mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-19 03:20:14 +00:00
9ba0879ddf
Track live scalars in VDCE as if they were single element vectors. Handle the extended instructions for GLSL in VDCE. Handle composite construct instructions in VDCE.
568 lines
17 KiB
C++
568 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 DeadInsertElimTest = PassTest<::testing::Test>;
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TEST_F(DeadInsertElimTest, InsertAfterInsertElim) {
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// With two insertions to the same offset, the first is dead.
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//
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// Note: The SPIR-V assembly has had store/load elimination
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// performed to allow the inserts and extracts to directly
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// reference each other.
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//
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// #version 450
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//
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// layout (location=0) in float In0;
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// layout (location=1) in float In1;
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// layout (location=2) in vec2 In2;
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// layout (location=0) out vec4 OutColor;
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//
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// void main()
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// {
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// vec2 v = In2;
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// v.x = In0 + In1; // dead
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// v.x = 0.0;
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// OutColor = v.xyxy;
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// }
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const std::string before_predefs =
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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" %In2 %In0 %In1 %OutColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 450
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OpName %main "main"
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OpName %In2 "In2"
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OpName %In0 "In0"
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OpName %In1 "In1"
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OpName %OutColor "OutColor"
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OpName %_Globals_ "_Globals_"
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OpMemberName %_Globals_ 0 "g_b"
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OpMemberName %_Globals_ 1 "g_n"
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OpName %_ ""
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OpDecorate %In2 Location 2
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OpDecorate %In0 Location 0
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OpDecorate %In1 Location 1
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OpDecorate %OutColor Location 0
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OpMemberDecorate %_Globals_ 0 Offset 0
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OpMemberDecorate %_Globals_ 1 Offset 4
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OpDecorate %_Globals_ Block
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OpDecorate %_ DescriptorSet 0
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OpDecorate %_ Binding 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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%v2float = OpTypeVector %float 2
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%_ptr_Function_v2float = OpTypePointer Function %v2float
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%_ptr_Input_v2float = OpTypePointer Input %v2float
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%In2 = OpVariable %_ptr_Input_v2float Input
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%_ptr_Input_float = OpTypePointer Input %float
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%In0 = OpVariable %_ptr_Input_float Input
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%In1 = OpVariable %_ptr_Input_float Input
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%uint = OpTypeInt 32 0
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%_ptr_Function_float = OpTypePointer Function %float
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%float_0 = OpConstant %float 0
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%v4float = OpTypeVector %float 4
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%OutColor = OpVariable %_ptr_Output_v4float Output
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%int = OpTypeInt 32 1
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%_Globals_ = OpTypeStruct %uint %int
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%_ptr_Uniform__Globals_ = OpTypePointer Uniform %_Globals_
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%_ = OpVariable %_ptr_Uniform__Globals_ Uniform
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)";
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const std::string after_predefs =
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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" %In2 %In0 %In1 %OutColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 450
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OpName %main "main"
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OpName %In2 "In2"
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OpName %In0 "In0"
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OpName %In1 "In1"
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OpName %OutColor "OutColor"
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OpName %_Globals_ "_Globals_"
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OpMemberName %_Globals_ 0 "g_b"
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OpMemberName %_Globals_ 1 "g_n"
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OpName %_ ""
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OpDecorate %In2 Location 2
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OpDecorate %In0 Location 0
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OpDecorate %In1 Location 1
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OpDecorate %OutColor Location 0
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OpMemberDecorate %_Globals_ 0 Offset 0
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OpMemberDecorate %_Globals_ 1 Offset 4
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OpDecorate %_Globals_ Block
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OpDecorate %_ DescriptorSet 0
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OpDecorate %_ Binding 0
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%void = OpTypeVoid
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%10 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v2float = OpTypeVector %float 2
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%_ptr_Function_v2float = OpTypePointer Function %v2float
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%_ptr_Input_v2float = OpTypePointer Input %v2float
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%In2 = OpVariable %_ptr_Input_v2float Input
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%_ptr_Input_float = OpTypePointer Input %float
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%In0 = OpVariable %_ptr_Input_float Input
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%In1 = OpVariable %_ptr_Input_float Input
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%uint = OpTypeInt 32 0
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%_ptr_Function_float = OpTypePointer Function %float
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%float_0 = OpConstant %float 0
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%v4float = OpTypeVector %float 4
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%OutColor = OpVariable %_ptr_Output_v4float Output
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%int = OpTypeInt 32 1
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%_Globals_ = OpTypeStruct %uint %int
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%_ptr_Uniform__Globals_ = OpTypePointer Uniform %_Globals_
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%_ = OpVariable %_ptr_Uniform__Globals_ Uniform
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)";
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const std::string before =
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R"(%main = OpFunction %void None %11
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%25 = OpLabel
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%26 = OpLoad %v2float %In2
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%27 = OpLoad %float %In0
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%28 = OpLoad %float %In1
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%29 = OpFAdd %float %27 %28
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%35 = OpCompositeInsert %v2float %29 %26 0
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%37 = OpCompositeInsert %v2float %float_0 %35 0
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%33 = OpVectorShuffle %v4float %37 %37 0 1 0 1
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OpStore %OutColor %33
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OpReturn
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OpFunctionEnd
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)";
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const std::string after =
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R"(%main = OpFunction %void None %10
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%23 = OpLabel
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%24 = OpLoad %v2float %In2
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%29 = OpCompositeInsert %v2float %float_0 %24 0
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%30 = OpVectorShuffle %v4float %29 %29 0 1 0 1
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OpStore %OutColor %30
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::DeadInsertElimPass>(
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before_predefs + before, after_predefs + after, true, true);
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}
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TEST_F(DeadInsertElimTest, DeadInsertInChainWithPhi) {
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// Dead insert eliminated with phi in insertion chain.
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//
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// Note: The SPIR-V assembly has had store/load elimination
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// performed to allow the inserts and extracts to directly
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// reference each other.
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//
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// #version 450
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//
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// layout (location=0) in vec4 In0;
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// layout (location=1) in float In1;
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// layout (location=2) in float In2;
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// layout (location=0) out vec4 OutColor;
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//
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// layout(std140, binding = 0 ) uniform _Globals_
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// {
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// bool g_b;
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// };
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//
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// void main()
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// {
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// vec4 v = In0;
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// v.z = In1 + In2;
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// if (g_b) v.w = 1.0;
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// OutColor = vec4(v.x,v.y,0.0,v.w);
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// }
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const std::string before_predefs =
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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" %In0 %In1 %In2 %OutColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 450
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OpName %main "main"
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OpName %In0 "In0"
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OpName %In1 "In1"
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OpName %In2 "In2"
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OpName %_Globals_ "_Globals_"
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OpMemberName %_Globals_ 0 "g_b"
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OpName %_ ""
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OpName %OutColor "OutColor"
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OpDecorate %In0 Location 0
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OpDecorate %In1 Location 1
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OpDecorate %In2 Location 2
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OpMemberDecorate %_Globals_ 0 Offset 0
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OpDecorate %_Globals_ Block
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OpDecorate %_ DescriptorSet 0
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OpDecorate %_ Binding 0
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OpDecorate %OutColor Location 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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%In0 = OpVariable %_ptr_Input_v4float Input
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%_ptr_Input_float = OpTypePointer Input %float
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%In1 = OpVariable %_ptr_Input_float Input
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%In2 = OpVariable %_ptr_Input_float Input
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%uint = OpTypeInt 32 0
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%_ptr_Function_float = OpTypePointer Function %float
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%_Globals_ = OpTypeStruct %uint
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%_ptr_Uniform__Globals_ = OpTypePointer Uniform %_Globals_
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%_ = OpVariable %_ptr_Uniform__Globals_ Uniform
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%bool = OpTypeBool
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%uint_0 = OpConstant %uint 0
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%float_1 = OpConstant %float 1
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%OutColor = OpVariable %_ptr_Output_v4float Output
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%float_0 = OpConstant %float 0
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)";
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const std::string after_predefs =
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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" %In0 %In1 %In2 %OutColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 450
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OpName %main "main"
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OpName %In0 "In0"
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OpName %In1 "In1"
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OpName %In2 "In2"
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OpName %_Globals_ "_Globals_"
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OpMemberName %_Globals_ 0 "g_b"
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OpName %_ ""
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OpName %OutColor "OutColor"
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OpDecorate %In0 Location 0
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OpDecorate %In1 Location 1
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OpDecorate %In2 Location 2
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OpMemberDecorate %_Globals_ 0 Offset 0
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OpDecorate %_Globals_ Block
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OpDecorate %_ DescriptorSet 0
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OpDecorate %_ Binding 0
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OpDecorate %OutColor Location 0
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%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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%In0 = OpVariable %_ptr_Input_v4float Input
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%_ptr_Input_float = OpTypePointer Input %float
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%In1 = OpVariable %_ptr_Input_float Input
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%In2 = OpVariable %_ptr_Input_float Input
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%uint = OpTypeInt 32 0
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%_ptr_Function_float = OpTypePointer Function %float
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%_Globals_ = OpTypeStruct %uint
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%_ptr_Uniform__Globals_ = OpTypePointer Uniform %_Globals_
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%_ = OpVariable %_ptr_Uniform__Globals_ Uniform
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%bool = OpTypeBool
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%uint_0 = OpConstant %uint 0
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%float_1 = OpConstant %float 1
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%OutColor = OpVariable %_ptr_Output_v4float Output
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%float_0 = OpConstant %float 0
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)";
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const std::string before =
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R"(%main = OpFunction %void None %11
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%31 = OpLabel
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%32 = OpLoad %v4float %In0
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%33 = OpLoad %float %In1
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%34 = OpLoad %float %In2
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%35 = OpFAdd %float %33 %34
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%51 = OpCompositeInsert %v4float %35 %32 2
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%37 = OpAccessChain %_ptr_Uniform_uint %_ %int_0
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%38 = OpLoad %uint %37
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%39 = OpINotEqual %bool %38 %uint_0
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OpSelectionMerge %40 None
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OpBranchConditional %39 %41 %40
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%41 = OpLabel
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%53 = OpCompositeInsert %v4float %float_1 %51 3
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OpBranch %40
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%40 = OpLabel
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%60 = OpPhi %v4float %51 %31 %53 %41
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%55 = OpCompositeExtract %float %60 0
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%57 = OpCompositeExtract %float %60 1
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%59 = OpCompositeExtract %float %60 3
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%49 = OpCompositeConstruct %v4float %55 %57 %float_0 %59
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OpStore %OutColor %49
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OpReturn
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OpFunctionEnd
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)";
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const std::string after =
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R"(%main = OpFunction %void None %10
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%27 = OpLabel
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%28 = OpLoad %v4float %In0
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%33 = OpAccessChain %_ptr_Uniform_uint %_ %int_0
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%34 = OpLoad %uint %33
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%35 = OpINotEqual %bool %34 %uint_0
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OpSelectionMerge %36 None
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OpBranchConditional %35 %37 %36
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%37 = OpLabel
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%38 = OpCompositeInsert %v4float %float_1 %28 3
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OpBranch %36
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%36 = OpLabel
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%39 = OpPhi %v4float %28 %27 %38 %37
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%40 = OpCompositeExtract %float %39 0
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%41 = OpCompositeExtract %float %39 1
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%42 = OpCompositeExtract %float %39 3
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%43 = OpCompositeConstruct %v4float %40 %41 %float_0 %42
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OpStore %OutColor %43
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::DeadInsertElimPass>(
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before_predefs + before, after_predefs + after, true, true);
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}
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TEST_F(DeadInsertElimTest, DeadInsertTwoPasses) {
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// Dead insert which requires two passes to eliminate
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//
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// Note: The SPIR-V assembly has had store/load elimination
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// performed to allow the inserts and extracts to directly
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// reference each other.
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//
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// #version 450
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//
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// layout (location=0) in vec4 In0;
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// layout (location=1) in float In1;
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// layout (location=2) in float In2;
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// layout (location=0) out vec4 OutColor;
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//
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// layout(std140, binding = 0 ) uniform _Globals_
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// {
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// bool g_b;
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// bool g_b2;
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// };
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//
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// void main()
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// {
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// vec4 v1, v2;
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// v1 = In0;
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// v1.y = In1 + In2; // dead, second pass
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// if (g_b) v1.x = 1.0;
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// v2.x = v1.x;
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// v2.y = v1.y; // dead, first pass
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// if (g_b2) v2.x = 0.0;
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// OutColor = vec4(v2.x,v2.x,0.0,1.0);
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// }
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const std::string before_predefs =
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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" %In0 %In1 %In2 %OutColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 450
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OpName %main "main"
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OpName %In0 "In0"
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OpName %In1 "In1"
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OpName %In2 "In2"
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OpName %_Globals_ "_Globals_"
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OpMemberName %_Globals_ 0 "g_b"
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OpMemberName %_Globals_ 1 "g_b2"
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OpName %_ ""
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OpName %OutColor "OutColor"
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OpDecorate %In0 Location 0
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OpDecorate %In1 Location 1
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OpDecorate %In2 Location 2
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OpMemberDecorate %_Globals_ 0 Offset 0
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OpMemberDecorate %_Globals_ 1 Offset 4
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OpDecorate %_Globals_ Block
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OpDecorate %_ DescriptorSet 0
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OpDecorate %_ Binding 0
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OpDecorate %OutColor Location 0
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%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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%In0 = OpVariable %_ptr_Input_v4float Input
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%_ptr_Input_float = OpTypePointer Input %float
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%In1 = OpVariable %_ptr_Input_float Input
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%In2 = OpVariable %_ptr_Input_float Input
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%uint = OpTypeInt 32 0
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%_Globals_ = OpTypeStruct %uint %uint
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%_ptr_Uniform__Globals_ = OpTypePointer Uniform %_Globals_
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%_ = OpVariable %_ptr_Uniform__Globals_ Uniform
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%bool = OpTypeBool
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%uint_0 = OpConstant %uint 0
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%float_1 = OpConstant %float 1
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%int_1 = OpConstant %int 1
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%float_0 = OpConstant %float 0
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%OutColor = OpVariable %_ptr_Output_v4float Output
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%27 = OpUndef %v4float
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)";
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const std::string after_predefs =
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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" %In0 %In1 %In2 %OutColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 450
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OpName %main "main"
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OpName %In0 "In0"
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OpName %In1 "In1"
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OpName %In2 "In2"
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OpName %_Globals_ "_Globals_"
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OpMemberName %_Globals_ 0 "g_b"
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OpMemberName %_Globals_ 1 "g_b2"
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OpName %_ ""
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OpName %OutColor "OutColor"
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OpDecorate %In0 Location 0
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OpDecorate %In1 Location 1
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OpDecorate %In2 Location 2
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OpMemberDecorate %_Globals_ 0 Offset 0
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OpMemberDecorate %_Globals_ 1 Offset 4
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OpDecorate %_Globals_ Block
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OpDecorate %_ DescriptorSet 0
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OpDecorate %_ Binding 0
|
|
OpDecorate %OutColor Location 0
|
|
%void = OpTypeVoid
|
|
%10 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%_ptr_Input_v4float = OpTypePointer Input %v4float
|
|
%In0 = OpVariable %_ptr_Input_v4float Input
|
|
%_ptr_Input_float = OpTypePointer Input %float
|
|
%In1 = OpVariable %_ptr_Input_float Input
|
|
%In2 = OpVariable %_ptr_Input_float Input
|
|
%uint = OpTypeInt 32 0
|
|
%_Globals_ = OpTypeStruct %uint %uint
|
|
%_ptr_Uniform__Globals_ = OpTypePointer Uniform %_Globals_
|
|
%_ = OpVariable %_ptr_Uniform__Globals_ Uniform
|
|
%int = OpTypeInt 32 1
|
|
%int_0 = OpConstant %int 0
|
|
%_ptr_Uniform_uint = OpTypePointer Uniform %uint
|
|
%bool = OpTypeBool
|
|
%uint_0 = OpConstant %uint 0
|
|
%float_1 = OpConstant %float 1
|
|
%int_1 = OpConstant %int 1
|
|
%float_0 = OpConstant %float 0
|
|
%_ptr_Output_v4float = OpTypePointer Output %v4float
|
|
%OutColor = OpVariable %_ptr_Output_v4float Output
|
|
%27 = OpUndef %v4float
|
|
)";
|
|
|
|
const std::string before =
|
|
R"(%main = OpFunction %void None %10
|
|
%28 = OpLabel
|
|
%29 = OpLoad %v4float %In0
|
|
%30 = OpLoad %float %In1
|
|
%31 = OpLoad %float %In2
|
|
%32 = OpFAdd %float %30 %31
|
|
%33 = OpCompositeInsert %v4float %32 %29 1
|
|
%34 = OpAccessChain %_ptr_Uniform_uint %_ %int_0
|
|
%35 = OpLoad %uint %34
|
|
%36 = OpINotEqual %bool %35 %uint_0
|
|
OpSelectionMerge %37 None
|
|
OpBranchConditional %36 %38 %37
|
|
%38 = OpLabel
|
|
%39 = OpCompositeInsert %v4float %float_1 %33 0
|
|
OpBranch %37
|
|
%37 = OpLabel
|
|
%40 = OpPhi %v4float %33 %28 %39 %38
|
|
%41 = OpCompositeExtract %float %40 0
|
|
%42 = OpCompositeInsert %v4float %41 %27 0
|
|
%43 = OpCompositeExtract %float %40 1
|
|
%44 = OpCompositeInsert %v4float %43 %42 1
|
|
%45 = OpAccessChain %_ptr_Uniform_uint %_ %int_1
|
|
%46 = OpLoad %uint %45
|
|
%47 = OpINotEqual %bool %46 %uint_0
|
|
OpSelectionMerge %48 None
|
|
OpBranchConditional %47 %49 %48
|
|
%49 = OpLabel
|
|
%50 = OpCompositeInsert %v4float %float_0 %44 0
|
|
OpBranch %48
|
|
%48 = OpLabel
|
|
%51 = OpPhi %v4float %44 %37 %50 %49
|
|
%52 = OpCompositeExtract %float %51 0
|
|
%53 = OpCompositeExtract %float %51 0
|
|
%54 = OpCompositeConstruct %v4float %52 %53 %float_0 %float_1
|
|
OpStore %OutColor %54
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
const std::string after =
|
|
R"(%main = OpFunction %void None %10
|
|
%28 = OpLabel
|
|
%29 = OpLoad %v4float %In0
|
|
%34 = OpAccessChain %_ptr_Uniform_uint %_ %int_0
|
|
%35 = OpLoad %uint %34
|
|
%36 = OpINotEqual %bool %35 %uint_0
|
|
OpSelectionMerge %37 None
|
|
OpBranchConditional %36 %38 %37
|
|
%38 = OpLabel
|
|
%39 = OpCompositeInsert %v4float %float_1 %29 0
|
|
OpBranch %37
|
|
%37 = OpLabel
|
|
%40 = OpPhi %v4float %29 %28 %39 %38
|
|
%41 = OpCompositeExtract %float %40 0
|
|
%42 = OpCompositeInsert %v4float %41 %27 0
|
|
%45 = OpAccessChain %_ptr_Uniform_uint %_ %int_1
|
|
%46 = OpLoad %uint %45
|
|
%47 = OpINotEqual %bool %46 %uint_0
|
|
OpSelectionMerge %48 None
|
|
OpBranchConditional %47 %49 %48
|
|
%49 = OpLabel
|
|
%50 = OpCompositeInsert %v4float %float_0 %42 0
|
|
OpBranch %48
|
|
%48 = OpLabel
|
|
%51 = OpPhi %v4float %42 %37 %50 %49
|
|
%52 = OpCompositeExtract %float %51 0
|
|
%53 = OpCompositeExtract %float %51 0
|
|
%54 = OpCompositeConstruct %v4float %52 %53 %float_0 %float_1
|
|
OpStore %OutColor %54
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SinglePassRunAndCheck<opt::DeadInsertElimPass>(
|
|
before_predefs + before, after_predefs + after, true, true);
|
|
}
|
|
|
|
// TODO(greg-lunarg): Add tests to verify handling of these cases:
|
|
//
|
|
|
|
} // anonymous namespace
|