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418 lines
13 KiB
C++
418 lines
13 KiB
C++
//===- llvm/unittest/AsmParser/AsmParserTest.cpp - asm parser unittests ---===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ADT/StringRef.h"
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#include "llvm/AsmParser/Parser.h"
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#include "llvm/AsmParser/SlotMapping.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "llvm/Support/SourceMgr.h"
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#include "gtest/gtest.h"
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using namespace llvm;
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namespace {
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TEST(AsmParserTest, NullTerminatedInput) {
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LLVMContext Ctx;
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StringRef Source = "; Empty module \n";
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SMDiagnostic Error;
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auto Mod = parseAssemblyString(Source, Error, Ctx);
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EXPECT_TRUE(Mod != nullptr);
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EXPECT_TRUE(Error.getMessage().empty());
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}
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#ifdef GTEST_HAS_DEATH_TEST
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#ifndef NDEBUG
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TEST(AsmParserTest, NonNullTerminatedInput) {
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LLVMContext Ctx;
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StringRef Source = "; Empty module \n\1\2";
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SMDiagnostic Error;
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std::unique_ptr<Module> Mod;
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EXPECT_DEATH(Mod = parseAssemblyString(Source.substr(0, Source.size() - 2),
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Error, Ctx),
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"Buffer is not null terminated!");
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}
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#endif
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#endif
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TEST(AsmParserTest, SlotMappingTest) {
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LLVMContext Ctx;
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StringRef Source = "@0 = global i32 0\n !0 = !{}\n !42 = !{i32 42}";
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SMDiagnostic Error;
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SlotMapping Mapping;
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auto Mod = parseAssemblyString(Source, Error, Ctx, &Mapping);
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EXPECT_TRUE(Mod != nullptr);
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EXPECT_TRUE(Error.getMessage().empty());
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ASSERT_EQ(Mapping.GlobalValues.size(), 1u);
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EXPECT_TRUE(isa<GlobalVariable>(Mapping.GlobalValues[0]));
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EXPECT_EQ(Mapping.MetadataNodes.size(), 2u);
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EXPECT_EQ(Mapping.MetadataNodes.count(0), 1u);
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EXPECT_EQ(Mapping.MetadataNodes.count(42), 1u);
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EXPECT_EQ(Mapping.MetadataNodes.count(1), 0u);
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}
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TEST(AsmParserTest, TypeAndConstantValueParsing) {
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LLVMContext Ctx;
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SMDiagnostic Error;
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StringRef Source = "define void @test() {\n entry:\n ret void\n}";
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auto Mod = parseAssemblyString(Source, Error, Ctx);
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ASSERT_TRUE(Mod != nullptr);
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auto &M = *Mod;
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const Value *V;
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V = parseConstantValue("double 3.5", Error, M);
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ASSERT_TRUE(V);
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EXPECT_TRUE(V->getType()->isDoubleTy());
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ASSERT_TRUE(isa<ConstantFP>(V));
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EXPECT_TRUE(cast<ConstantFP>(V)->isExactlyValue(3.5));
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V = parseConstantValue("i32 42", Error, M);
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ASSERT_TRUE(V);
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EXPECT_TRUE(V->getType()->isIntegerTy());
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ASSERT_TRUE(isa<ConstantInt>(V));
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EXPECT_TRUE(cast<ConstantInt>(V)->equalsInt(42));
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V = parseConstantValue("<4 x i32> <i32 0, i32 1, i32 2, i32 3>", Error, M);
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ASSERT_TRUE(V);
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EXPECT_TRUE(V->getType()->isVectorTy());
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ASSERT_TRUE(isa<ConstantDataVector>(V));
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V = parseConstantValue("i32 add (i32 1, i32 2)", Error, M);
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ASSERT_TRUE(V);
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ASSERT_TRUE(isa<ConstantInt>(V));
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V = parseConstantValue("i8* blockaddress(@test, %entry)", Error, M);
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ASSERT_TRUE(V);
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ASSERT_TRUE(isa<BlockAddress>(V));
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V = parseConstantValue("i8** undef", Error, M);
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ASSERT_TRUE(V);
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ASSERT_TRUE(isa<UndefValue>(V));
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EXPECT_FALSE(parseConstantValue("duble 3.25", Error, M));
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EXPECT_EQ(Error.getMessage(), "expected type");
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EXPECT_FALSE(parseConstantValue("i32 3.25", Error, M));
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EXPECT_EQ(Error.getMessage(), "floating point constant invalid for type");
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EXPECT_FALSE(parseConstantValue("i32* @foo", Error, M));
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EXPECT_EQ(Error.getMessage(), "expected a constant value");
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EXPECT_FALSE(parseConstantValue("i32 3, ", Error, M));
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EXPECT_EQ(Error.getMessage(), "expected end of string");
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}
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TEST(AsmParserTest, TypeAndConstantValueWithSlotMappingParsing) {
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LLVMContext Ctx;
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SMDiagnostic Error;
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StringRef Source =
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"%st = type { i32, i32 }\n"
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"@v = common global [50 x %st] zeroinitializer, align 16\n"
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"%0 = type { i32, i32, i32, i32 }\n"
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"@g = common global [50 x %0] zeroinitializer, align 16\n"
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"define void @marker4(i64 %d) {\n"
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"entry:\n"
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" %conv = trunc i64 %d to i32\n"
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" store i32 %conv, i32* getelementptr inbounds "
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" ([50 x %st], [50 x %st]* @v, i64 0, i64 0, i32 0), align 16\n"
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" store i32 %conv, i32* getelementptr inbounds "
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" ([50 x %0], [50 x %0]* @g, i64 0, i64 0, i32 0), align 16\n"
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" ret void\n"
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"}";
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SlotMapping Mapping;
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auto Mod = parseAssemblyString(Source, Error, Ctx, &Mapping);
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ASSERT_TRUE(Mod != nullptr);
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auto &M = *Mod;
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const Value *V;
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V = parseConstantValue("i32* getelementptr inbounds ([50 x %st], [50 x %st]* "
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"@v, i64 0, i64 0, i32 0)",
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Error, M, &Mapping);
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ASSERT_TRUE(V);
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ASSERT_TRUE(isa<ConstantExpr>(V));
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V = parseConstantValue("i32* getelementptr inbounds ([50 x %0], [50 x %0]* "
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"@g, i64 0, i64 0, i32 0)",
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Error, M, &Mapping);
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ASSERT_TRUE(V);
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ASSERT_TRUE(isa<ConstantExpr>(V));
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}
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TEST(AsmParserTest, TypeWithSlotMappingParsing) {
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LLVMContext Ctx;
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SMDiagnostic Error;
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StringRef Source =
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"%st = type { i32, i32 }\n"
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"@v = common global [50 x %st] zeroinitializer, align 16\n"
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"%0 = type { i32, i32, i32, i32 }\n"
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"@g = common global [50 x %0] zeroinitializer, align 16\n"
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"define void @marker4(i64 %d) {\n"
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"entry:\n"
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" %conv = trunc i64 %d to i32\n"
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" store i32 %conv, i32* getelementptr inbounds "
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" ([50 x %st], [50 x %st]* @v, i64 0, i64 0, i32 0), align 16\n"
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" store i32 %conv, i32* getelementptr inbounds "
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" ([50 x %0], [50 x %0]* @g, i64 0, i64 0, i32 0), align 16\n"
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" ret void\n"
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"}";
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SlotMapping Mapping;
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auto Mod = parseAssemblyString(Source, Error, Ctx, &Mapping);
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ASSERT_TRUE(Mod != nullptr);
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auto &M = *Mod;
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// Check we properly parse integer types.
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Type *Ty;
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Ty = parseType("i32", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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// Check we properly parse integer types with exotic size.
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Ty = parseType("i13", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 13);
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// Check we properly parse floating point types.
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Ty = parseType("float", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isFloatTy());
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Ty = parseType("double", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isDoubleTy());
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// Check we properly parse struct types.
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// Named struct.
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Ty = parseType("%st", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isStructTy());
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// Check the details of the struct.
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StructType *ST = cast<StructType>(Ty);
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ASSERT_TRUE(ST->getNumElements() == 2);
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for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
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Ty = ST->getElementType(i);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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}
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// Anonymous struct.
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Ty = parseType("%0", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isStructTy());
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// Check the details of the struct.
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ST = cast<StructType>(Ty);
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ASSERT_TRUE(ST->getNumElements() == 4);
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for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
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Ty = ST->getElementType(i);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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}
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// Check we properly parse vector types.
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Ty = parseType("<5 x i32>", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isVectorTy());
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// Check the details of the vector.
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VectorType *VT = cast<VectorType>(Ty);
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ASSERT_TRUE(VT->getNumElements() == 5);
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ASSERT_TRUE(VT->getBitWidth() == 160);
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Ty = VT->getElementType();
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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// Opaque struct.
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Ty = parseType("%opaque", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isStructTy());
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ST = cast<StructType>(Ty);
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ASSERT_TRUE(ST->isOpaque());
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// Check we properly parse pointer types.
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// One indirection.
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Ty = parseType("i32*", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isPointerTy());
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PointerType *PT = cast<PointerType>(Ty);
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Ty = PT->getElementType();
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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// Two indirections.
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Ty = parseType("i32**", Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isPointerTy());
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PT = cast<PointerType>(Ty);
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Ty = PT->getElementType();
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ASSERT_TRUE(Ty->isPointerTy());
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PT = cast<PointerType>(Ty);
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Ty = PT->getElementType();
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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// Check that we reject types with garbage.
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Ty = parseType("i32 garbage", Error, M, &Mapping);
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ASSERT_TRUE(!Ty);
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}
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TEST(AsmParserTest, TypeAtBeginningWithSlotMappingParsing) {
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LLVMContext Ctx;
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SMDiagnostic Error;
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StringRef Source =
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"%st = type { i32, i32 }\n"
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"@v = common global [50 x %st] zeroinitializer, align 16\n"
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"%0 = type { i32, i32, i32, i32 }\n"
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"@g = common global [50 x %0] zeroinitializer, align 16\n"
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"define void @marker4(i64 %d) {\n"
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"entry:\n"
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" %conv = trunc i64 %d to i32\n"
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" store i32 %conv, i32* getelementptr inbounds "
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" ([50 x %st], [50 x %st]* @v, i64 0, i64 0, i32 0), align 16\n"
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" store i32 %conv, i32* getelementptr inbounds "
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" ([50 x %0], [50 x %0]* @g, i64 0, i64 0, i32 0), align 16\n"
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" ret void\n"
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"}";
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SlotMapping Mapping;
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auto Mod = parseAssemblyString(Source, Error, Ctx, &Mapping);
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ASSERT_TRUE(Mod != nullptr);
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auto &M = *Mod;
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unsigned Read;
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// Check we properly parse integer types.
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Type *Ty;
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Ty = parseTypeAtBeginning("i32", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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ASSERT_TRUE(Read == 3);
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// Check we properly parse integer types with exotic size.
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Ty = parseTypeAtBeginning("i13", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 13);
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ASSERT_TRUE(Read == 3);
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// Check we properly parse floating point types.
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Ty = parseTypeAtBeginning("float", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isFloatTy());
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ASSERT_TRUE(Read == 5);
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Ty = parseTypeAtBeginning("double", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isDoubleTy());
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ASSERT_TRUE(Read == 6);
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// Check we properly parse struct types.
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// Named struct.
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Ty = parseTypeAtBeginning("%st", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isStructTy());
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ASSERT_TRUE(Read == 3);
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// Check the details of the struct.
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StructType *ST = cast<StructType>(Ty);
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ASSERT_TRUE(ST->getNumElements() == 2);
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for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
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Ty = ST->getElementType(i);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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}
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// Anonymous struct.
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Ty = parseTypeAtBeginning("%0", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isStructTy());
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ASSERT_TRUE(Read == 2);
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// Check the details of the struct.
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ST = cast<StructType>(Ty);
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ASSERT_TRUE(ST->getNumElements() == 4);
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for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i) {
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Ty = ST->getElementType(i);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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}
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// Check we properly parse vector types.
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Ty = parseTypeAtBeginning("<5 x i32>", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isVectorTy());
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ASSERT_TRUE(Read == 9);
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// Check the details of the vector.
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VectorType *VT = cast<VectorType>(Ty);
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ASSERT_TRUE(VT->getNumElements() == 5);
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ASSERT_TRUE(VT->getBitWidth() == 160);
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Ty = VT->getElementType();
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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// Opaque struct.
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Ty = parseTypeAtBeginning("%opaque", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isStructTy());
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ASSERT_TRUE(Read == 7);
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ST = cast<StructType>(Ty);
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ASSERT_TRUE(ST->isOpaque());
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// Check we properly parse pointer types.
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// One indirection.
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Ty = parseTypeAtBeginning("i32*", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isPointerTy());
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ASSERT_TRUE(Read == 4);
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PointerType *PT = cast<PointerType>(Ty);
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Ty = PT->getElementType();
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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// Two indirections.
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Ty = parseTypeAtBeginning("i32**", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isPointerTy());
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ASSERT_TRUE(Read == 5);
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PT = cast<PointerType>(Ty);
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Ty = PT->getElementType();
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ASSERT_TRUE(Ty->isPointerTy());
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PT = cast<PointerType>(Ty);
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Ty = PT->getElementType();
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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// Check that we reject types with garbage.
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Ty = parseTypeAtBeginning("i32 garbage", Read, Error, M, &Mapping);
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ASSERT_TRUE(Ty);
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ASSERT_TRUE(Ty->isIntegerTy());
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ASSERT_TRUE(Ty->getPrimitiveSizeInBits() == 32);
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// We go to the next token, i.e., we read "i32" + ' '.
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ASSERT_TRUE(Read == 4);
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}
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} // end anonymous namespace
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