mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-30 15:00:06 +00:00
338 lines
8.4 KiB
C++
338 lines
8.4 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 BlockMergeTest = PassTest<::testing::Test>;
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TEST_F(BlockMergeTest, Simple) {
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// Note: SPIR-V hand edited to insert block boundary
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// between two statements in main.
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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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// void main()
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// {
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// vec4 v = BaseColor;
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// gl_FragColor = v;
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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 %v "v"
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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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%7 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%_ptr_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 %7
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%13 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%14 = OpLoad %v4float %BaseColor
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OpStore %v %14
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OpBranch %15
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%15 = OpLabel
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%16 = OpLoad %v4float %v
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OpStore %gl_FragColor %16
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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 %7
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%13 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%14 = OpLoad %v4float %BaseColor
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OpStore %v %14
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%16 = OpLoad %v4float %v
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OpStore %gl_FragColor %16
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::BlockMergePass>(
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predefs + before, predefs + after, true, true);
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}
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TEST_F(BlockMergeTest, EmptyBlock) {
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// Note: SPIR-V hand edited to insert empty block
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// after two statements in main.
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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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// void main()
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// {
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// vec4 v = BaseColor;
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// gl_FragColor = v;
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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 %v "v"
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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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%7 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%_ptr_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 %7
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%13 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%14 = OpLoad %v4float %BaseColor
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OpStore %v %14
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OpBranch %15
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%15 = OpLabel
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%16 = OpLoad %v4float %v
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OpStore %gl_FragColor %16
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OpBranch %17
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%17 = OpLabel
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OpBranch %18
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%18 = OpLabel
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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 %7
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%13 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%14 = OpLoad %v4float %BaseColor
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OpStore %v %14
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%16 = OpLoad %v4float %v
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OpStore %gl_FragColor %16
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::BlockMergePass>(
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predefs + before, predefs + after, true, true);
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}
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TEST_F(BlockMergeTest, NoOptOfMergeOrContinueBlock) {
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// Note: SPIR-V hand edited remove dead branch and add block
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// before continue block
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//
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// #version 140
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// in vec4 BaseColor;
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//
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// void main()
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// {
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// while (true) {
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// break;
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// }
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// gl_FragColor = BaseColor;
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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" %gl_FragColor %BaseColor
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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 %gl_FragColor "gl_FragColor"
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OpName %BaseColor "BaseColor"
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%bool = OpTypeBool
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%true = OpConstantTrue %bool
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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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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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%main = OpFunction %void None %6
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%13 = OpLabel
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OpBranch %14
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%14 = OpLabel
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OpLoopMerge %15 %16 None
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OpBranch %17
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%17 = OpLabel
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OpBranch %15
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%18 = OpLabel
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OpBranch %16
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%16 = OpLabel
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OpBranch %14
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%15 = OpLabel
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%19 = OpLoad %v4float %BaseColor
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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::BlockMergePass>(
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assembly, assembly, true, true);
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}
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TEST_F(BlockMergeTest, NestedInControlFlow) {
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// Note: SPIR-V hand edited to insert block boundary
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// between OpFMul and OpStore in then-part.
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//
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// #version 140
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// in vec4 BaseColor;
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//
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// layout(std140) uniform U_t
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// {
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// 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 = BaseColor;
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// if (g_B)
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// vec4 v = v * 0.25;
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// gl_FragColor = v;
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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 %v "v"
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OpName %BaseColor "BaseColor"
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OpName %U_t "U_t"
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OpMemberName %U_t 0 "g_B"
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OpName %_ ""
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OpName %v_0 "v"
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OpName %gl_FragColor "gl_FragColor"
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OpMemberDecorate %U_t 0 Offset 0
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OpDecorate %U_t Block
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OpDecorate %_ DescriptorSet 0
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%void = OpTypeVoid
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%10 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%v4float = OpTypeVector %float 4
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%BaseColor = OpVariable %_ptr_Input_v4float Input
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%uint = OpTypeInt 32 0
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%U_t = OpTypeStruct %uint
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%_ptr_Uniform_U_t = OpTypePointer Uniform %U_t
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%_ = OpVariable %_ptr_Uniform_U_t Uniform
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%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_0_25 = OpConstant %float 0.25
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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 %10
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%24 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%v_0 = OpVariable %_ptr_Function_v4float Function
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%25 = OpLoad %v4float %BaseColor
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OpStore %v %25
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%26 = OpAccessChain %_ptr_Uniform_uint %_ %int_0
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%27 = OpLoad %uint %26
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%28 = OpINotEqual %bool %27 %uint_0
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OpSelectionMerge %29 None
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OpBranchConditional %28 %30 %29
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%30 = OpLabel
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%31 = OpLoad %v4float %v
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%32 = OpVectorTimesScalar %v4float %31 %float_0_25
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OpBranch %33
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%33 = OpLabel
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OpStore %v_0 %32
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OpBranch %29
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%29 = OpLabel
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%34 = OpLoad %v4float %v
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OpStore %gl_FragColor %34
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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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%24 = OpLabel
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%v = OpVariable %_ptr_Function_v4float Function
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%v_0 = OpVariable %_ptr_Function_v4float Function
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%25 = OpLoad %v4float %BaseColor
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OpStore %v %25
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%26 = OpAccessChain %_ptr_Uniform_uint %_ %int_0
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%27 = OpLoad %uint %26
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%28 = OpINotEqual %bool %27 %uint_0
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OpSelectionMerge %29 None
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OpBranchConditional %28 %30 %29
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%30 = OpLabel
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%31 = OpLoad %v4float %v
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%32 = OpVectorTimesScalar %v4float %31 %float_0_25
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OpStore %v_0 %32
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OpBranch %29
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%29 = OpLabel
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%34 = OpLoad %v4float %v
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OpStore %gl_FragColor %34
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OpReturn
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OpFunctionEnd
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)";
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SinglePassRunAndCheck<opt::BlockMergePass>(
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predefs + before, predefs + after, 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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// More complex control flow
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// Others?
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} // anonymous namespace
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