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