mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-19 03:20:14 +00:00
1182415581
Currently only SPV_KHR_variable_pointers is disallowed in passes which do pointer analysis. Positive and negative tests of the general extensions mechanism were added to aggressive_dce but cover all passes.
690 lines
17 KiB
C++
690 lines
17 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 "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,
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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 %ResType "ResType"
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OpName %Color "Color"
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)";
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const std::string predefs2 =
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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 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 + func_before,
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predefs1 + names_after + predefs2 + func_after,
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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 =
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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 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 + func_before,
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predefs1 + names_after + predefs2 + func_after,
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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,
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true, true);
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}
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TEST_F(AggressiveDCETest, DeadCycle) {
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// #version 140
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// in vec4 BaseColor;
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//
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// layout(std140) uniform U_t
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// {
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// int g_I ;
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// } ;
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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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// float df = 0.0;
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// int i = 0;
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// while (i < g_I) {
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// df = df * 0.5;
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// i = i + 1;
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// }
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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 %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 %df "df"
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OpName %i "i"
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OpName %U_t "U_t"
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OpMemberName %U_t 0 "g_I"
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OpName %_ ""
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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 %i "i"
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OpName %U_t "U_t"
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OpMemberName %U_t 0 "g_I"
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OpName %_ ""
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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"(OpMemberDecorate %U_t 0 Offset 0
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OpDecorate %U_t Block
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OpDecorate %_ DescriptorSet 0
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%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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%_ptr_Function_float = OpTypePointer Function %float
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%float_0 = OpConstant %float 0
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%int = OpTypeInt 32 1
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%_ptr_Function_int = OpTypePointer Function %int
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%int_0 = OpConstant %int 0
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%U_t = OpTypeStruct %int
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%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
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%_ = OpVariable %_ptr_Uniform_U_t Uniform
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%_ptr_Uniform_int = OpTypePointer Uniform %int
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%bool = OpTypeBool
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%float_0_5 = OpConstant %float 0.5
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%int_1 = OpConstant %int 1
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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 %11
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%27 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%df = OpVariable %_ptr_Function_float Function
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%i = OpVariable %_ptr_Function_int Function
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%28 = OpLoad %v4float %BaseColor
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OpStore %v %28
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OpStore %df %float_0
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OpStore %i %int_0
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OpBranch %29
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%29 = OpLabel
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OpLoopMerge %30 %31 None
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OpBranch %32
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%32 = OpLabel
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%33 = OpLoad %int %i
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%34 = OpAccessChain %_ptr_Uniform_int %_ %int_0
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%35 = OpLoad %int %34
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%36 = OpSLessThan %bool %33 %35
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OpBranchConditional %36 %37 %30
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%37 = OpLabel
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%38 = OpLoad %float %df
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%39 = OpFMul %float %38 %float_0_5
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OpStore %df %39
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%40 = OpLoad %int %i
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%41 = OpIAdd %int %40 %int_1
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OpStore %i %41
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OpBranch %31
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%31 = OpLabel
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OpBranch %29
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%30 = OpLabel
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%42 = OpLoad %v4float %v
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OpStore %gl_FragColor %42
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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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%27 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%i = OpVariable %_ptr_Function_int Function
|
|
%28 = OpLoad %v4float %BaseColor
|
|
OpStore %v %28
|
|
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
|
|
%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
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs1 + names_before + predefs2 + func_before,
|
|
predefs1 + names_after + predefs2 + func_after,
|
|
true, true);
|
|
}
|
|
|
|
TEST_F(AggressiveDCETest, OptWhitelistExtension) {
|
|
// #version 140
|
|
//
|
|
// in vec4 BaseColor;
|
|
// in vec4 Dead;
|
|
//
|
|
// void main()
|
|
// {
|
|
// vec4 v = BaseColor;
|
|
// vec4 dv = Dead;
|
|
// gl_FragColor = v;
|
|
// }
|
|
|
|
const std::string predefs1 =
|
|
R"(OpCapability Shader
|
|
OpExtension "SPV_AMD_gpu_shader_int16"
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %main "main" %BaseColor %Dead %gl_FragColor
|
|
OpExecutionMode %main OriginUpperLeft
|
|
OpSource GLSL 140
|
|
)";
|
|
|
|
const std::string names_before =
|
|
R"(OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %dv "dv"
|
|
OpName %Dead "Dead"
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
)";
|
|
|
|
const std::string names_after =
|
|
R"(OpName %main "main"
|
|
OpName %v "v"
|
|
OpName %BaseColor "BaseColor"
|
|
OpName %Dead "Dead"
|
|
OpName %gl_FragColor "gl_FragColor"
|
|
)";
|
|
|
|
const std::string predefs2 =
|
|
R"(%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
|
|
)";
|
|
|
|
const std::string func_before =
|
|
R"(%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
|
|
)";
|
|
|
|
const std::string func_after =
|
|
R"(%main = OpFunction %void None %9
|
|
%15 = OpLabel
|
|
%v = OpVariable %_ptr_Function_v4float Function
|
|
%16 = OpLoad %v4float %BaseColor
|
|
OpStore %v %16
|
|
%18 = OpLoad %v4float %v
|
|
OpStore %gl_FragColor %18
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::AggressiveDCEPass>(
|
|
predefs1 + names_before + predefs2 + func_before,
|
|
predefs1 + names_after + predefs2 + func_after,
|
|
true, true);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
// 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
|