third_party/SPIRV-Tools/test/opt/compact_ids_test.cpp - SwiftShader - Git at Google

 // Copyright (c) 2017 Google Inc.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 #include <memory>
 #include <vector>

 #include "gmock/gmock.h"
 #include "spirv-tools/libspirv.hpp"
 #include "spirv-tools/optimizer.hpp"
 #include "test/opt/pass_fixture.h"
 #include "test/opt/pass_utils.h"

 namespace spvtools {
 namespace opt {
 namespace {

 using CompactIdsTest = PassTest<::testing::Test>;

 TEST_F(CompactIdsTest, PassOff) {
   const std::string before =
       R"(OpCapability Addresses
 OpCapability Kernel
 OpCapability GenericPointer
 OpCapability Linkage
 OpMemoryModel Physical32 OpenCL
 %99 = OpTypeInt 32 0
 %10 = OpTypeVector %99 2
 %20 = OpConstant %99 2
 %30 = OpTypeArray %99 %20
 )";

   const std::string after = before;

   SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
   SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
   SinglePassRunAndCheck<NullPass>(before, after, false, false);
 }

 TEST_F(CompactIdsTest, PassOn) {
   const std::string before =
       R"(OpCapability Addresses
 OpCapability Kernel
 OpCapability GenericPointer
 OpCapability Linkage
 OpMemoryModel Physical32 OpenCL
 OpEntryPoint Kernel %3 "simple_kernel"
 %99 = OpTypeInt 32 0
 %10 = OpTypeVector %99 2
 %20 = OpConstant %99 2
 %30 = OpTypeArray %99 %20
 %40 = OpTypeVoid
 %50 = OpTypeFunction %40
  %3 = OpFunction %40 None %50
 %70 = OpLabel
 OpReturn
 OpFunctionEnd
 )";

   const std::string after =
       R"(OpCapability Addresses
 OpCapability Kernel
 OpCapability GenericPointer
 OpCapability Linkage
 OpMemoryModel Physical32 OpenCL
 OpEntryPoint Kernel %1 "simple_kernel"
 %2 = OpTypeInt 32 0
 %3 = OpTypeVector %2 2
 %4 = OpConstant %2 2
 %5 = OpTypeArray %2 %4
 %6 = OpTypeVoid
 %7 = OpTypeFunction %6
 %1 = OpFunction %6 None %7
 %8 = OpLabel
 OpReturn
 OpFunctionEnd
 )";

   SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
   SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
   SinglePassRunAndCheck<CompactIdsPass>(before, after, false, false);
 }

 TEST_F(CompactIdsTest, DebugScope) {
   const std::string text =
       R"(OpCapability Addresses
 OpCapability Kernel
 OpCapability GenericPointer
 OpCapability Linkage
 %5 = OpExtInstImport "OpenCL.DebugInfo.100"
 OpMemoryModel Physical32 OpenCL
 OpEntryPoint Kernel %3 "simple_kernel"
 %2 = OpString "test"
 %99 = OpTypeInt 32 0
 %10 = OpTypeVector %99 2
 %20 = OpConstant %99 2
 %30 = OpTypeArray %99 %20
 %40 = OpTypeVoid
 %50 = OpTypeFunction %40
 %11 = OpExtInst %40 %5 DebugSource %2
 %12 = OpExtInst %40 %5 DebugCompilationUnit 1 4 %11 HLSL
 %13 = OpExtInst %40 %5 DebugTypeFunction FlagIsProtected|FlagIsPrivate %40

 ; CHECK: [[fn:%\w+]] = OpExtInst {{%\w+}} {{%\w+}} DebugFunction
 %14 = OpExtInst %40 %5 DebugFunction %2 %13 %11 0 0 %12 %2 FlagIsProtected|FlagIsPrivate 0 %3
  %3 = OpFunction %40 None %50
 %70 = OpLabel

 ; CHECK: DebugScope [[fn]]
 %19 = OpExtInst %40 %5 DebugScope %14
 OpReturn
 OpFunctionEnd
 )";

   SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
   SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
   SinglePassRunAndMatch<CompactIdsPass>(text, true);
 }

 TEST(CompactIds, InstructionResultIsUpdated) {
   // For https://github.com/KhronosGroup/SPIRV-Tools/issues/827
   // In that bug, the compact Ids pass was directly updating the result Id
   // word for an OpFunction instruction, but not updating the cached
   // result_id_ in that Instruction object.
   //
   // This test is a bit cheesy.  We don't expose internal interfaces enough
   // to see the inconsistency.  So reproduce the original scenario, with
   // compact ids followed by a pass that trips up on the inconsistency.

   const std::string input(R"(OpCapability Shader
 OpMemoryModel Logical Simple
 OpEntryPoint GLCompute %100 "main"
 %200 = OpTypeVoid
 %300 = OpTypeFunction %200
 %100 = OpFunction %200 None %300
 %400 = OpLabel
 OpReturn
 OpFunctionEnd
 )");

   std::vector<uint32_t> binary;
   const spv_target_env env = SPV_ENV_UNIVERSAL_1_0;
   spvtools::SpirvTools tools(env);
   auto assembled = tools.Assemble(
       input, &binary, SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
   EXPECT_TRUE(assembled);

   spvtools::Optimizer optimizer(env);
   optimizer.RegisterPass(CreateCompactIdsPass());
   // The exhaustive inliner will use the result_id
   optimizer.RegisterPass(CreateInlineExhaustivePass());

   // This should not crash!
   optimizer.Run(binary.data(), binary.size(), &binary);

   std::string disassembly;
   tools.Disassemble(binary, &disassembly, SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);

   const std::string expected(R"(OpCapability Shader
 OpMemoryModel Logical Simple
 OpEntryPoint GLCompute %1 "main"
 %2 = OpTypeVoid
 %3 = OpTypeFunction %2
 %1 = OpFunction %2 None %3
 %4 = OpLabel
 OpReturn
 OpFunctionEnd
 )");

   EXPECT_THAT(disassembly, ::testing::Eq(expected));
 }

 TEST(CompactIds, HeaderIsUpdated) {
   const std::string input(R"(OpCapability Shader
 OpMemoryModel Logical Simple
 OpEntryPoint GLCompute %100 "main"
 %200 = OpTypeVoid
 %300 = OpTypeFunction %200
 %100 = OpFunction %200 None %300
 %400 = OpLabel
 OpReturn
 OpFunctionEnd
 )");

   std::vector<uint32_t> binary;
   const spv_target_env env = SPV_ENV_UNIVERSAL_1_0;
   spvtools::SpirvTools tools(env);
   auto assembled = tools.Assemble(
       input, &binary, SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
   EXPECT_TRUE(assembled);

   spvtools::Optimizer optimizer(env);
   optimizer.RegisterPass(CreateCompactIdsPass());
   // The exhaustive inliner will use the result_id
   optimizer.RegisterPass(CreateInlineExhaustivePass());

   // This should not crash!
   optimizer.Run(binary.data(), binary.size(), &binary);

   std::string disassembly;
   tools.Disassemble(binary, &disassembly, SPV_BINARY_TO_TEXT_OPTION_NONE);

   const std::string expected(R"(; SPIR-V
 ; Version: 1.0
 ; Generator: Khronos SPIR-V Tools Assembler; 0
 ; Bound: 5
 ; Schema: 0
 OpCapability Shader
 OpMemoryModel Logical Simple
 OpEntryPoint GLCompute %1 "main"
 %2 = OpTypeVoid
 %3 = OpTypeFunction %2
 %1 = OpFunction %2 None %3
 %4 = OpLabel
 OpReturn
 OpFunctionEnd
 )");

   EXPECT_THAT(disassembly, ::testing::Eq(expected));
 }

 // Test context consistency check after invalidating
 // CFG and others by compact IDs Pass.
 // Uses a GLSL shader with named labels for variety
 TEST(CompactIds, ConsistentCheck) {
   const std::string input(R"(OpCapability Shader
 OpMemoryModel Logical GLSL450
 OpEntryPoint Fragment %main "main" %in_var_A %out_var_SV_TARGET
 OpExecutionMode %main OriginUpperLeft
 OpSource HLSL 600
 OpName %main "main"
 OpName %in_var_A "in.var.A"
 OpName %out_var_SV_TARGET "out.var.SV_TARGET"
 OpDecorate %in_var_A Location 0
 OpDecorate %out_var_SV_TARGET Location 0
 %void = OpTypeVoid
 %3 = OpTypeFunction %void
 %float = OpTypeFloat 32
 %v4float = OpTypeVector %float 4
 %_ptr_Input_v4float = OpTypePointer Input %v4float
 %_ptr_Output_v4float = OpTypePointer Output %v4float
 %in_var_A = OpVariable %_ptr_Input_v4float Input
 %out_var_SV_TARGET = OpVariable %_ptr_Output_v4float Output
 %main = OpFunction %void None %3
 %5 = OpLabel
 %12 = OpLoad %v4float %in_var_A
 %23 = OpVectorShuffle %v4float %12 %12 0 0 0 1
 OpStore %out_var_SV_TARGET %23
 OpReturn
 OpFunctionEnd
 )");

   spvtools::SpirvTools tools(SPV_ENV_UNIVERSAL_1_1);
   std::unique_ptr<IRContext> context =
       BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, input,
                   SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
   ASSERT_NE(context, nullptr);

   CompactIdsPass compact_id_pass;
   context->BuildInvalidAnalyses(compact_id_pass.GetPreservedAnalyses());
   const auto status = compact_id_pass.Run(context.get());
   ASSERT_NE(status, Pass::Status::Failure);
   EXPECT_TRUE(context->IsConsistent());

   // Test output just in case
   std::vector<uint32_t> binary;
   context->module()->ToBinary(&binary, false);
   std::string disassembly;
   tools.Disassemble(binary, &disassembly,
                     SpirvTools::kDefaultDisassembleOption);

   const std::string expected(R"(OpCapability Shader
 OpMemoryModel Logical GLSL450
 OpEntryPoint Fragment %main "main" %in_var_A %out_var_SV_TARGET
 OpExecutionMode %main OriginUpperLeft
 OpSource HLSL 600
 OpName %main "main"
 OpName %in_var_A "in.var.A"
 OpName %out_var_SV_TARGET "out.var.SV_TARGET"
 OpDecorate %in_var_A Location 0
 OpDecorate %out_var_SV_TARGET Location 0
 %void = OpTypeVoid
 %5 = OpTypeFunction %void
 %float = OpTypeFloat 32
 %v4float = OpTypeVector %float 4
 %_ptr_Input_v4float = OpTypePointer Input %v4float
 %_ptr_Output_v4float = OpTypePointer Output %v4float
 %in_var_A = OpVariable %_ptr_Input_v4float Input
 %out_var_SV_TARGET = OpVariable %_ptr_Output_v4float Output
 %main = OpFunction %void None %5
 %10 = OpLabel
 %11 = OpLoad %v4float %in_var_A
 %12 = OpVectorShuffle %v4float %11 %11 0 0 0 1
 OpStore %out_var_SV_TARGET %12
 OpReturn
 OpFunctionEnd
 )");

   EXPECT_THAT(disassembly, ::testing::Eq(expected));
 }

 TEST(CompactIds, ResetIdBound) {
   const std::string input(R"(OpCapability Shader
 OpMemoryModel Logical GLSL450
 OpEntryPoint Fragment %1 "main"
 OpExecutionMode %1 OriginUpperLeft
 %void = OpTypeVoid
 %3 = OpTypeFunction %void
 %1 = OpFunction %void None %3
 %4 = OpLabel
 OpReturn
 OpFunctionEnd
 )");

   spvtools::SpirvTools tools(SPV_ENV_UNIVERSAL_1_1);
   std::unique_ptr<IRContext> context =
       BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, input,
                   SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
   ASSERT_NE(context, nullptr);

   CompactIdsPass compact_id_pass;
   context->module()->SetIdBound(20000);
   const auto status = compact_id_pass.Run(context.get());
   EXPECT_EQ(status, Pass::Status::SuccessWithChange);
   EXPECT_EQ(context->module()->id_bound(), 5);

   // Test output just in case
   std::vector<uint32_t> binary;
   context->module()->ToBinary(&binary, false);
   std::string disassembly;
   tools.Disassemble(binary, &disassembly,
                     SpirvTools::kDefaultDisassembleOption);

   EXPECT_THAT(disassembly, ::testing::Eq(input));
 }

 }  // namespace
 }  // namespace opt
 }  // namespace spvtools
	// Copyright (c) 2017 Google Inc.
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	#include <memory>
	#include <vector>

	#include "gmock/gmock.h"
	#include "spirv-tools/libspirv.hpp"
	#include "spirv-tools/optimizer.hpp"
	#include "test/opt/pass_fixture.h"
	#include "test/opt/pass_utils.h"

	namespace spvtools {
	namespace opt {
	namespace {

	using CompactIdsTest = PassTest<::testing::Test>;

	TEST_F(CompactIdsTest, PassOff) {
	const std::string before =
	R"(OpCapability Addresses
	OpCapability Kernel
	OpCapability GenericPointer
	OpCapability Linkage
	OpMemoryModel Physical32 OpenCL
	%99 = OpTypeInt 32 0
	%10 = OpTypeVector %99 2
	%20 = OpConstant %99 2
	%30 = OpTypeArray %99 %20
	)";

	const std::string after = before;

	SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
	SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
	SinglePassRunAndCheck<NullPass>(before, after, false, false);
	}

	TEST_F(CompactIdsTest, PassOn) {
	const std::string before =
	R"(OpCapability Addresses
	OpCapability Kernel
	OpCapability GenericPointer
	OpCapability Linkage
	OpMemoryModel Physical32 OpenCL
	OpEntryPoint Kernel %3 "simple_kernel"
	%99 = OpTypeInt 32 0
	%10 = OpTypeVector %99 2
	%20 = OpConstant %99 2
	%30 = OpTypeArray %99 %20
	%40 = OpTypeVoid
	%50 = OpTypeFunction %40
	%3 = OpFunction %40 None %50
	%70 = OpLabel
	OpReturn
	OpFunctionEnd
	)";

	const std::string after =
	R"(OpCapability Addresses
	OpCapability Kernel
	OpCapability GenericPointer
	OpCapability Linkage
	OpMemoryModel Physical32 OpenCL
	OpEntryPoint Kernel %1 "simple_kernel"
	%2 = OpTypeInt 32 0
	%3 = OpTypeVector %2 2
	%4 = OpConstant %2 2
	%5 = OpTypeArray %2 %4
	%6 = OpTypeVoid
	%7 = OpTypeFunction %6
	%1 = OpFunction %6 None %7
	%8 = OpLabel
	OpReturn
	OpFunctionEnd
	)";

	SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
	SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
	SinglePassRunAndCheck<CompactIdsPass>(before, after, false, false);
	}

	TEST_F(CompactIdsTest, DebugScope) {
	const std::string text =
	R"(OpCapability Addresses
	OpCapability Kernel
	OpCapability GenericPointer
	OpCapability Linkage
	%5 = OpExtInstImport "OpenCL.DebugInfo.100"
	OpMemoryModel Physical32 OpenCL
	OpEntryPoint Kernel %3 "simple_kernel"
	%2 = OpString "test"
	%99 = OpTypeInt 32 0
	%10 = OpTypeVector %99 2
	%20 = OpConstant %99 2
	%30 = OpTypeArray %99 %20
	%40 = OpTypeVoid
	%50 = OpTypeFunction %40
	%11 = OpExtInst %40 %5 DebugSource %2
	%12 = OpExtInst %40 %5 DebugCompilationUnit 1 4 %11 HLSL
	%13 = OpExtInst %40 %5 DebugTypeFunction FlagIsProtected\|FlagIsPrivate %40

	; CHECK: [[fn:%\w+]] = OpExtInst {{%\w+}} {{%\w+}} DebugFunction
	%14 = OpExtInst %40 %5 DebugFunction %2 %13 %11 0 0 %12 %2 FlagIsProtected\|FlagIsPrivate 0 %3
	%3 = OpFunction %40 None %50
	%70 = OpLabel

	; CHECK: DebugScope [[fn]]
	%19 = OpExtInst %40 %5 DebugScope %14
	OpReturn
	OpFunctionEnd
	)";

	SetAssembleOptions(SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
	SetDisassembleOptions(SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);
	SinglePassRunAndMatch<CompactIdsPass>(text, true);
	}

	TEST(CompactIds, InstructionResultIsUpdated) {
	// For https://github.com/KhronosGroup/SPIRV-Tools/issues/827
	// In that bug, the compact Ids pass was directly updating the result Id
	// word for an OpFunction instruction, but not updating the cached
	// result_id_ in that Instruction object.
	//
	// This test is a bit cheesy. We don't expose internal interfaces enough
	// to see the inconsistency. So reproduce the original scenario, with
	// compact ids followed by a pass that trips up on the inconsistency.

	const std::string input(R"(OpCapability Shader
	OpMemoryModel Logical Simple
	OpEntryPoint GLCompute %100 "main"
	%200 = OpTypeVoid
	%300 = OpTypeFunction %200
	%100 = OpFunction %200 None %300
	%400 = OpLabel
	OpReturn
	OpFunctionEnd
	)");

	std::vector<uint32_t> binary;
	const spv_target_env env = SPV_ENV_UNIVERSAL_1_0;
	spvtools::SpirvTools tools(env);
	auto assembled = tools.Assemble(
	input, &binary, SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
	EXPECT_TRUE(assembled);

	spvtools::Optimizer optimizer(env);
	optimizer.RegisterPass(CreateCompactIdsPass());
	// The exhaustive inliner will use the result_id
	optimizer.RegisterPass(CreateInlineExhaustivePass());

	// This should not crash!
	optimizer.Run(binary.data(), binary.size(), &binary);

	std::string disassembly;
	tools.Disassemble(binary, &disassembly, SPV_BINARY_TO_TEXT_OPTION_NO_HEADER);

	const std::string expected(R"(OpCapability Shader
	OpMemoryModel Logical Simple
	OpEntryPoint GLCompute %1 "main"
	%2 = OpTypeVoid
	%3 = OpTypeFunction %2
	%1 = OpFunction %2 None %3
	%4 = OpLabel
	OpReturn
	OpFunctionEnd
	)");

	EXPECT_THAT(disassembly, ::testing::Eq(expected));
	}

	TEST(CompactIds, HeaderIsUpdated) {
	const std::string input(R"(OpCapability Shader
	OpMemoryModel Logical Simple
	OpEntryPoint GLCompute %100 "main"
	%200 = OpTypeVoid
	%300 = OpTypeFunction %200
	%100 = OpFunction %200 None %300
	%400 = OpLabel
	OpReturn
	OpFunctionEnd
	)");

	std::vector<uint32_t> binary;
	const spv_target_env env = SPV_ENV_UNIVERSAL_1_0;
	spvtools::SpirvTools tools(env);
	auto assembled = tools.Assemble(
	input, &binary, SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
	EXPECT_TRUE(assembled);

	spvtools::Optimizer optimizer(env);
	optimizer.RegisterPass(CreateCompactIdsPass());
	// The exhaustive inliner will use the result_id
	optimizer.RegisterPass(CreateInlineExhaustivePass());

	// This should not crash!
	optimizer.Run(binary.data(), binary.size(), &binary);

	std::string disassembly;
	tools.Disassemble(binary, &disassembly, SPV_BINARY_TO_TEXT_OPTION_NONE);

	const std::string expected(R"(; SPIR-V
	; Version: 1.0
	; Generator: Khronos SPIR-V Tools Assembler; 0
	; Bound: 5
	; Schema: 0
	OpCapability Shader
	OpMemoryModel Logical Simple
	OpEntryPoint GLCompute %1 "main"
	%2 = OpTypeVoid
	%3 = OpTypeFunction %2
	%1 = OpFunction %2 None %3
	%4 = OpLabel
	OpReturn
	OpFunctionEnd
	)");

	EXPECT_THAT(disassembly, ::testing::Eq(expected));
	}

	// Test context consistency check after invalidating
	// CFG and others by compact IDs Pass.
	// Uses a GLSL shader with named labels for variety
	TEST(CompactIds, ConsistentCheck) {
	const std::string input(R"(OpCapability Shader
	OpMemoryModel Logical GLSL450
	OpEntryPoint Fragment %main "main" %in_var_A %out_var_SV_TARGET
	OpExecutionMode %main OriginUpperLeft
	OpSource HLSL 600
	OpName %main "main"
	OpName %in_var_A "in.var.A"
	OpName %out_var_SV_TARGET "out.var.SV_TARGET"
	OpDecorate %in_var_A Location 0
	OpDecorate %out_var_SV_TARGET Location 0
	%void = OpTypeVoid
	%3 = OpTypeFunction %void
	%float = OpTypeFloat 32
	%v4float = OpTypeVector %float 4
	%_ptr_Input_v4float = OpTypePointer Input %v4float
	%_ptr_Output_v4float = OpTypePointer Output %v4float
	%in_var_A = OpVariable %_ptr_Input_v4float Input
	%out_var_SV_TARGET = OpVariable %_ptr_Output_v4float Output
	%main = OpFunction %void None %3
	%5 = OpLabel
	%12 = OpLoad %v4float %in_var_A
	%23 = OpVectorShuffle %v4float %12 %12 0 0 0 1
	OpStore %out_var_SV_TARGET %23
	OpReturn
	OpFunctionEnd
	)");

	spvtools::SpirvTools tools(SPV_ENV_UNIVERSAL_1_1);
	std::unique_ptr<IRContext> context =
	BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, input,
	SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
	ASSERT_NE(context, nullptr);

	CompactIdsPass compact_id_pass;
	context->BuildInvalidAnalyses(compact_id_pass.GetPreservedAnalyses());
	const auto status = compact_id_pass.Run(context.get());
	ASSERT_NE(status, Pass::Status::Failure);
	EXPECT_TRUE(context->IsConsistent());

	// Test output just in case
	std::vector<uint32_t> binary;
	context->module()->ToBinary(&binary, false);
	std::string disassembly;
	tools.Disassemble(binary, &disassembly,
	SpirvTools::kDefaultDisassembleOption);

	const std::string expected(R"(OpCapability Shader
	OpMemoryModel Logical GLSL450
	OpEntryPoint Fragment %main "main" %in_var_A %out_var_SV_TARGET
	OpExecutionMode %main OriginUpperLeft
	OpSource HLSL 600
	OpName %main "main"
	OpName %in_var_A "in.var.A"
	OpName %out_var_SV_TARGET "out.var.SV_TARGET"
	OpDecorate %in_var_A Location 0
	OpDecorate %out_var_SV_TARGET Location 0
	%void = OpTypeVoid
	%5 = OpTypeFunction %void
	%float = OpTypeFloat 32
	%v4float = OpTypeVector %float 4
	%_ptr_Input_v4float = OpTypePointer Input %v4float
	%_ptr_Output_v4float = OpTypePointer Output %v4float
	%in_var_A = OpVariable %_ptr_Input_v4float Input
	%out_var_SV_TARGET = OpVariable %_ptr_Output_v4float Output
	%main = OpFunction %void None %5
	%10 = OpLabel
	%11 = OpLoad %v4float %in_var_A
	%12 = OpVectorShuffle %v4float %11 %11 0 0 0 1
	OpStore %out_var_SV_TARGET %12
	OpReturn
	OpFunctionEnd
	)");

	EXPECT_THAT(disassembly, ::testing::Eq(expected));
	}

	TEST(CompactIds, ResetIdBound) {
	const std::string input(R"(OpCapability Shader
	OpMemoryModel Logical GLSL450
	OpEntryPoint Fragment %1 "main"
	OpExecutionMode %1 OriginUpperLeft
	%void = OpTypeVoid
	%3 = OpTypeFunction %void
	%1 = OpFunction %void None %3
	%4 = OpLabel
	OpReturn
	OpFunctionEnd
	)");

	spvtools::SpirvTools tools(SPV_ENV_UNIVERSAL_1_1);
	std::unique_ptr<IRContext> context =
	BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, input,
	SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
	ASSERT_NE(context, nullptr);

	CompactIdsPass compact_id_pass;
	context->module()->SetIdBound(20000);
	const auto status = compact_id_pass.Run(context.get());
	EXPECT_EQ(status, Pass::Status::SuccessWithChange);
	EXPECT_EQ(context->module()->id_bound(), 5);

	// Test output just in case
	std::vector<uint32_t> binary;
	context->module()->ToBinary(&binary, false);
	std::string disassembly;
	tools.Disassemble(binary, &disassembly,
	SpirvTools::kDefaultDisassembleOption);

	EXPECT_THAT(disassembly, ::testing::Eq(input));
	}

	} // namespace
	} // namespace opt
	} // namespace spvtools