mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-12-25 01:01:04 +00:00
5d2bc6f064
Fixes #5121 * If the non-semantic info instructions depended on other moved instructions the def/use manager would get corrupted.
556 lines
19 KiB
C++
556 lines
19 KiB
C++
// 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 <string>
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#include <vector>
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#include "gmock/gmock.h"
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#include "test/opt/assembly_builder.h"
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#include "test/opt/pass_fixture.h"
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#include "test/opt/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 ::testing::HasSubstr;
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using EliminateDeadFunctionsBasicTest = PassTest<::testing::Test>;
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TEST_F(EliminateDeadFunctionsBasicTest, BasicDeleteDeadFunction) {
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// The function Dead should be removed because it is never called.
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const std::vector<const char*> common_code = {
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// clang-format off
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"OpCapability Shader",
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"OpMemoryModel Logical GLSL450",
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"OpEntryPoint Fragment %main \"main\"",
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"OpName %main \"main\"",
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"OpName %Live \"Live\"",
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"%void = OpTypeVoid",
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"%7 = OpTypeFunction %void",
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"%main = OpFunction %void None %7",
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"%15 = OpLabel",
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"%16 = OpFunctionCall %void %Live",
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"%17 = OpFunctionCall %void %Live",
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"OpReturn",
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"OpFunctionEnd",
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"%Live = OpFunction %void None %7",
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"%20 = OpLabel",
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"OpReturn",
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"OpFunctionEnd"
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// clang-format on
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};
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const std::vector<const char*> dead_function = {
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// clang-format off
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"%Dead = OpFunction %void None %7",
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"%19 = OpLabel",
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"OpReturn",
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"OpFunctionEnd",
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// clang-format on
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};
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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SinglePassRunAndCheck<EliminateDeadFunctionsPass>(
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JoinAllInsts(Concat(common_code, dead_function)),
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JoinAllInsts(common_code), /* skip_nop = */ true);
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}
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TEST_F(EliminateDeadFunctionsBasicTest, BasicKeepLiveFunction) {
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// Everything is reachable from an entry point, so no functions should be
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// deleted.
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const std::vector<const char*> text = {
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// clang-format off
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"OpCapability Shader",
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"OpMemoryModel Logical GLSL450",
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"OpEntryPoint Fragment %main \"main\"",
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"OpName %main \"main\"",
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"OpName %Live1 \"Live1\"",
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"OpName %Live2 \"Live2\"",
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"%void = OpTypeVoid",
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"%7 = OpTypeFunction %void",
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"%main = OpFunction %void None %7",
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"%15 = OpLabel",
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"%16 = OpFunctionCall %void %Live2",
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"%17 = OpFunctionCall %void %Live1",
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"OpReturn",
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"OpFunctionEnd",
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"%Live1 = OpFunction %void None %7",
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"%19 = OpLabel",
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"OpReturn",
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"OpFunctionEnd",
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"%Live2 = OpFunction %void None %7",
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"%20 = OpLabel",
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"OpReturn",
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"OpFunctionEnd"
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// clang-format on
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};
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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std::string assembly = JoinAllInsts(text);
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auto result = SinglePassRunAndDisassemble<EliminateDeadFunctionsPass>(
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assembly, /* skip_nop = */ true, /* do_validation = */ false);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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EXPECT_EQ(assembly, std::get<0>(result));
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}
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TEST_F(EliminateDeadFunctionsBasicTest, BasicKeepExportFunctions) {
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// All functions are reachable. In particular, ExportedFunc and Constant are
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// reachable because ExportedFunc is exported. Nothing should be removed.
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const std::vector<const char*> text = {
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// clang-format off
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"OpCapability Shader",
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"OpCapability Linkage",
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"OpMemoryModel Logical GLSL450",
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"OpEntryPoint Fragment %main \"main\"",
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"OpName %main \"main\"",
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"OpName %ExportedFunc \"ExportedFunc\"",
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"OpName %Live \"Live\"",
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"OpDecorate %ExportedFunc LinkageAttributes \"ExportedFunc\" Export",
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"%void = OpTypeVoid",
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"%7 = OpTypeFunction %void",
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"%main = OpFunction %void None %7",
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"%15 = OpLabel",
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"OpReturn",
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"OpFunctionEnd",
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"%ExportedFunc = OpFunction %void None %7",
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"%19 = OpLabel",
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"%16 = OpFunctionCall %void %Live",
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"OpReturn",
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"OpFunctionEnd",
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"%Live = OpFunction %void None %7",
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"%20 = OpLabel",
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"OpReturn",
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"OpFunctionEnd"
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// clang-format on
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};
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SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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std::string assembly = JoinAllInsts(text);
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auto result = SinglePassRunAndDisassemble<EliminateDeadFunctionsPass>(
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assembly, /* skip_nop = */ true, /* do_validation = */ false);
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EXPECT_EQ(Pass::Status::SuccessWithoutChange, std::get<1>(result));
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EXPECT_EQ(assembly, std::get<0>(result));
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}
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TEST_F(EliminateDeadFunctionsBasicTest, BasicRemoveDecorationsAndNames) {
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// We want to remove the names and decorations associated with results that
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// are removed. This test will check for that.
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const std::string text = R"(
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OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint Vertex %main "main"
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OpName %main "main"
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OpName %Dead "Dead"
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OpName %x "x"
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OpName %y "y"
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OpName %z "z"
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OpDecorate %x RelaxedPrecision
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OpDecorate %y RelaxedPrecision
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OpDecorate %z RelaxedPrecision
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OpDecorate %6 RelaxedPrecision
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OpDecorate %7 RelaxedPrecision
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OpDecorate %8 RelaxedPrecision
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%void = OpTypeVoid
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%10 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Function_float = OpTypePointer Function %float
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%float_1 = OpConstant %float 1
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%main = OpFunction %void None %10
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%14 = OpLabel
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OpReturn
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OpFunctionEnd
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%Dead = OpFunction %void None %10
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%15 = OpLabel
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%x = OpVariable %_ptr_Function_float Function
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%y = OpVariable %_ptr_Function_float Function
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%z = OpVariable %_ptr_Function_float Function
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OpStore %x %float_1
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OpStore %y %float_1
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%6 = OpLoad %float %x
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%7 = OpLoad %float %y
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%8 = OpFAdd %float %6 %7
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OpStore %z %8
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OpReturn
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OpFunctionEnd)";
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const std::string expected_output = R"(OpCapability Shader
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OpMemoryModel Logical GLSL450
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OpEntryPoint Vertex %main "main"
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OpName %main "main"
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%void = OpTypeVoid
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%10 = OpTypeFunction %void
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%float = OpTypeFloat 32
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%_ptr_Function_float = OpTypePointer Function %float
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%float_1 = OpConstant %float 1
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%main = OpFunction %void None %10
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%14 = 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<EliminateDeadFunctionsPass>(text, expected_output,
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/* skip_nop = */ true);
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}
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TEST_F(EliminateDeadFunctionsBasicTest, DebugRemoveFunctionFromDebugFunction) {
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// We want to remove id of OpFunction from DebugFunction.
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const std::string text = R"(OpCapability Shader
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%1 = OpExtInstImport "OpenCL.DebugInfo.100"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main" %3 %4
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OpExecutionMode %2 OriginUpperLeft
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%5 = OpString "ps.hlsl"
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OpSource HLSL 600 %5 "float4 foo() {
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return 1;
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}
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float4 main(float4 color : COLOR) : SV_TARGET {
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return foo() + color;
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}
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"
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%6 = OpString "float"
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%7 = OpString "main"
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%8 = OpString "foo"
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; CHECK: [[foo:%\d+]] = OpString "foo"
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OpDecorate %3 Location 0
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OpDecorate %4 Location 0
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%uint = OpTypeInt 32 0
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%uint_32 = OpConstant %uint 32
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%float = OpTypeFloat 32
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%float_1 = OpConstant %float 1
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%v4float = OpTypeVector %float 4
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%14 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%void = OpTypeVoid
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%18 = OpTypeFunction %void
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%19 = OpTypeFunction %v4float
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%3 = OpVariable %_ptr_Input_v4float Input
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%4 = OpVariable %_ptr_Output_v4float Output
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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; CHECK: [[info_none:%\d+]] = OpExtInst %void %1 DebugInfoNone
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%20 = OpExtInst %void %1 DebugSource %5
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%21 = OpExtInst %void %1 DebugCompilationUnit 1 4 %20 HLSL
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%22 = OpExtInst %void %1 DebugTypeBasic %6 %uint_32 Float
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%23 = OpExtInst %void %1 DebugTypeVector %22 4
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%24 = OpExtInst %void %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %23 %23
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%25 = OpExtInst %void %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %23
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%26 = OpExtInst %void %1 DebugFunction %7 %24 %20 4 1 %21 %7 FlagIsProtected|FlagIsPrivate 4 %2
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%27 = OpExtInst %void %1 DebugFunction %8 %25 %20 1 1 %21 %8 FlagIsProtected|FlagIsPrivate 1 %28
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; CHECK: {{%\d+}} = OpExtInst %void %1 DebugFunction [[foo]] {{%\d+}} {{%\d+}} 1 1 {{%\d+}} {{%\d+}} FlagIsProtected|FlagIsPrivate 1 [[info_none]]
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%29 = OpExtInst %void %1 DebugLexicalBlock %20 1 14 %27
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%40 = OpExtInst %void %1 DebugInlinedAt 4 %26
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%2 = OpFunction %void None %18
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%30 = OpLabel
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%39 = OpVariable %_ptr_Function_v4float Function
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%41 = OpExtInst %void %1 DebugScope %27 %40
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OpStore %39 %14
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%32 = OpLoad %v4float %39
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%42 = OpExtInst %void %1 DebugScope %26
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%33 = OpLoad %v4float %3
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%34 = OpFAdd %v4float %32 %33
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OpStore %4 %34
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%43 = OpExtInst %void %1 DebugNoScope
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OpReturn
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OpFunctionEnd
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%28 = OpFunction %v4float None %19
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%36 = OpLabel
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OpReturnValue %14
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<EliminateDeadFunctionsPass>(text, false);
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}
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TEST_F(EliminateDeadFunctionsBasicTest,
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DebugRemoveFunctionUsingExistingDebugInfoNone) {
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// We want to remove id of OpFunction from DebugFunction.
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const std::string text = R"(OpCapability Shader
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%1 = OpExtInstImport "OpenCL.DebugInfo.100"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main" %3 %4
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OpExecutionMode %2 OriginUpperLeft
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%5 = OpString "ps.hlsl"
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OpSource HLSL 600 %5 "float4 foo() {
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return 1;
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}
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float4 main(float4 color : COLOR) : SV_TARGET {
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return foo() + color;
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}
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"
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%6 = OpString "float"
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%7 = OpString "main"
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%8 = OpString "foo"
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; CHECK: [[foo:%\d+]] = OpString "foo"
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OpDecorate %3 Location 0
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OpDecorate %4 Location 0
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%uint = OpTypeInt 32 0
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%uint_32 = OpConstant %uint 32
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%float = OpTypeFloat 32
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%float_1 = OpConstant %float 1
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%v4float = OpTypeVector %float 4
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%14 = OpConstantComposite %v4float %float_1 %float_1 %float_1 %float_1
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%_ptr_Input_v4float = OpTypePointer Input %v4float
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%_ptr_Output_v4float = OpTypePointer Output %v4float
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%void = OpTypeVoid
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%18 = OpTypeFunction %void
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%19 = OpTypeFunction %v4float
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%3 = OpVariable %_ptr_Input_v4float Input
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%4 = OpVariable %_ptr_Output_v4float Output
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%_ptr_Function_v4float = OpTypePointer Function %v4float
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; CHECK: [[info_none:%\d+]] = OpExtInst %void %1 DebugInfoNone
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%20 = OpExtInst %void %1 DebugSource %5
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%21 = OpExtInst %void %1 DebugCompilationUnit 1 4 %20 HLSL
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%22 = OpExtInst %void %1 DebugTypeBasic %6 %uint_32 Float
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%23 = OpExtInst %void %1 DebugTypeVector %22 4
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%24 = OpExtInst %void %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %23 %23
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%25 = OpExtInst %void %1 DebugTypeFunction FlagIsProtected|FlagIsPrivate %23
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%26 = OpExtInst %void %1 DebugFunction %7 %24 %20 4 1 %21 %7 FlagIsProtected|FlagIsPrivate 4 %2
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%27 = OpExtInst %void %1 DebugFunction %8 %25 %20 1 1 %21 %8 FlagIsProtected|FlagIsPrivate 1 %28
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; CHECK: {{%\d+}} = OpExtInst %void %1 DebugFunction [[foo]] {{%\d+}} {{%\d+}} 1 1 {{%\d+}} {{%\d+}} FlagIsProtected|FlagIsPrivate 1 [[info_none]]
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%29 = OpExtInst %void %1 DebugLexicalBlock %20 1 14 %27
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%35 = OpExtInst %void %1 DebugInfoNone
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%40 = OpExtInst %void %1 DebugInlinedAt 4 %26
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%2 = OpFunction %void None %18
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%30 = OpLabel
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%39 = OpVariable %_ptr_Function_v4float Function
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%41 = OpExtInst %void %1 DebugScope %27 %40
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OpStore %39 %14
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%32 = OpLoad %v4float %39
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%42 = OpExtInst %void %1 DebugScope %26
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%33 = OpLoad %v4float %3
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%34 = OpFAdd %v4float %32 %33
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OpStore %4 %34
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%43 = OpExtInst %void %1 DebugNoScope
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OpReturn
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OpFunctionEnd
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%28 = OpFunction %v4float None %19
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%36 = OpLabel
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OpReturnValue %14
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OpFunctionEnd
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)";
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SinglePassRunAndMatch<EliminateDeadFunctionsPass>(text, false);
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}
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TEST_F(EliminateDeadFunctionsBasicTest, NonSemanticInfoPersists) {
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const std::string text = R"(
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; CHECK: [[import:%\w+]] = OpExtInstImport
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; CHECK: [[void:%\w+]] = OpTypeVoid
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; CHECK-NOT: OpExtInst [[void]] [[import]] 1
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; CHECK: OpExtInst [[void]] [[import]] 2
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OpCapability Shader
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OpExtension "SPV_KHR_non_semantic_info"
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%ext = OpExtInstImport "NonSemantic.Test"
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %main "main"
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OpExecutionMode %main LocalSize 1 1 1
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%void = OpTypeVoid
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%void_fn = OpTypeFunction %void
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%main = OpFunction %void None %void_fn
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%entry = OpLabel
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OpReturn
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OpFunctionEnd
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%foo = OpFunction %void None %void_fn
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%foo_entry = OpLabel
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%non_semantic1 = OpExtInst %void %ext 1
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OpReturn
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OpFunctionEnd
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%non_semantic2 = OpExtInst %void %ext 2
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)";
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SinglePassRunAndMatch<EliminateDeadFunctionsPass>(text, true);
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}
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TEST_F(EliminateDeadFunctionsBasicTest, NonSemanticInfoRemoveDependent) {
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const std::string text = R"(
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; CHECK: [[import:%\w+]] = OpExtInstImport
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; CHECK: [[void:%\w+]] = OpTypeVoid
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; CHECK-NOT: OpExtInst [[void]] [[import]] 1
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; CHECK-NOT: OpExtInst [[void]] [[import]] 2
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; CHECK: OpExtInst [[void]] [[import]] 3
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OpCapability Shader
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OpExtension "SPV_KHR_non_semantic_info"
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%ext = OpExtInstImport "NonSemantic.Test"
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %main "main"
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OpExecutionMode %main LocalSize 1 1 1
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%void = OpTypeVoid
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%void_fn = OpTypeFunction %void
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%main = OpFunction %void None %void_fn
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%entry = OpLabel
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OpReturn
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OpFunctionEnd
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%foo = OpFunction %void None %void_fn
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%foo_entry = OpLabel
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%non_semantic1 = OpExtInst %void %ext 1
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OpReturn
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OpFunctionEnd
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%non_semantic2 = OpExtInst %void %ext 2 %foo
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%non_semantic3 = OpExtInst %void %ext 3
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)";
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SinglePassRunAndMatch<EliminateDeadFunctionsPass>(text, true);
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}
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TEST_F(EliminateDeadFunctionsBasicTest, NonSemanticInfoRemoveDependentTree) {
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const std::string text = R"(
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; CHECK: [[import:%\w+]] = OpExtInstImport
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; CHECK: [[void:%\w+]] = OpTypeVoid
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; CHECK-NOT: OpExtInst [[void]] [[import]] 1
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; CHECK-NOT: OpExtInst [[void]] [[import]] 2
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; CHECK: OpExtInst [[void]] [[import]] 3
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; CHECK-NOT: OpExtInst [[void]] [[import]] 4
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; CHECK-NOT: OpExtInst [[void]] [[import]] 5
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OpCapability Shader
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OpExtension "SPV_KHR_non_semantic_info"
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%ext = OpExtInstImport "NonSemantic.Test"
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OpMemoryModel Logical GLSL450
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OpEntryPoint GLCompute %main "main"
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OpExecutionMode %main LocalSize 1 1 1
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%void = OpTypeVoid
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%void_fn = OpTypeFunction %void
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%main = OpFunction %void None %void_fn
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%entry = OpLabel
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OpReturn
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OpFunctionEnd
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%foo = OpFunction %void None %void_fn
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%foo_entry = OpLabel
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%non_semantic1 = OpExtInst %void %ext 1
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OpReturn
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OpFunctionEnd
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%non_semantic2 = OpExtInst %void %ext 2 %foo
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%non_semantic3 = OpExtInst %void %ext 3
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%non_semantic4 = OpExtInst %void %ext 4 %non_semantic2
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%non_semantic5 = OpExtInst %void %ext 5 %non_semantic4
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)";
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SinglePassRunAndMatch<EliminateDeadFunctionsPass>(text, true);
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}
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TEST_F(EliminateDeadFunctionsBasicTest, NonSemanticInfoRemoveDebugPrintf) {
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const std::string text = R"(
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; CHECK-NOT: %foo_ = OpFunction %void None % 3
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; CHECK-NOT: % 7 = OpLabel
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; CHECK-NOT: %c = OpVariable %_ptr_Function_v4float Function
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; CHECK-NOT: % 22 = OpAccessChain %_ptr_UniformConstant_13 %samplers %int_0
|
|
; CHECK-NOT: % 23 = OpLoad % 13 % 22
|
|
; CHECK-NOT: % 27 = OpImageSampleExplicitLod %v4float % 23 % 26 Lod %float_0
|
|
; CHECK-NOT: OpStore %c % 27
|
|
; CHECK-NOT: % 31 = OpAccessChain %_ptr_Function_float %c %uint_0
|
|
; CHECK-NOT: % 32 = OpLoad %float %31
|
|
; CHECK-NOT: % 34 = OpExtInst %void %33 1 % 28 % 32
|
|
OpCapability RayTracingKHR
|
|
OpExtension "SPV_KHR_non_semantic_info"
|
|
OpExtension "SPV_KHR_ray_tracing"
|
|
%1 = OpExtInstImport "GLSL.std.450"
|
|
%33 = OpExtInstImport "NonSemantic.DebugPrintf"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint ClosestHitNV %main "main" %samplers
|
|
%28 = OpString "%f"
|
|
OpSource GLSL 460
|
|
OpSourceExtension "GL_EXT_debug_printf"
|
|
OpName %main "main"
|
|
OpName %foo_ "foo("
|
|
OpName %c "c"
|
|
OpName %samplers "samplers"
|
|
OpDecorate %samplers DescriptorSet 0
|
|
OpDecorate %samplers Binding 0
|
|
%void = OpTypeVoid
|
|
%3 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%v4float = OpTypeVector %float 4
|
|
%_ptr_Function_v4float = OpTypePointer Function %v4float
|
|
%12 = OpTypeImage %float 3D 0 0 0 1 Unknown
|
|
%13 = OpTypeSampledImage %12
|
|
%uint = OpTypeInt 32 0
|
|
%uint_1 = OpConstant %uint 1
|
|
%_arr_13_uint_1 = OpTypeArray %13 %uint_1
|
|
%_ptr_UniformConstant__arr_13_uint_1 = OpTypePointer UniformConstant %_arr_13_uint_1
|
|
%samplers = OpVariable %_ptr_UniformConstant__arr_13_uint_1 UniformConstant
|
|
%int = OpTypeInt 32 1
|
|
%int_0 = OpConstant %int 0
|
|
%_ptr_UniformConstant_13 = OpTypePointer UniformConstant %13
|
|
%v3float = OpTypeVector %float 3
|
|
%float_0 = OpConstant %float 0
|
|
%26 = OpConstantComposite %v3float %float_0 %float_0 %float_0
|
|
%uint_0 = OpConstant %uint 0
|
|
%_ptr_Function_float = OpTypePointer Function %float
|
|
%main = OpFunction %void None %3
|
|
%5 = OpLabel
|
|
%36 = OpVariable %_ptr_Function_v4float Function
|
|
%38 = OpAccessChain %_ptr_UniformConstant_13 %samplers %int_0
|
|
%39 = OpLoad %13 %38
|
|
%40 = OpImageSampleExplicitLod %v4float %39 %26 Lod %float_0
|
|
OpStore %36 %40
|
|
%41 = OpAccessChain %_ptr_Function_float %36 %uint_0
|
|
%42 = OpLoad %float %41
|
|
%43 = OpExtInst %void %33 1 %28 %42
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%foo_ = OpFunction %void None %3
|
|
%7 = OpLabel
|
|
%c = OpVariable %_ptr_Function_v4float Function
|
|
%22 = OpAccessChain %_ptr_UniformConstant_13 %samplers %int_0
|
|
%23 = OpLoad %13 %22
|
|
%27 = OpImageSampleExplicitLod %v4float %23 %26 Lod %float_0
|
|
OpStore %c %27
|
|
%31 = OpAccessChain %_ptr_Function_float %c %uint_0
|
|
%32 = OpLoad %float %31
|
|
%34 = OpExtInst %void %33 1 %28 %32
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
|
|
SetTargetEnv(SPV_ENV_VULKAN_1_2);
|
|
SinglePassRunAndMatch<EliminateDeadFunctionsPass>(text, true);
|
|
}
|
|
|
|
TEST_F(EliminateDeadFunctionsBasicTest, DependentNonSemanticChain) {
|
|
const std::string text = R"(
|
|
; CHECK: OpEntryPoint GLCompute [[main:%\w+]]
|
|
; CHECK: [[main]] = OpFunction
|
|
; CHECK-NOT: = OpFunction
|
|
; CHECK: [[ext1:%\w+]] = OpExtInst %void {{%\w+}} 1 [[main]]
|
|
; CHECK: [[ext2:%\w+]] = OpExtInst %void {{%\w+}} 2 [[ext1]]
|
|
; CHECK: [[ext3:%\w+]] = OpExtInst %void {{%\w+}} 3 [[ext1]] [[ext2]]
|
|
OpCapability Shader
|
|
OpExtension "SPV_KHR_non_semantic_info"
|
|
%1 = OpExtInstImport "NonSemantic.Test"
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint GLCompute %main "main"
|
|
OpExecutionMode %main LocalSize 1 1 1
|
|
%void = OpTypeVoid
|
|
%void_fn = OpTypeFunction %void
|
|
%main = OpFunction %void None %void_fn
|
|
%main_entry = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%dead = OpFunction %void None %void_fn
|
|
%dead_entry = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%2 = OpExtInst %void %1 1 %main
|
|
%3 = OpExtInst %void %1 2 %2
|
|
%4 = OpExtInst %void %1 3 %2 %3
|
|
)";
|
|
|
|
SetTargetEnv(SPV_ENV_VULKAN_1_0);
|
|
SinglePassRunAndMatch<EliminateDeadFunctionsPass>(text, true);
|
|
}
|
|
|
|
} // namespace
|
|
} // namespace opt
|
|
} // namespace spvtools
|