mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-10-19 03:20:14 +00:00
300 lines
8.5 KiB
C++
300 lines
8.5 KiB
C++
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// Copyright (c) 2017 Google 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 DeadVariableElimTest = PassTest<::testing::Test>;
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// %dead is unused. Make sure we remove it along with its name.
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TEST_F(DeadVariableElimTest, RemoveUnreferenced) {
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const std::string before =
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R"(OpCapability Shader
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OpCapability Linkage
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main"
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 150
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OpName %main "main"
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OpName %dead "dead"
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%void = OpTypeVoid
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%5 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%dead = OpVariable %_ptr_Private_float Private
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%main = OpFunction %void None %5
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%8 = 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"(OpCapability Shader
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OpCapability Linkage
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main"
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 150
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OpName %main "main"
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%void = OpTypeVoid
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%5 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%main = OpFunction %void None %5
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%8 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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SinglePassRunAndCheck<opt::DeadVariableElimination>(before, after, true,
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true);
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}
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// Since %dead is exported, make sure we keep it. It could be referenced
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// somewhere else.
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TEST_F(DeadVariableElimTest, KeepExported) {
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const std::string before =
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R"(OpCapability Shader
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OpCapability Linkage
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main"
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 150
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OpName %main "main"
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OpName %dead "dead"
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OpDecorate %dead LinkageAttributes "dead" Export
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%void = OpTypeVoid
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%5 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%dead = OpVariable %_ptr_Private_float Private
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%main = OpFunction %void None %5
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%8 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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SinglePassRunAndCheck<opt::DeadVariableElimination>(before, before, true,
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true);
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}
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// Delete %dead because it is unreferenced. Then %initializer becomes
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// unreferenced, so remove it as well.
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TEST_F(DeadVariableElimTest, RemoveUnreferencedWithInit1) {
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const std::string before =
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R"(OpCapability Shader
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OpCapability Linkage
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main"
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 150
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OpName %main "main"
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OpName %dead "dead"
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OpName %initializer "initializer"
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%initializer = OpVariable %_ptr_Private_float Private
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%dead = OpVariable %_ptr_Private_float Private %initializer
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%main = OpFunction %void None %6
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%9 = 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"(OpCapability Shader
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OpCapability Linkage
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main"
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 150
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OpName %main "main"
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%main = OpFunction %void None %6
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%9 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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SinglePassRunAndCheck<opt::DeadVariableElimination>(before, after, true,
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true);
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}
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// Delete %dead because it is unreferenced. In this case, the initialized has
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// another reference, and should not be removed.
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TEST_F(DeadVariableElimTest, RemoveUnreferencedWithInit2) {
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const std::string before =
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R"(OpCapability Shader
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OpCapability Linkage
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main"
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 150
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OpName %main "main"
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OpName %dead "dead"
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OpName %initializer "initializer"
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%initializer = OpVariable %_ptr_Private_float Private
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%dead = OpVariable %_ptr_Private_float Private %initializer
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%main = OpFunction %void None %6
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%9 = OpLabel
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%10 = OpLoad %float %initializer
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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"(OpCapability Shader
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OpCapability Linkage
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main"
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 150
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OpName %main "main"
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OpName %initializer "initializer"
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%initializer = OpVariable %_ptr_Private_float Private
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%main = OpFunction %void None %6
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%9 = OpLabel
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%10 = OpLoad %float %initializer
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OpReturn
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OpFunctionEnd
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)";
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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SinglePassRunAndCheck<opt::DeadVariableElimination>(before, after, true,
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true);
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}
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// Keep %live because it is used, and its initializer.
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TEST_F(DeadVariableElimTest, KeepReferenced) {
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const std::string before =
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R"(OpCapability Shader
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OpCapability Linkage
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %main "main"
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OpExecutionMode %main OriginUpperLeft
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OpSource GLSL 150
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OpName %main "main"
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OpName %live "live"
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OpName %initializer "initializer"
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Private_float = OpTypePointer Private %float
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%initializer = OpVariable %_ptr_Private_float Private
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%live = OpVariable %_ptr_Private_float Private %initializer
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%main = OpFunction %void None %6
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%9 = OpLabel
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%10 = OpLoad %float %live
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OpReturn
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OpFunctionEnd
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)";
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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SinglePassRunAndCheck<opt::DeadVariableElimination>(before, before, true,
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true);
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}
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// This test that the decoration associated with a variable are removed when the
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// variable is removed.
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TEST_F(DeadVariableElimTest, RemoveVariableAndDecorations) {
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const std::string before =
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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 Vertex %main "main"
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OpSource GLSL 450
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OpName %main "main"
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OpName %B "B"
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OpMemberName %B 0 "a"
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OpName %Bdat "Bdat"
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OpMemberDecorate %B 0 Offset 0
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OpDecorate %B BufferBlock
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OpDecorate %Bdat DescriptorSet 0
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OpDecorate %Bdat Binding 0
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%uint = OpTypeInt 32 0
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%B = OpTypeStruct %uint
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%_ptr_Uniform_B = OpTypePointer Uniform %B
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%Bdat = OpVariable %_ptr_Uniform_B Uniform
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%uint_1 = OpConstant %uint 1
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%main = OpFunction %void None %6
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%13 = 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"(OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Vertex %main "main"
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OpSource GLSL 450
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OpName %main "main"
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OpName %B "B"
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OpMemberName %B 0 "a"
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OpMemberDecorate %B 0 Offset 0
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OpDecorate %B BufferBlock
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%uint = OpTypeInt 32 0
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%B = OpTypeStruct %uint
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%_ptr_Uniform_B = OpTypePointer Uniform %B
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%int = OpTypeInt 32 1
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%int_0 = OpConstant %int 0
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%uint_1 = OpConstant %uint 1
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%_ptr_Uniform_uint = OpTypePointer Uniform %uint
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%main = OpFunction %void None %6
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%13 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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SinglePassRunAndCheck<opt::DeadVariableElimination>(before, after, true,
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true);
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}
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} // namespace
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