w+]] = OpSpecConstantComposite %v4int [[a]] [[a]] [[int]] [[int]]",
|
|
"; CHECK: [[vecb:%\\w+]] = OpSpecConstantComposite %v4int [[b]] [[b]] [[int]] [[int]]",
|
|
"; CHECK: [[exa:%\\w+]] = OpSpecConstantOp %v2int VectorShuffle [[veca]] [[veca]] 0 1",
|
|
"; CHECK: [[exb:%\\w+]] = OpSpecConstantOp %v2int VectorShuffle [[vecb]] [[vecb]] 0 1",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[exa]]",
|
|
"; CHECK: OpStore {{%\\w+}} [[exb]]",
|
|
},
|
|
},
|
|
// clang-format on
|
|
})));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
LongDefUseChain, EliminateDeadConstantTest,
|
|
::testing::ValuesIn(std::vector<EliminateDeadConstantTestCase>({
|
|
// clang-format off
|
|
// Long Def-Use chain with binary operations.
|
|
{
|
|
/* .used_consts = */
|
|
{
|
|
"%array_size = OpConstant %int 4",
|
|
"%type_arr_int_4 = OpTypeArray %int %array_size",
|
|
"%used_int_0 = OpConstant %int 100",
|
|
"%used_int_1 = OpConstant %int 1",
|
|
"%used_int_2 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_1",
|
|
"%used_int_3 = OpSpecConstantOp %int ISub %used_int_0 %used_int_2",
|
|
"%used_int_4 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_3",
|
|
"%used_int_5 = OpSpecConstantOp %int ISub %used_int_0 %used_int_4",
|
|
"%used_int_6 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_5",
|
|
"%used_int_7 = OpSpecConstantOp %int ISub %used_int_0 %used_int_6",
|
|
"%used_int_8 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_7",
|
|
"%used_int_9 = OpSpecConstantOp %int ISub %used_int_0 %used_int_8",
|
|
"%used_int_10 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_9",
|
|
"%used_int_11 = OpSpecConstantOp %int ISub %used_int_0 %used_int_10",
|
|
"%used_int_12 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_11",
|
|
"%used_int_13 = OpSpecConstantOp %int ISub %used_int_0 %used_int_12",
|
|
"%used_int_14 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_13",
|
|
"%used_int_15 = OpSpecConstantOp %int ISub %used_int_0 %used_int_14",
|
|
"%used_int_16 = OpSpecConstantOp %int ISub %used_int_0 %used_int_15",
|
|
"%used_int_17 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_16",
|
|
"%used_int_18 = OpSpecConstantOp %int ISub %used_int_0 %used_int_17",
|
|
"%used_int_19 = OpSpecConstantOp %int IAdd %used_int_0 %used_int_18",
|
|
"%used_int_20 = OpSpecConstantOp %int ISub %used_int_0 %used_int_19",
|
|
"%used_vec_a = OpSpecConstantComposite %v2int %used_int_18 %used_int_19",
|
|
"%used_vec_b = OpSpecConstantOp %v2int IMul %used_vec_a %used_vec_a",
|
|
"%used_int_21 = OpSpecConstantOp %int CompositeExtract %used_vec_b 0",
|
|
"%used_array = OpConstantComposite %type_arr_int_4 %used_int_20 %used_int_20 %used_int_21 %used_int_21",
|
|
},
|
|
/* .main_insts = */
|
|
{
|
|
"%int_var = OpVariable %_pf_int Output",
|
|
"%used_array_2 = OpCompositeExtract %int %used_array 2",
|
|
"OpStore %int_var %used_array_2",
|
|
},
|
|
/* .dead_consts = */
|
|
{
|
|
"%dead_int_1 = OpConstant %int 2",
|
|
"%dead_int_2 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_1",
|
|
"%dead_int_3 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_2",
|
|
"%dead_int_4 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_3",
|
|
"%dead_int_5 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_4",
|
|
"%dead_int_6 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_5",
|
|
"%dead_int_7 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_6",
|
|
"%dead_int_8 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_7",
|
|
"%dead_int_9 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_8",
|
|
"%dead_int_10 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_9",
|
|
"%dead_int_11 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_10",
|
|
"%dead_int_12 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_11",
|
|
"%dead_int_13 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_12",
|
|
"%dead_int_14 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_13",
|
|
"%dead_int_15 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_14",
|
|
"%dead_int_16 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_15",
|
|
"%dead_int_17 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_16",
|
|
"%dead_int_18 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_17",
|
|
"%dead_int_19 = OpSpecConstantOp %int IAdd %used_int_0 %dead_int_18",
|
|
"%dead_int_20 = OpSpecConstantOp %int ISub %used_int_0 %dead_int_19",
|
|
"%dead_vec_a = OpSpecConstantComposite %v2int %dead_int_18 %dead_int_19",
|
|
"%dead_vec_b = OpSpecConstantOp %v2int IMul %dead_vec_a %dead_vec_a",
|
|
"%dead_int_21 = OpSpecConstantOp %int CompositeExtract %dead_vec_b 0",
|
|
"%dead_array = OpConstantComposite %type_arr_int_4 %dead_int_20 %used_int_20 %dead_int_19 %used_int_19",
|
|
},
|
|
/* .checks = */
|
|
{
|
|
"; CHECK: OpConstant %int 4",
|
|
"; CHECK: [[array:%\\w+]] = OpConstantComposite %type_arr_int_4 %used_int_20 %used_int_20 %used_int_21 %used_int_21",
|
|
"; CHECK-NOT: OpConstant",
|
|
"; CHECK-NOT: OpSpecConstant",
|
|
"; CHECK: OpStore {{%\\w+}} [[array]]",
|
|
},
|
|
},
|
|
// Long Def-Use chain with swizzle
|
|
// clang-format on
|
|
})));
|
|
|
|
TEST_F(AggressiveDCETest, DeadDecorationGroup) {
|
|
// The decoration group should be eliminated because the target of group
|
|
// decorate is dead.
|
|
const std::string text = R"(
|
|
; CHECK-NOT: OpDecorat
|
|
; CHECK-NOT: OpGroupDecorate
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpDecorate %1 Restrict
|
|
OpDecorate %1 Aliased
|
|
%1 = OpDecorationGroup
|
|
OpGroupDecorate %1 %var
|
|
%void = OpTypeVoid
|
|
%func = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%uint_ptr = OpTypePointer Function %uint
|
|
%main = OpFunction %void None %func
|
|
%2 = OpLabel
|
|
%var = OpVariable %uint_ptr Function
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, ParitallyDeadDecorationGroup) {
|
|
const std::string text = R"(
|
|
; CHECK: OpDecorate [[grp:%\w+]] Restrict
|
|
; CHECK: OpDecorate [[grp]] Aliased
|
|
; CHECK: [[grp]] = OpDecorationGroup
|
|
; CHECK: OpGroupDecorate [[grp]] [[output:%\w+]]
|
|
; CHECK: [[output]] = OpVariable {{%\w+}} Output
|
|
; CHECK-NOT: OpVariable {{%\w+}} Function
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %output
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpDecorate %1 Restrict
|
|
OpDecorate %1 Aliased
|
|
%1 = OpDecorationGroup
|
|
OpGroupDecorate %1 %var %output
|
|
%void = OpTypeVoid
|
|
%func = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%uint_ptr_Function = OpTypePointer Function %uint
|
|
%uint_ptr_Output = OpTypePointer Output %uint
|
|
%uint_0 = OpConstant %uint 0
|
|
%output = OpVariable %uint_ptr_Output Output
|
|
%main = OpFunction %void None %func
|
|
%2 = OpLabel
|
|
%var = OpVariable %uint_ptr_Function Function
|
|
OpStore %output %uint_0
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, ParitallyDeadDecorationGroupDifferentGroupDecorate) {
|
|
const std::string text = R"(
|
|
; CHECK: OpDecorate [[grp:%\w+]] Restrict
|
|
; CHECK: OpDecorate [[grp]] Aliased
|
|
; CHECK: [[grp]] = OpDecorationGroup
|
|
; CHECK: OpGroupDecorate [[grp]] [[output:%\w+]]
|
|
; CHECK-NOT: OpGroupDecorate
|
|
; CHECK: [[output]] = OpVariable {{%\w+}} Output
|
|
; CHECK-NOT: OpVariable {{%\w+}} Function
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %output
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpDecorate %1 Restrict
|
|
OpDecorate %1 Aliased
|
|
%1 = OpDecorationGroup
|
|
OpGroupDecorate %1 %output
|
|
OpGroupDecorate %1 %var
|
|
%void = OpTypeVoid
|
|
%func = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%uint_ptr_Function = OpTypePointer Function %uint
|
|
%uint_ptr_Output = OpTypePointer Output %uint
|
|
%uint_0 = OpConstant %uint 0
|
|
%output = OpVariable %uint_ptr_Output Output
|
|
%main = OpFunction %void None %func
|
|
%2 = OpLabel
|
|
%var = OpVariable %uint_ptr_Function Function
|
|
OpStore %output %uint_0
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, DeadGroupMemberDecorate) {
|
|
const std::string text = R"(
|
|
; CHECK-NOT: OpDec
|
|
; CHECK-NOT: OpGroup
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main"
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpDecorate %1 Offset 0
|
|
OpDecorate %1 Uniform
|
|
%1 = OpDecorationGroup
|
|
OpGroupMemberDecorate %1 %var 0
|
|
%void = OpTypeVoid
|
|
%func = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%struct = OpTypeStruct %uint %uint
|
|
%struct_ptr = OpTypePointer Function %struct
|
|
%main = OpFunction %void None %func
|
|
%2 = OpLabel
|
|
%var = OpVariable %struct_ptr Function
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, PartiallyDeadGroupMemberDecorate) {
|
|
const std::string text = R"(
|
|
; CHECK: OpDecorate [[grp:%\w+]] Offset 0
|
|
; CHECK: OpDecorate [[grp]] Uniform
|
|
; CHECK: [[grp]] = OpDecorationGroup
|
|
; CHECK: OpGroupMemberDecorate [[grp]] [[output:%\w+]] 1
|
|
; CHECK: [[output]] = OpTypeStruct
|
|
; CHECK-NOT: OpTypeStruct
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %output
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpDecorate %1 Offset 0
|
|
OpDecorate %1 Uniform
|
|
%1 = OpDecorationGroup
|
|
OpGroupMemberDecorate %1 %var_struct 0 %output_struct 1
|
|
%void = OpTypeVoid
|
|
%func = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%var_struct = OpTypeStruct %uint %uint
|
|
%output_struct = OpTypeStruct %uint %uint
|
|
%struct_ptr_Function = OpTypePointer Function %var_struct
|
|
%struct_ptr_Output = OpTypePointer Output %output_struct
|
|
%uint_ptr_Output = OpTypePointer Output %uint
|
|
%output = OpVariable %struct_ptr_Output Output
|
|
%uint_0 = OpConstant %uint 0
|
|
%main = OpFunction %void None %func
|
|
%2 = OpLabel
|
|
%var = OpVariable %struct_ptr_Function Function
|
|
%3 = OpAccessChain %uint_ptr_Output %output %uint_0
|
|
OpStore %3 %uint_0
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest,
|
|
PartiallyDeadGroupMemberDecorateDifferentGroupDecorate) {
|
|
const std::string text = R"(
|
|
; CHECK: OpDecorate [[grp:%\w+]] Offset 0
|
|
; CHECK: OpDecorate [[grp]] Uniform
|
|
; CHECK: [[grp]] = OpDecorationGroup
|
|
; CHECK: OpGroupMemberDecorate [[grp]] [[output:%\w+]] 1
|
|
; CHECK-NOT: OpGroupMemberDecorate
|
|
; CHECK: [[output]] = OpTypeStruct
|
|
; CHECK-NOT: OpTypeStruct
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %output
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpDecorate %1 Offset 0
|
|
OpDecorate %1 Uniform
|
|
%1 = OpDecorationGroup
|
|
OpGroupMemberDecorate %1 %var_struct 0
|
|
OpGroupMemberDecorate %1 %output_struct 1
|
|
%void = OpTypeVoid
|
|
%func = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%var_struct = OpTypeStruct %uint %uint
|
|
%output_struct = OpTypeStruct %uint %uint
|
|
%struct_ptr_Function = OpTypePointer Function %var_struct
|
|
%struct_ptr_Output = OpTypePointer Output %output_struct
|
|
%uint_ptr_Output = OpTypePointer Output %uint
|
|
%output = OpVariable %struct_ptr_Output Output
|
|
%uint_0 = OpConstant %uint 0
|
|
%main = OpFunction %void None %func
|
|
%2 = OpLabel
|
|
%var = OpVariable %struct_ptr_Function Function
|
|
%3 = OpAccessChain %uint_ptr_Output %output %uint_0
|
|
OpStore %3 %uint_0
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
|
|
// Test for #1404
|
|
TEST_F(AggressiveDCETest, DontRemoveWorkgroupSize) {
|
|
const std::string text = R"(
|
|
; CHECK: OpDecorate [[wgs:%\w+]] BuiltIn WorkgroupSize
|
|
; CHECK: [[wgs]] = OpSpecConstantComposite
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %func "func"
|
|
OpExecutionMode %func LocalSize 1 1 1
|
|
OpDecorate %1 BuiltIn WorkgroupSize
|
|
%void = OpTypeVoid
|
|
%int = OpTypeInt 32 0
|
|
%functy = OpTypeFunction %void
|
|
%v3int = OpTypeVector %int 3
|
|
%2 = OpSpecConstant %int 1
|
|
%1 = OpSpecConstantComposite %v3int %2 %2 %2
|
|
%func = OpFunction %void None %functy
|
|
%3 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndMatch<opt::AggressiveDCEPass>(text, true);
|
|
}
|
|
#endif // SPIRV_EFFCEE
|
|
|
|
// Test for #1214
|
|
TEST_F(AggressiveDCETest, LoopHeaderIsAlsoAnotherLoopMerge) {
|
|
const std::string text = R"(OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "func" %2
|
|
OpExecutionMode %1 OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%uint = OpTypeInt 32 0
|
|
%_ptr_Output_uint = OpTypePointer Output %uint
|
|
%2 = OpVariable %_ptr_Output_uint Output
|
|
%uint_0 = OpConstant %uint 0
|
|
%9 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %9
|
|
%10 = OpLabel
|
|
OpBranch %11
|
|
%11 = OpLabel
|
|
OpLoopMerge %12 %13 None
|
|
OpBranchConditional %true %14 %13
|
|
%14 = OpLabel
|
|
OpStore %2 %uint_0
|
|
OpLoopMerge %15 %16 None
|
|
OpBranchConditional %true %15 %16
|
|
%16 = OpLabel
|
|
OpBranch %14
|
|
%15 = OpLabel
|
|
OpBranchConditional %true %12 %13
|
|
%13 = OpLabel
|
|
OpBranch %11
|
|
%12 = OpLabel
|
|
%17 = OpPhi %uint %uint_0 %15 %uint_0 %18
|
|
OpStore %2 %17
|
|
OpLoopMerge %19 %18 None
|
|
OpBranchConditional %true %19 %18
|
|
%18 = OpLabel
|
|
OpBranch %12
|
|
%19 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(text, text, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, BreaksDontVisitPhis) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %func "func" %var
|
|
OpExecutionMode %func OriginUpperLeft
|
|
%void = OpTypeVoid
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%int = OpTypeInt 32 0
|
|
%int_ptr_Output = OpTypePointer Output %int
|
|
%var = OpVariable %int_ptr_Output Output
|
|
%int0 = OpConstant %int 0
|
|
%functy = OpTypeFunction %void
|
|
%func = OpFunction %void None %functy
|
|
%entry = OpLabel
|
|
OpBranch %outer_header
|
|
%outer_header = OpLabel
|
|
OpLoopMerge %outer_merge %outer_continue None
|
|
OpBranchConditional %true %inner_header %outer_continue
|
|
%inner_header = OpLabel
|
|
%phi = OpPhi %int %int0 %outer_header %int0 %inner_continue
|
|
OpStore %var %phi
|
|
OpLoopMerge %inner_merge %inner_continue None
|
|
OpBranchConditional %true %inner_merge %inner_continue
|
|
%inner_continue = OpLabel
|
|
OpBranch %inner_header
|
|
%inner_merge = OpLabel
|
|
OpBranch %outer_continue
|
|
%outer_continue = OpLabel
|
|
%p = OpPhi %int %int0 %outer_header %int0 %inner_merge
|
|
OpStore %var %p
|
|
OpBranch %outer_header
|
|
%outer_merge = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
EXPECT_EQ(opt::Pass::Status::SuccessWithoutChange,
|
|
std::get<1>(SinglePassRunAndDisassemble<opt::AggressiveDCEPass>(
|
|
text, false, true)));
|
|
}
|
|
|
|
// Test for #1212
|
|
TEST_F(AggressiveDCETest, ConstStoreInnerLoop) {
|
|
const std::string text = R"(OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Vertex %1 "main" %2
|
|
%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%2 = OpVariable %_ptr_Output_float Output
|
|
%float_3 = OpConstant %float 3
|
|
%1 = OpFunction %void None %4
|
|
%13 = OpLabel
|
|
OpBranch %14
|
|
%14 = OpLabel
|
|
OpLoopMerge %15 %16 None
|
|
OpBranchConditional %true %17 %15
|
|
%17 = OpLabel
|
|
OpStore %2 %float_3
|
|
OpLoopMerge %18 %17 None
|
|
OpBranchConditional %true %18 %17
|
|
%18 = OpLabel
|
|
OpBranch %15
|
|
%16 = OpLabel
|
|
OpBranch %14
|
|
%15 = OpLabel
|
|
OpBranch %20
|
|
%20 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(text, text, true, true);
|
|
}
|
|
|
|
// Test for #1212
|
|
TEST_F(AggressiveDCETest, InnerLoopCopy) {
|
|
const std::string text = R"(OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Vertex %1 "main" %2 %3
|
|
%void = OpTypeVoid
|
|
%5 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%bool = OpTypeBool
|
|
%true = OpConstantTrue %bool
|
|
%_ptr_Output_float = OpTypePointer Output %float
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%2 = OpVariable %_ptr_Output_float Output
|
|
%3 = OpVariable %_ptr_Input_float Input
|
|
%1 = OpFunction %void None %5
|
|
%14 = OpLabel
|
|
OpBranch %15
|
|
%15 = OpLabel
|
|
OpLoopMerge %16 %17 None
|
|
OpBranchConditional %true %18 %16
|
|
%18 = OpLabel
|
|
%19 = OpLoad %float %3
|
|
OpStore %2 %19
|
|
OpLoopMerge %20 %18 None
|
|
OpBranchConditional %true %20 %18
|
|
%20 = OpLabel
|
|
OpBranch %16
|
|
%17 = OpLabel
|
|
OpBranch %15
|
|
%16 = OpLabel
|
|
OpBranch %22
|
|
%22 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(text, text, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, AtomicAdd) {
|
|
const std::string text = R"(OpCapability SampledBuffer
|
|
OpCapability StorageImageExtendedFormats
|
|
OpCapability ImageBuffer
|
|
OpCapability Shader
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %2 "min" %gl_GlobalInvocationID
|
|
OpExecutionMode %2 LocalSize 64 1 1
|
|
OpSource HLSL 600
|
|
OpDecorate %gl_GlobalInvocationID BuiltIn GlobalInvocationId
|
|
OpDecorate %4 DescriptorSet 4
|
|
OpDecorate %4 Binding 70
|
|
%uint = OpTypeInt 32 0
|
|
%6 = OpTypeImage %uint Buffer 0 0 0 2 R32ui
|
|
%_ptr_UniformConstant_6 = OpTypePointer UniformConstant %6
|
|
%_ptr_Private_6 = OpTypePointer Private %6
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%uint_0 = OpConstant %uint 0
|
|
%uint_1 = OpConstant %uint 1
|
|
%v3uint = OpTypeVector %uint 3
|
|
%_ptr_Input_v3uint = OpTypePointer Input %v3uint
|
|
%_ptr_Image_uint = OpTypePointer Image %uint
|
|
%4 = OpVariable %_ptr_UniformConstant_6 UniformConstant
|
|
%16 = OpVariable %_ptr_Private_6 Private
|
|
%gl_GlobalInvocationID = OpVariable %_ptr_Input_v3uint Input
|
|
%2 = OpFunction %void None %10
|
|
%17 = OpLabel
|
|
%18 = OpLoad %6 %4
|
|
OpStore %16 %18
|
|
%19 = OpImageTexelPointer %_ptr_Image_uint %16 %uint_0 %uint_0
|
|
%20 = OpAtomicIAdd %uint %19 %uint_1 %uint_0 %uint_1
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(text, text, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, SafelyRemoveDecorateString) {
|
|
const std::string preamble = R"(OpCapability Shader
|
|
OpExtension "SPV_GOOGLE_hlsl_functionality1"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %1 "main"
|
|
)";
|
|
|
|
const std::string body_before =
|
|
R"(OpDecorateStringGOOGLE %2 HlslSemanticGOOGLE "FOOBAR"
|
|
%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%uint = OpTypeInt 32 0
|
|
%_ptr_StorageBuffer_uint = OpTypePointer StorageBuffer %uint
|
|
%2 = OpVariable %_ptr_StorageBuffer_uint StorageBuffer
|
|
%1 = OpFunction %void None %4
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string body_after = R"(%void = OpTypeVoid
|
|
%4 = OpTypeFunction %void
|
|
%1 = OpFunction %void None %4
|
|
%7 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
preamble + body_before, preamble + body_after, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, CopyMemoryToGlobal) {
|
|
// |local| is loaded in an OpCopyMemory instruction. So the store must be
|
|
// kept alive.
|
|
const std::string test =
|
|
R"(OpCapability Geometry
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Geometry %main "main" %global
|
|
OpExecutionMode %main Triangles
|
|
OpExecutionMode %main Invocations 1
|
|
OpExecutionMode %main OutputTriangleStrip
|
|
OpExecutionMode %main OutputVertices 5
|
|
OpSource GLSL 440
|
|
OpName %main "main"
|
|
OpName %local "local"
|
|
OpName %global "global"
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%12 = OpConstantNull %v4float
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%global = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %7
|
|
%19 = OpLabel
|
|
%local = OpVariable %_ptr_Function_v4float Function
|
|
OpStore %local %12
|
|
OpCopyMemory %global %local
|
|
OpEndPrimitive
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(test, test, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, CopyMemoryToLocal) {
|
|
// Make sure the store to |local2| using OpCopyMemory is kept and keeps
|
|
// |local1| alive.
|
|
const std::string test =
|
|
R"(OpCapability Geometry
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Geometry %main "main" %global
|
|
OpExecutionMode %main Triangles
|
|
OpExecutionMode %main Invocations 1
|
|
OpExecutionMode %main OutputTriangleStrip
|
|
OpExecutionMode %main OutputVertices 5
|
|
OpSource GLSL 440
|
|
OpName %main "main"
|
|
OpName %local1 "local1"
|
|
OpName %local2 "local2"
|
|
OpName %global "global"
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%12 = OpConstantNull %v4float
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%global = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %7
|
|
%19 = OpLabel
|
|
%local1 = OpVariable %_ptr_Function_v4float Function
|
|
%local2 = OpVariable %_ptr_Function_v4float Function
|
|
OpStore %local1 %12
|
|
OpCopyMemory %local2 %local1
|
|
OpCopyMemory %global %local2
|
|
OpEndPrimitive
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(test, test, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, RemoveCopyMemoryToLocal) {
|
|
// Test that we remove function scope variables that are stored to using
|
|
// OpCopyMemory, but are never loaded. We can remove both |local1| and
|
|
// |local2|.
|
|
const std::string test =
|
|
R"(OpCapability Geometry
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Geometry %main "main" %global
|
|
OpExecutionMode %main Triangles
|
|
OpExecutionMode %main Invocations 1
|
|
OpExecutionMode %main OutputTriangleStrip
|
|
OpExecutionMode %main OutputVertices 5
|
|
OpSource GLSL 440
|
|
OpName %main "main"
|
|
OpName %local1 "local1"
|
|
OpName %local2 "local2"
|
|
OpName %global "global"
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%12 = OpConstantNull %v4float
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%global = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %7
|
|
%19 = OpLabel
|
|
%local1 = OpVariable %_ptr_Function_v4float Function
|
|
%local2 = OpVariable %_ptr_Function_v4float Function
|
|
OpStore %local1 %12
|
|
OpCopyMemory %local2 %local1
|
|
OpEndPrimitive
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string result =
|
|
R"(OpCapability Geometry
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Geometry %main "main" %global
|
|
OpExecutionMode %main Triangles
|
|
OpExecutionMode %main Invocations 1
|
|
OpExecutionMode %main OutputTriangleStrip
|
|
OpExecutionMode %main OutputVertices 5
|
|
OpSource GLSL 440
|
|
OpName %main "main"
|
|
OpName %global "global"
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%global = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %7
|
|
%19 = OpLabel
|
|
OpEndPrimitive
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(test, result, true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, RemoveCopyMemoryToLocal2) {
|
|
// We are able to remove "local2" because it is not loaded, but have to keep
|
|
// the stores to "local1".
|
|
const std::string test =
|
|
R"(OpCapability Geometry
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Geometry %main "main" %global
|
|
OpExecutionMode %main Triangles
|
|
OpExecutionMode %main Invocations 1
|
|
OpExecutionMode %main OutputTriangleStrip
|
|
OpExecutionMode %main OutputVertices 5
|
|
OpSource GLSL 440
|
|
OpName %main "main"
|
|
OpName %local1 "local1"
|
|
OpName %local2 "local2"
|
|
OpName %global "global"
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%12 = OpConstantNull %v4float
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%global = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %7
|
|
%19 = OpLabel
|
|
%local1 = OpVariable %_ptr_Function_v4float Function
|
|
%local2 = OpVariable %_ptr_Function_v4float Function
|
|
OpStore %local1 %12
|
|
OpCopyMemory %local2 %local1
|
|
OpCopyMemory %global %local1
|
|
OpEndPrimitive
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string result =
|
|
R"(OpCapability Geometry
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Geometry %main "main" %global
|
|
OpExecutionMode %main Triangles
|
|
OpExecutionMode %main Invocations 1
|
|
OpExecutionMode %main OutputTriangleStrip
|
|
OpExecutionMode %main OutputVertices 5
|
|
OpSource GLSL 440
|
|
OpName %main "main"
|
|
OpName %local1 "local1"
|
|
OpName %global "global"
|
|
%void = OpTypeVoid
|
|
%7 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%12 = OpConstantNull %v4float
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%global = OpVariable %_ptr_Output_v4float Output
|
|
%main = OpFunction %void None %7
|
|
%19 = OpLabel
|
|
%local1 = OpVariable %_ptr_Function_v4float Function
|
|
OpStore %local1 %12
|
|
OpCopyMemory %global %local1
|
|
OpEndPrimitive
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(test, result, true, true);
|
|
}
|
|
// TODO(greg-lunarg): Add tests to verify handling of these cases:
|
|
//
|
|
// Check that logical addressing required
|
|
// Check that function calls inhibit optimization
|
|
// Others?
|
|
|
|
} // anonymous namespace
|