mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-27 05:40:06 +00:00
570 lines
17 KiB
C++
570 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 spvtools {
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namespace opt {
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namespace {
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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<DeadInsertElimPass>(before_predefs + before,
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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<DeadInsertElimPass>(before_predefs + before,
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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
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OpDecorate %OutColor Location 0
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%void = OpTypeVoid
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%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<DeadInsertElimPass>(before_predefs + before,
|
|
after_predefs + after, true, true);
|
|
}
|
|
|
|
// TODO(greg-lunarg): Add tests to verify handling of these cases:
|
|
//
|
|
|
|
} // namespace
|
|
} // namespace opt
|
|
} // namespace spvtools
|