| //===- llvm/unittest/IR/AsmWriter.cpp - AsmWriter tests -------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| #include "llvm/BinaryFormat/Dwarf.h" |
| #include "llvm/IR/DebugInfoMetadata.h" |
| #include "llvm/IR/Function.h" |
| #include "llvm/IR/IRBuilder.h" |
| #include "llvm/IR/LLVMContext.h" |
| #include "llvm/IR/MDBuilder.h" |
| #include "llvm/IR/Module.h" |
| #include "gmock/gmock.h" |
| #include "gtest/gtest.h" |
| |
| using namespace llvm; |
| using ::testing::HasSubstr; |
| |
| namespace { |
| |
| TEST(AsmWriterTest, DebugPrintDetachedInstruction) { |
| |
| // PR24852: Ensure that an instruction can be printed even when it |
| // has metadata attached but no parent. |
| LLVMContext Ctx; |
| auto Ty = Type::getInt32Ty(Ctx); |
| auto Poison = PoisonValue::get(Ty); |
| std::unique_ptr<BinaryOperator> Add(BinaryOperator::CreateAdd(Poison, Poison)); |
| Add->setMetadata( |
| "", MDNode::get(Ctx, {ConstantAsMetadata::get(ConstantInt::get(Ty, 1))})); |
| std::string S; |
| raw_string_ostream OS(S); |
| Add->print(OS); |
| EXPECT_THAT(OS.str(), |
| HasSubstr("<badref> = add i32 poison, poison, !<empty")); |
| } |
| |
| TEST(AsmWriterTest, DebugPrintDetachedArgument) { |
| LLVMContext Ctx; |
| auto Ty = Type::getInt32Ty(Ctx); |
| auto Arg = new Argument(Ty); |
| |
| std::string S; |
| raw_string_ostream OS(S); |
| Arg->print(OS); |
| EXPECT_EQ(S, "i32 <badref>"); |
| delete Arg; |
| } |
| |
| TEST(AsmWriterTest, DumpDIExpression) { |
| LLVMContext Ctx; |
| uint64_t Ops[] = { |
| dwarf::DW_OP_constu, 4, |
| dwarf::DW_OP_minus, |
| dwarf::DW_OP_deref, |
| }; |
| DIExpression *Expr = DIExpression::get(Ctx, Ops); |
| std::string S; |
| raw_string_ostream OS(S); |
| Expr->print(OS); |
| EXPECT_EQ("!DIExpression(DW_OP_constu, 4, DW_OP_minus, DW_OP_deref)", |
| OS.str()); |
| } |
| |
| TEST(AsmWriterTest, PrintAddrspaceWithNullOperand) { |
| LLVMContext Ctx; |
| Module M("test module", Ctx); |
| SmallVector<Type *, 3> FArgTypes; |
| FArgTypes.push_back(Type::getInt64Ty(Ctx)); |
| FunctionType *FTy = FunctionType::get(Type::getVoidTy(Ctx), FArgTypes, false); |
| Function *F = Function::Create(FTy, Function::ExternalLinkage, "", &M); |
| Argument *Arg0 = F->getArg(0); |
| Value *Args[] = {Arg0}; |
| std::unique_ptr<CallInst> Call(CallInst::Create(F, Args)); |
| // This will make Call's operand null. |
| Call->dropAllReferences(); |
| |
| std::string S; |
| raw_string_ostream OS(S); |
| Call->print(OS); |
| EXPECT_THAT(OS.str(), HasSubstr("<cannot get addrspace!>")); |
| } |
| |
| TEST(AsmWriterTest, PrintNullOperandBundle) { |
| LLVMContext C; |
| Type *Int32Ty = Type::getInt32Ty(C); |
| FunctionType *FnTy = FunctionType::get(Int32Ty, Int32Ty, /*isVarArg=*/false); |
| Value *Callee = Constant::getNullValue(FnTy->getPointerTo()); |
| Value *Args[] = {ConstantInt::get(Int32Ty, 42)}; |
| std::unique_ptr<BasicBlock> NormalDest(BasicBlock::Create(C)); |
| std::unique_ptr<BasicBlock> UnwindDest(BasicBlock::Create(C)); |
| OperandBundleDef Bundle("bundle", UndefValue::get(Int32Ty)); |
| std::unique_ptr<InvokeInst> Invoke( |
| InvokeInst::Create(FnTy, Callee, NormalDest.get(), UnwindDest.get(), Args, |
| Bundle, "result")); |
| // Makes the operand bundle null. |
| Invoke->dropAllReferences(); |
| Invoke->setNormalDest(NormalDest.get()); |
| Invoke->setUnwindDest(UnwindDest.get()); |
| |
| std::string S; |
| raw_string_ostream OS(S); |
| Invoke->print(OS); |
| EXPECT_THAT(OS.str(), HasSubstr("<null operand bundle!>")); |
| } |
| } |