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66 lines
1.9 KiB
C++
66 lines
1.9 KiB
C++
//===- llvm/unittest/IR/AsmWriter.cpp - AsmWriter tests -------------------===//
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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/BinaryFormat/Dwarf.h"
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#include "llvm/IR/DebugInfoMetadata.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/IRBuilder.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/MDBuilder.h"
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#include "llvm/IR/Module.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(AsmWriterTest, DebugPrintDetachedInstruction) {
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// PR24852: Ensure that an instruction can be printed even when it
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// has metadata attached but no parent.
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LLVMContext Ctx;
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auto Ty = Type::getInt32Ty(Ctx);
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auto Undef = UndefValue::get(Ty);
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std::unique_ptr<BinaryOperator> Add(BinaryOperator::CreateAdd(Undef, Undef));
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Add->setMetadata(
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"", MDNode::get(Ctx, {ConstantAsMetadata::get(ConstantInt::get(Ty, 1))}));
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std::string S;
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raw_string_ostream OS(S);
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Add->print(OS);
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std::size_t r = OS.str().find("<badref> = add i32 undef, undef, !<empty");
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EXPECT_TRUE(r != std::string::npos);
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}
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TEST(AsmWriterTest, DebugPrintDetachedArgument) {
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LLVMContext Ctx;
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auto Ty = Type::getInt32Ty(Ctx);
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auto Arg = new Argument(Ty);
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std::string S;
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raw_string_ostream OS(S);
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Arg->print(OS);
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EXPECT_EQ(S, "i32 <badref>");
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delete Arg;
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}
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TEST(AsmWriterTest, DumpDIExpression) {
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LLVMContext Ctx;
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uint64_t Ops[] = {
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dwarf::DW_OP_constu, 4,
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dwarf::DW_OP_minus,
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dwarf::DW_OP_deref,
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};
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DIExpression *Expr = DIExpression::get(Ctx, Ops);
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std::string S;
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raw_string_ostream OS(S);
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Expr->print(OS);
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EXPECT_EQ("!DIExpression(DW_OP_constu, 4, DW_OP_minus, DW_OP_deref)",
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OS.str());
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}
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}
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