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81 lines
2.9 KiB
C++
81 lines
2.9 KiB
C++
//===- llvm/unittest/IR/VerifierTest.cpp - Verifier unit tests ------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/Verifier.h"
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#include "llvm/ADT/OwningPtr.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/GlobalAlias.h"
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#include "llvm/IR/GlobalVariable.h"
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#include "llvm/IR/Instructions.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Module.h"
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#include "gtest/gtest.h"
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namespace llvm {
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namespace {
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TEST(VerifierTest, Branch_i1) {
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LLVMContext &C = getGlobalContext();
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FunctionType *FTy = FunctionType::get(Type::getVoidTy(C), /*isVarArg=*/false);
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OwningPtr<Function> F(Function::Create(FTy, GlobalValue::ExternalLinkage));
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BasicBlock *Entry = BasicBlock::Create(C, "entry", F.get());
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BasicBlock *Exit = BasicBlock::Create(C, "exit", F.get());
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ReturnInst::Create(C, Exit);
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// To avoid triggering an assertion in BranchInst::Create, we first create
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// a branch with an 'i1' condition ...
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Constant *False = ConstantInt::getFalse(C);
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BranchInst *BI = BranchInst::Create(Exit, Exit, False, Entry);
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// ... then use setOperand to redirect it to a value of different type.
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Constant *Zero32 = ConstantInt::get(IntegerType::get(C, 32), 0);
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BI->setOperand(0, Zero32);
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EXPECT_TRUE(verifyFunction(*F, ReturnStatusAction));
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}
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TEST(VerifierTest, AliasUnnamedAddr) {
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LLVMContext &C = getGlobalContext();
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Module M("M", C);
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Type *Ty = Type::getInt8Ty(C);
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Constant *Init = Constant::getNullValue(Ty);
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GlobalVariable *Aliasee = new GlobalVariable(M, Ty, true,
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GlobalValue::ExternalLinkage,
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Init, "foo");
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GlobalAlias *GA = new GlobalAlias(Type::getInt8PtrTy(C),
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GlobalValue::ExternalLinkage,
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"bar", Aliasee, &M);
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GA->setUnnamedAddr(true);
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std::string Error;
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EXPECT_TRUE(verifyModule(M, ReturnStatusAction, &Error));
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EXPECT_TRUE(StringRef(Error).startswith("Alias cannot have unnamed_addr"));
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}
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TEST(VerifierTest, InvalidRetAttribute) {
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LLVMContext &C = getGlobalContext();
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Module M("M", C);
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FunctionType *FTy = FunctionType::get(Type::getInt32Ty(C), /*isVarArg=*/false);
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Function *F = cast<Function>(M.getOrInsertFunction("foo", FTy));
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AttributeSet AS = F->getAttributes();
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F->setAttributes(AS.addAttribute(C, AttributeSet::ReturnIndex,
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Attribute::UWTable));
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std::string Error;
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EXPECT_TRUE(verifyModule(M, ReturnStatusAction, &Error));
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EXPECT_TRUE(StringRef(Error).
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startswith("Attribute 'uwtable' only applies to functions!"));
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}
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}
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}
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