mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-23 12:10:06 +00:00
2e4563d94f
Added documentation to the ir context to indicates that TakeNextId() returns 0 when the max id is reached. TODOs were added to each call sight so that we know where we have to start to handle this case. Handle id overflow in |SplitLoopHeader|. Handle id overflow in |GetOrCreatePreHeaderBlock|. Handle failure to create preheader in LICM. Part of https://github.com/KhronosGroup/SPIRV-Tools/issues/1841.
670 lines
22 KiB
C++
670 lines
22 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 <algorithm>
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#include <memory>
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#include <string>
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#include <utility>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "source/opt/ir_context.h"
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#include "source/opt/pass.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 Analysis = IRContext::Analysis;
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using ::testing::Each;
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using ::testing::UnorderedElementsAre;
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class DummyPassPreservesNothing : public Pass {
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public:
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DummyPassPreservesNothing(Status s) : Pass(), status_to_return_(s) {}
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const char* name() const override { return "dummy-pass"; }
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Status Process() override { return status_to_return_; }
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private:
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Status status_to_return_;
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};
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class DummyPassPreservesAll : public Pass {
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public:
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DummyPassPreservesAll(Status s) : Pass(), status_to_return_(s) {}
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const char* name() const override { return "dummy-pass"; }
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Status Process() override { return status_to_return_; }
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Analysis GetPreservedAnalyses() override {
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return Analysis(IRContext::kAnalysisEnd - 1);
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}
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private:
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Status status_to_return_;
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};
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class DummyPassPreservesFirst : public Pass {
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public:
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DummyPassPreservesFirst(Status s) : Pass(), status_to_return_(s) {}
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const char* name() const override { return "dummy-pass"; }
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Status Process() override { return status_to_return_; }
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Analysis GetPreservedAnalyses() override { return IRContext::kAnalysisBegin; }
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private:
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Status status_to_return_;
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};
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using IRContextTest = PassTest<::testing::Test>;
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TEST_F(IRContextTest, IndividualValidAfterBuild) {
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std::unique_ptr<Module> module(new Module());
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IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
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spvtools::MessageConsumer());
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for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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localContext.BuildInvalidAnalyses(i);
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EXPECT_TRUE(localContext.AreAnalysesValid(i));
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}
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}
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TEST_F(IRContextTest, AllValidAfterBuild) {
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std::unique_ptr<Module> module = MakeUnique<Module>();
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IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
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spvtools::MessageConsumer());
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Analysis built_analyses = IRContext::kAnalysisNone;
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for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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localContext.BuildInvalidAnalyses(i);
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built_analyses |= i;
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}
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EXPECT_TRUE(localContext.AreAnalysesValid(built_analyses));
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}
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TEST_F(IRContextTest, AllValidAfterPassNoChange) {
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std::unique_ptr<Module> module = MakeUnique<Module>();
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IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
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spvtools::MessageConsumer());
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Analysis built_analyses = IRContext::kAnalysisNone;
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for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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localContext.BuildInvalidAnalyses(i);
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built_analyses |= i;
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}
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DummyPassPreservesNothing pass(Pass::Status::SuccessWithoutChange);
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Pass::Status s = pass.Run(&localContext);
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EXPECT_EQ(s, Pass::Status::SuccessWithoutChange);
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EXPECT_TRUE(localContext.AreAnalysesValid(built_analyses));
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}
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TEST_F(IRContextTest, NoneValidAfterPassWithChange) {
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std::unique_ptr<Module> module = MakeUnique<Module>();
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IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
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spvtools::MessageConsumer());
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for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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localContext.BuildInvalidAnalyses(i);
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}
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DummyPassPreservesNothing pass(Pass::Status::SuccessWithChange);
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Pass::Status s = pass.Run(&localContext);
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EXPECT_EQ(s, Pass::Status::SuccessWithChange);
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for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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EXPECT_FALSE(localContext.AreAnalysesValid(i));
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}
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}
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TEST_F(IRContextTest, AllPreservedAfterPassWithChange) {
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std::unique_ptr<Module> module = MakeUnique<Module>();
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IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
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spvtools::MessageConsumer());
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for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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localContext.BuildInvalidAnalyses(i);
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}
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DummyPassPreservesAll pass(Pass::Status::SuccessWithChange);
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Pass::Status s = pass.Run(&localContext);
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EXPECT_EQ(s, Pass::Status::SuccessWithChange);
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for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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EXPECT_TRUE(localContext.AreAnalysesValid(i));
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}
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}
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TEST_F(IRContextTest, PreserveFirstOnlyAfterPassWithChange) {
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std::unique_ptr<Module> module = MakeUnique<Module>();
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IRContext localContext(SPV_ENV_UNIVERSAL_1_2, std::move(module),
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spvtools::MessageConsumer());
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for (Analysis i = IRContext::kAnalysisBegin; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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localContext.BuildInvalidAnalyses(i);
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}
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DummyPassPreservesFirst pass(Pass::Status::SuccessWithChange);
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Pass::Status s = pass.Run(&localContext);
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EXPECT_EQ(s, Pass::Status::SuccessWithChange);
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EXPECT_TRUE(localContext.AreAnalysesValid(IRContext::kAnalysisBegin));
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for (Analysis i = IRContext::kAnalysisBegin << 1; i < IRContext::kAnalysisEnd;
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i <<= 1) {
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EXPECT_FALSE(localContext.AreAnalysesValid(i));
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}
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}
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TEST_F(IRContextTest, KillMemberName) {
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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OpName %3 "stuff"
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OpMemberName %3 0 "refZ"
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OpMemberDecorate %3 0 Offset 0
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OpDecorate %3 Block
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%4 = OpTypeFloat 32
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%3 = OpTypeStruct %4
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%5 = OpTypeVoid
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%6 = OpTypeFunction %5
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%2 = OpFunction %5 None %6
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%7 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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std::unique_ptr<IRContext> context =
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BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
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// Build the decoration manager.
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context->get_decoration_mgr();
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// Delete the OpTypeStruct. Should delete the OpName, OpMemberName, and
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// OpMemberDecorate associated with it.
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context->KillDef(3);
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// Make sure all of the name are removed.
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for (auto& inst : context->debugs2()) {
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EXPECT_EQ(inst.opcode(), SpvOpNop);
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}
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// Make sure all of the decorations are removed.
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for (auto& inst : context->annotations()) {
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EXPECT_EQ(inst.opcode(), SpvOpNop);
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}
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}
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TEST_F(IRContextTest, KillGroupDecoration) {
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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OpDecorate %3 Restrict
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%3 = OpDecorationGroup
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OpGroupDecorate %3 %4 %5
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%6 = OpTypeFloat 32
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%7 = OpTypePointer Function %6
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%8 = OpTypeStruct %6
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%9 = OpTypeVoid
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%10 = OpTypeFunction %9
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%2 = OpFunction %9 None %10
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%11 = OpLabel
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%4 = OpVariable %7 Function
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%5 = OpVariable %7 Function
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OpReturn
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OpFunctionEnd
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)";
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std::unique_ptr<IRContext> context =
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BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
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// Build the decoration manager.
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context->get_decoration_mgr();
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// Delete the second variable.
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context->KillDef(5);
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// The three decorations instructions should still be there. The first two
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// should be the same, but the third should have %5 removed.
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// Check the OpDecorate instruction
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auto inst = context->annotation_begin();
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EXPECT_EQ(inst->opcode(), SpvOpDecorate);
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EXPECT_EQ(inst->GetSingleWordInOperand(0), 3);
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// Check the OpDecorationGroup Instruction
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++inst;
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EXPECT_EQ(inst->opcode(), SpvOpDecorationGroup);
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EXPECT_EQ(inst->result_id(), 3);
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// Check that %5 is no longer part of the group.
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++inst;
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EXPECT_EQ(inst->opcode(), SpvOpGroupDecorate);
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EXPECT_EQ(inst->NumInOperands(), 2);
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EXPECT_EQ(inst->GetSingleWordInOperand(0), 3);
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EXPECT_EQ(inst->GetSingleWordInOperand(1), 4);
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// Check that we are at the end.
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++inst;
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EXPECT_EQ(inst, context->annotation_end());
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}
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TEST_F(IRContextTest, TakeNextUniqueIdIncrementing) {
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const uint32_t NUM_TESTS = 1000;
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IRContext localContext(SPV_ENV_UNIVERSAL_1_2, nullptr);
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for (uint32_t i = 1; i < NUM_TESTS; ++i)
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EXPECT_EQ(i, localContext.TakeNextUniqueId());
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}
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TEST_F(IRContextTest, KillGroupDecorationWitNoDecorations) {
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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%3 = OpDecorationGroup
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OpGroupDecorate %3 %4 %5
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%6 = OpTypeFloat 32
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%7 = OpTypePointer Function %6
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%8 = OpTypeStruct %6
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%9 = OpTypeVoid
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%10 = OpTypeFunction %9
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%2 = OpFunction %9 None %10
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%11 = OpLabel
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%4 = OpVariable %7 Function
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%5 = OpVariable %7 Function
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OpReturn
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OpFunctionEnd
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)";
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std::unique_ptr<IRContext> context =
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BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
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// Build the decoration manager.
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context->get_decoration_mgr();
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// Delete the second variable.
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context->KillDef(5);
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// The two decoration instructions should still be there. The first one
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// should be the same, but the second should have %5 removed.
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// Check the OpDecorationGroup Instruction
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auto inst = context->annotation_begin();
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EXPECT_EQ(inst->opcode(), SpvOpDecorationGroup);
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EXPECT_EQ(inst->result_id(), 3);
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// Check that %5 is no longer part of the group.
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++inst;
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EXPECT_EQ(inst->opcode(), SpvOpGroupDecorate);
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EXPECT_EQ(inst->NumInOperands(), 2);
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EXPECT_EQ(inst->GetSingleWordInOperand(0), 3);
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EXPECT_EQ(inst->GetSingleWordInOperand(1), 4);
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// Check that we are at the end.
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++inst;
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EXPECT_EQ(inst, context->annotation_end());
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}
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TEST_F(IRContextTest, KillDecorationGroup) {
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const std::string text = R"(
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %2 "main"
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OpExecutionMode %2 OriginUpperLeft
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OpSource GLSL 430
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%3 = OpDecorationGroup
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OpGroupDecorate %3 %4 %5
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%6 = OpTypeFloat 32
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%7 = OpTypePointer Function %6
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%8 = OpTypeStruct %6
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%9 = OpTypeVoid
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%10 = OpTypeFunction %9
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%2 = OpFunction %9 None %10
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%11 = OpLabel
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%4 = OpVariable %7 Function
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%5 = OpVariable %7 Function
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OpReturn
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OpFunctionEnd
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)";
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std::unique_ptr<IRContext> context =
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BuildModule(SPV_ENV_UNIVERSAL_1_2, nullptr, text);
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// Build the decoration manager.
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context->get_decoration_mgr();
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// Delete the second variable.
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context->KillDef(3);
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// Check the OpDecorationGroup Instruction is still there.
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EXPECT_TRUE(context->annotations().empty());
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}
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TEST_F(IRContextTest, BasicVisitFromEntryPoint) {
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// Make sure we visit the entry point, and the function it calls.
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// Do not visit Dead or Exported.
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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 Fragment %10 "main"
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OpName %10 "main"
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OpName %Dead "Dead"
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OpName %11 "Constant"
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OpName %ExportedFunc "ExportedFunc"
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OpDecorate %ExportedFunc LinkageAttributes "ExportedFunc" Export
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%10 = OpFunction %void None %6
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%14 = OpLabel
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%15 = OpFunctionCall %void %11
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%16 = OpFunctionCall %void %11
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OpReturn
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OpFunctionEnd
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%11 = OpFunction %void None %6
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%18 = OpLabel
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OpReturn
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OpFunctionEnd
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%Dead = OpFunction %void None %6
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%19 = OpLabel
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OpReturn
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OpFunctionEnd
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%ExportedFunc = OpFunction %void None %7
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%20 = OpLabel
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%21 = OpFunctionCall %void %11
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OpReturn
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OpFunctionEnd
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)";
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// clang-format on
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std::unique_ptr<IRContext> localContext =
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BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
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SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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EXPECT_NE(nullptr, localContext) << "Assembling failed for shader:\n"
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<< text << std::endl;
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std::vector<uint32_t> processed;
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Pass::ProcessFunction mark_visited = [&processed](Function* fp) {
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processed.push_back(fp->result_id());
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return false;
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};
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localContext->ProcessEntryPointCallTree(mark_visited);
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EXPECT_THAT(processed, UnorderedElementsAre(10, 11));
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}
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TEST_F(IRContextTest, BasicVisitReachable) {
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// Make sure we visit the entry point, exported function, and the function
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// they call. Do not visit Dead.
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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 Fragment %10 "main"
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OpName %10 "main"
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OpName %Dead "Dead"
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OpName %11 "Constant"
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OpName %12 "ExportedFunc"
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OpName %13 "Constant2"
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OpDecorate %12 LinkageAttributes "ExportedFunc" Export
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%10 = OpFunction %void None %6
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%14 = OpLabel
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%15 = OpFunctionCall %void %11
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%16 = OpFunctionCall %void %11
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OpReturn
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OpFunctionEnd
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%11 = OpFunction %void None %6
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%18 = OpLabel
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OpReturn
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OpFunctionEnd
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%Dead = OpFunction %void None %6
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%19 = OpLabel
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OpReturn
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OpFunctionEnd
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%12 = OpFunction %void None %6
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%20 = OpLabel
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%21 = OpFunctionCall %void %13
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OpReturn
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OpFunctionEnd
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%13 = OpFunction %void None %6
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%22 = OpLabel
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OpReturn
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OpFunctionEnd
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)";
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// clang-format on
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std::unique_ptr<IRContext> localContext =
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BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
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SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
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EXPECT_NE(nullptr, localContext) << "Assembling failed for shader:\n"
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<< text << std::endl;
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std::vector<uint32_t> processed;
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Pass::ProcessFunction mark_visited = [&processed](Function* fp) {
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processed.push_back(fp->result_id());
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return false;
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};
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localContext->ProcessReachableCallTree(mark_visited);
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EXPECT_THAT(processed, UnorderedElementsAre(10, 11, 12, 13));
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}
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TEST_F(IRContextTest, BasicVisitOnlyOnce) {
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// Make sure we visit %12 only once, even if it is called from two different
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// functions.
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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 Fragment %10 "main"
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OpName %10 "main"
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OpName %Dead "Dead"
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OpName %11 "Constant"
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OpName %12 "ExportedFunc"
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OpDecorate %12 LinkageAttributes "ExportedFunc" Export
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%void = OpTypeVoid
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%6 = OpTypeFunction %void
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%10 = OpFunction %void None %6
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%14 = OpLabel
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%15 = OpFunctionCall %void %11
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%16 = OpFunctionCall %void %12
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OpReturn
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OpFunctionEnd
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%11 = OpFunction %void None %6
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%18 = OpLabel
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%19 = OpFunctionCall %void %12
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OpReturn
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OpFunctionEnd
|
|
%Dead = OpFunction %void None %6
|
|
%20 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
%12 = OpFunction %void None %6
|
|
%21 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
// clang-format on
|
|
|
|
std::unique_ptr<IRContext> localContext =
|
|
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
EXPECT_NE(nullptr, localContext) << "Assembling failed for shader:\n"
|
|
<< text << std::endl;
|
|
|
|
std::vector<uint32_t> processed;
|
|
Pass::ProcessFunction mark_visited = [&processed](Function* fp) {
|
|
processed.push_back(fp->result_id());
|
|
return false;
|
|
};
|
|
localContext->ProcessReachableCallTree(mark_visited);
|
|
EXPECT_THAT(processed, UnorderedElementsAre(10, 11, 12));
|
|
}
|
|
|
|
TEST_F(IRContextTest, BasicDontVisitExportedVariable) {
|
|
// Make sure we only visit functions and not exported variables.
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpMemoryModel Logical GLSL450
|
|
OpEntryPoint Fragment %10 "main"
|
|
OpExecutionMode %10 OriginUpperLeft
|
|
OpSource GLSL 150
|
|
OpName %10 "main"
|
|
OpName %12 "export_var"
|
|
OpDecorate %12 LinkageAttributes "export_var" Export
|
|
%void = OpTypeVoid
|
|
%6 = OpTypeFunction %void
|
|
%float = OpTypeFloat 32
|
|
%float_1 = OpConstant %float 1
|
|
%12 = OpVariable %float Output
|
|
%10 = OpFunction %void None %6
|
|
%14 = OpLabel
|
|
OpStore %12 %float_1
|
|
OpReturn
|
|
OpFunctionEnd
|
|
)";
|
|
// clang-format on
|
|
|
|
std::unique_ptr<IRContext> localContext =
|
|
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
EXPECT_NE(nullptr, localContext) << "Assembling failed for shader:\n"
|
|
<< text << std::endl;
|
|
|
|
std::vector<uint32_t> processed;
|
|
Pass::ProcessFunction mark_visited = [&processed](Function* fp) {
|
|
processed.push_back(fp->result_id());
|
|
return false;
|
|
};
|
|
localContext->ProcessReachableCallTree(mark_visited);
|
|
EXPECT_THAT(processed, UnorderedElementsAre(10));
|
|
}
|
|
|
|
TEST_F(IRContextTest, IdBoundTestAtLimit) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeFunction %1
|
|
%3 = OpFunction %1 None %2
|
|
%4 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd)";
|
|
|
|
std::unique_ptr<IRContext> context =
|
|
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
uint32_t current_bound = context->module()->id_bound();
|
|
context->set_max_id_bound(current_bound);
|
|
uint32_t next_id_bound = context->TakeNextId();
|
|
EXPECT_EQ(next_id_bound, 0);
|
|
EXPECT_EQ(current_bound, context->module()->id_bound());
|
|
next_id_bound = context->TakeNextId();
|
|
EXPECT_EQ(next_id_bound, 0);
|
|
}
|
|
|
|
TEST_F(IRContextTest, IdBoundTestBelowLimit) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeFunction %1
|
|
%3 = OpFunction %1 None %2
|
|
%4 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd)";
|
|
|
|
std::unique_ptr<IRContext> context =
|
|
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
uint32_t current_bound = context->module()->id_bound();
|
|
context->set_max_id_bound(current_bound + 100);
|
|
uint32_t next_id_bound = context->TakeNextId();
|
|
EXPECT_EQ(next_id_bound, current_bound);
|
|
EXPECT_EQ(current_bound + 1, context->module()->id_bound());
|
|
next_id_bound = context->TakeNextId();
|
|
EXPECT_EQ(next_id_bound, current_bound + 1);
|
|
}
|
|
|
|
TEST_F(IRContextTest, IdBoundTestNearLimit) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeFunction %1
|
|
%3 = OpFunction %1 None %2
|
|
%4 = OpLabel
|
|
OpReturn
|
|
OpFunctionEnd)";
|
|
|
|
std::unique_ptr<IRContext> context =
|
|
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
uint32_t current_bound = context->module()->id_bound();
|
|
context->set_max_id_bound(current_bound + 1);
|
|
uint32_t next_id_bound = context->TakeNextId();
|
|
EXPECT_EQ(next_id_bound, current_bound);
|
|
EXPECT_EQ(current_bound + 1, context->module()->id_bound());
|
|
next_id_bound = context->TakeNextId();
|
|
EXPECT_EQ(next_id_bound, 0);
|
|
}
|
|
|
|
TEST_F(IRContextTest, IdBoundTestUIntMax) {
|
|
const std::string text = R"(
|
|
OpCapability Shader
|
|
OpCapability Linkage
|
|
OpMemoryModel Logical GLSL450
|
|
%1 = OpTypeVoid
|
|
%2 = OpTypeFunction %1
|
|
%3 = OpFunction %1 None %2
|
|
%4294967294 = OpLabel ; ID is UINT_MAX-1
|
|
OpReturn
|
|
OpFunctionEnd)";
|
|
|
|
std::unique_ptr<IRContext> context =
|
|
BuildModule(SPV_ENV_UNIVERSAL_1_1, nullptr, text,
|
|
SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS);
|
|
uint32_t current_bound = context->module()->id_bound();
|
|
|
|
// Expecting |BuildModule| to preserve the numeric ids.
|
|
EXPECT_EQ(current_bound, std::numeric_limits<uint32_t>::max());
|
|
|
|
context->set_max_id_bound(current_bound);
|
|
uint32_t next_id_bound = context->TakeNextId();
|
|
EXPECT_EQ(next_id_bound, 0);
|
|
EXPECT_EQ(current_bound, context->module()->id_bound());
|
|
}
|
|
} // namespace
|
|
} // namespace opt
|
|
} // namespace spvtools
|