mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-23 12:10:06 +00:00
417 lines
11 KiB
C++
417 lines
11 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 InsertExtractElimTest = PassTest<::testing::Test>;
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TEST_F(InsertExtractElimTest, Simple) {
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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 140
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//
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// in vec4 BaseColor;
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//
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// struct S_t {
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// vec4 v0;
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// vec4 v1;
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// };
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//
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// void main()
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// {
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// S_t s0;
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// s0.v1 = BaseColor;
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// gl_FragColor = s0.v1;
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// }
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const std::string 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" %BaseColor %gl_FragColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 140
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OpName %main "main"
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OpName %S_t "S_t"
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OpMemberName %S_t 0 "v0"
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OpMemberName %S_t 1 "v1"
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OpName %s0 "s0"
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OpName %BaseColor "BaseColor"
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OpName %gl_FragColor "gl_FragColor"
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%void = OpTypeVoid
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%8 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%S_t = OpTypeStruct %v4float %v4float
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%_ptr_Function_S_t = OpTypePointer Function %S_t
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%int = OpTypeInt 32 1
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%int_1 = OpConstant %int 1
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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_v4float = OpTypePointer Function %v4float
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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 before =
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R"(%main = OpFunction %void None %8
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%17 = OpLabel
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%s0 = OpVariable %_ptr_Function_S_t Function
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%18 = OpLoad %v4float %BaseColor
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%19 = OpLoad %S_t %s0
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%20 = OpCompositeInsert %S_t %18 %19 1
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OpStore %s0 %20
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%21 = OpCompositeExtract %v4float %20 1
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OpStore %gl_FragColor %21
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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 %8
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%17 = OpLabel
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%s0 = OpVariable %_ptr_Function_S_t Function
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%18 = OpLoad %v4float %BaseColor
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%19 = OpLoad %S_t %s0
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%20 = OpCompositeInsert %S_t %18 %19 1
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OpStore %s0 %20
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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::InsertExtractElimPass>(predefs + before,
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predefs + after, true, true);
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}
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TEST_F(InsertExtractElimTest, OptimizeAcrossNonConflictingInsert) {
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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 140
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//
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// in vec4 BaseColor;
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//
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// struct S_t {
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// vec4 v0;
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// vec4 v1;
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// };
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//
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// void main()
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// {
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// S_t s0;
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// s0.v1 = BaseColor;
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// s0.v0[2] = 0.0;
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// gl_FragColor = s0.v1;
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// }
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const std::string 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" %BaseColor %gl_FragColor
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 140
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OpName %main "main"
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OpName %S_t "S_t"
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OpMemberName %S_t 0 "v0"
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OpMemberName %S_t 1 "v1"
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OpName %s0 "s0"
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OpName %BaseColor "BaseColor"
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OpName %gl_FragColor "gl_FragColor"
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%void = OpTypeVoid
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%8 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%S_t = OpTypeStruct %v4float %v4float
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%_ptr_Function_S_t = OpTypePointer Function %S_t
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%int = OpTypeInt 32 1
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%int_1 = OpConstant %int 1
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%float_0 = OpConstant %float 0
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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_v4float = OpTypePointer Function %v4float
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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 before =
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R"(%main = OpFunction %void None %8
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%18 = OpLabel
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%s0 = OpVariable %_ptr_Function_S_t Function
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%19 = OpLoad %v4float %BaseColor
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%20 = OpLoad %S_t %s0
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%21 = OpCompositeInsert %S_t %19 %20 1
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%22 = OpCompositeInsert %S_t %float_0 %21 0 2
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OpStore %s0 %22
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%23 = OpCompositeExtract %v4float %22 1
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OpStore %gl_FragColor %23
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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 %8
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%18 = OpLabel
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%s0 = OpVariable %_ptr_Function_S_t Function
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%19 = OpLoad %v4float %BaseColor
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%20 = OpLoad %S_t %s0
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%21 = OpCompositeInsert %S_t %19 %20 1
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%22 = OpCompositeInsert %S_t %float_0 %21 0 2
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OpStore %s0 %22
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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::InsertExtractElimPass>(predefs + before,
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predefs + after, true, true);
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}
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TEST_F(InsertExtractElimTest, OptimizeOpaque) {
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// SPIR-V not representable in GLSL; not generatable from HLSL
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// for the moment.
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const std::string 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" %outColor %texCoords
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 140
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OpName %main "main"
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OpName %S_t "S_t"
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OpMemberName %S_t 0 "v0"
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OpMemberName %S_t 1 "v1"
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OpMemberName %S_t 2 "smp"
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OpName %outColor "outColor"
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OpName %sampler15 "sampler15"
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OpName %s0 "s0"
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OpName %texCoords "texCoords"
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OpDecorate %sampler15 DescriptorSet 0
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%void = OpTypeVoid
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%9 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v2float = OpTypeVector %float 2
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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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%14 = OpTypeImage %float 2D 0 0 0 1 Unknown
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%15 = OpTypeSampledImage %14
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%S_t = OpTypeStruct %v2float %v2float %15
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%_ptr_Function_S_t = OpTypePointer Function %S_t
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%17 = OpTypeFunction %void %_ptr_Function_S_t
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%_ptr_UniformConstant_15 = OpTypePointer UniformConstant %15
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%_ptr_Function_15 = OpTypePointer Function %15
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%sampler15 = OpVariable %_ptr_UniformConstant_15 UniformConstant
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%int_2 = OpConstant %int 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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%texCoords = OpVariable %_ptr_Input_v2float Input
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)";
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const std::string before =
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R"(%main = OpFunction %void None %9
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%25 = OpLabel
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%s0 = OpVariable %_ptr_Function_S_t Function
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%26 = OpLoad %v2float %texCoords
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%27 = OpLoad %S_t %s0
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%28 = OpCompositeInsert %S_t %26 %27 0
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%29 = OpLoad %15 %sampler15
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%30 = OpCompositeInsert %S_t %29 %28 2
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OpStore %s0 %30
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%31 = OpCompositeExtract %15 %30 2
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%32 = OpCompositeExtract %v2float %30 0
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%33 = OpImageSampleImplicitLod %v4float %31 %32
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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 %9
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%25 = OpLabel
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%s0 = OpVariable %_ptr_Function_S_t Function
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%26 = OpLoad %v2float %texCoords
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%27 = OpLoad %S_t %s0
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%28 = OpCompositeInsert %S_t %26 %27 0
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%29 = OpLoad %15 %sampler15
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%30 = OpCompositeInsert %S_t %29 %28 2
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OpStore %s0 %30
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%33 = OpImageSampleImplicitLod %v4float %29 %26
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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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SinglePassRunAndCheck<opt::InsertExtractElimPass>(predefs + before,
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predefs + after, true, true);
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}
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TEST_F(InsertExtractElimTest, ConflictingInsertPreventsOptimization) {
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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 140
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//
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// in vec4 BaseColor;
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//
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// struct S_t {
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// vec4 v0;
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// vec4 v1;
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// };
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//
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// void main()
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// {
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// S_t s0;
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// s0.v1 = BaseColor;
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// s0.v1[2] = 0.0;
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// gl_FragColor = s0.v1;
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// }
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const std::string assembly =
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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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OpName %main "main"
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OpName %S_t "S_t"
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OpMemberName %S_t 0 "v0"
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OpMemberName %S_t 1 "v1"
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OpName %s0 "s0"
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OpName %BaseColor "BaseColor"
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OpName %gl_FragColor "gl_FragColor"
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%void = OpTypeVoid
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%8 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%S_t = OpTypeStruct %v4float %v4float
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%_ptr_Function_S_t = OpTypePointer Function %S_t
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%int = OpTypeInt 32 1
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%int_1 = OpConstant %int 1
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%float_0 = OpConstant %float 0
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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_v4float = OpTypePointer Function %v4float
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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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%main = OpFunction %void None %8
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%18 = OpLabel
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%s0 = OpVariable %_ptr_Function_S_t Function
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%19 = OpLoad %v4float %BaseColor
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%20 = OpLoad %S_t %s0
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%21 = OpCompositeInsert %S_t %19 %20 1
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%22 = OpCompositeInsert %S_t %float_0 %21 1 2
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OpStore %s0 %22
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%23 = OpCompositeExtract %v4float %22 1
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OpStore %gl_FragColor %23
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::InsertExtractElimPass>(assembly,
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assembly, true, true);
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}
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TEST_F(InsertExtractElimTest, ConflictingInsertPreventsOptimization2) {
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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 140
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//
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// in vec4 BaseColor;
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//
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// struct S_t {
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// vec4 v0;
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// vec4 v1;
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// };
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//
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// void main()
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// {
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// S_t s0;
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// s0.v1[1] = 1.0;
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// s0.v1 = Baseline;
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// gl_FragColor = vec4(s0.v1[1], 0.0, 0.0, 0.0);
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// }
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const std::string assembly =
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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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OpName %main "main"
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OpName %S_t "S_t"
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OpMemberName %S_t 0 "v0"
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OpMemberName %S_t 1 "v1"
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OpName %s0 "s0"
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OpName %BaseColor "BaseColor"
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OpName %gl_FragColor "gl_FragColor"
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%void = OpTypeVoid
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%8 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%S_t = OpTypeStruct %v4float %v4float
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%_ptr_Function_S_t = OpTypePointer Function %S_t
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%int = OpTypeInt 32 1
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%int_1 = OpConstant %int 1
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%float_1 = OpConstant %float 1
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%uint = OpTypeInt 32 0
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%uint_1 = OpConstant %uint 1
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%_ptr_Function_float = OpTypePointer Function %float
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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_v4float = OpTypePointer Function %v4float
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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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%float_0 = OpConstant %float 0
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%main = OpFunction %void None %8
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%22 = OpLabel
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%s0 = OpVariable %_ptr_Function_S_t Function
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%23 = OpLoad %S_t %s0
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%24 = OpCompositeInsert %S_t %float_1 %23 1 1
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%25 = OpLoad %v4float %BaseColor
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%26 = OpCompositeInsert %S_t %25 %24 1
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%27 = OpCompositeExtract %float %26 1 1
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%28 = OpCompositeConstruct %v4float %27 %float_0 %float_0 %float_0
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OpStore %gl_FragColor %28
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::InsertExtractElimPass>(assembly,
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assembly, true, true);
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}
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// TODO(greg-lunarg): Add tests to verify handling of these cases:
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//
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} // anonymous namespace
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