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//===- llvm/unittest/VMCore/IRBuilderTest.cpp - IRBuilder tests -----------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/BasicBlock.h"
#include "llvm/DataLayout.h"
#include "llvm/Function.h"
#include "llvm/IRBuilder.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/LLVMContext.h"
#include "llvm/MDBuilder.h"
#include "llvm/Module.h"
#include "llvm/ADT/OwningPtr.h"
#include "gtest/gtest.h"
using namespace llvm;
namespace {
class IRBuilderTest : public testing::Test {
protected:
virtual void SetUp() {
M.reset(new Module("MyModule", getGlobalContext()));
FunctionType *FTy = FunctionType::get(Type::getVoidTy(getGlobalContext()),
/*isVarArg=*/false);
F = Function::Create(FTy, Function::ExternalLinkage, "", M.get());
BB = BasicBlock::Create(getGlobalContext(), "", F);
}
virtual void TearDown() {
BB = 0;
M.reset();
}
OwningPtr<Module> M;
Function *F;
BasicBlock *BB;
};
TEST_F(IRBuilderTest, Lifetime) {
IRBuilder<> Builder(BB);
AllocaInst *Var1 = Builder.CreateAlloca(Builder.getInt8Ty());
AllocaInst *Var2 = Builder.CreateAlloca(Builder.getInt32Ty());
AllocaInst *Var3 = Builder.CreateAlloca(Builder.getInt8Ty(),
Builder.getInt32(123));
CallInst *Start1 = Builder.CreateLifetimeStart(Var1);
CallInst *Start2 = Builder.CreateLifetimeStart(Var2);
CallInst *Start3 = Builder.CreateLifetimeStart(Var3, Builder.getInt64(100));
EXPECT_EQ(Start1->getArgOperand(0), Builder.getInt64(-1));
EXPECT_EQ(Start2->getArgOperand(0), Builder.getInt64(-1));
EXPECT_EQ(Start3->getArgOperand(0), Builder.getInt64(100));
EXPECT_EQ(Start1->getArgOperand(1), Var1);
EXPECT_NE(Start2->getArgOperand(1), Var2);
EXPECT_EQ(Start3->getArgOperand(1), Var3);
Value *End1 = Builder.CreateLifetimeEnd(Var1);
Builder.CreateLifetimeEnd(Var2);
Builder.CreateLifetimeEnd(Var3);
IntrinsicInst *II_Start1 = dyn_cast<IntrinsicInst>(Start1);
IntrinsicInst *II_End1 = dyn_cast<IntrinsicInst>(End1);
ASSERT_TRUE(II_Start1 != NULL);
EXPECT_EQ(II_Start1->getIntrinsicID(), Intrinsic::lifetime_start);
ASSERT_TRUE(II_End1 != NULL);
EXPECT_EQ(II_End1->getIntrinsicID(), Intrinsic::lifetime_end);
}
TEST_F(IRBuilderTest, CreateCondBr) {
IRBuilder<> Builder(BB);
BasicBlock *TBB = BasicBlock::Create(getGlobalContext(), "", F);
BasicBlock *FBB = BasicBlock::Create(getGlobalContext(), "", F);
BranchInst *BI = Builder.CreateCondBr(Builder.getTrue(), TBB, FBB);
TerminatorInst *TI = BB->getTerminator();
EXPECT_EQ(BI, TI);
EXPECT_EQ(2u, TI->getNumSuccessors());
EXPECT_EQ(TBB, TI->getSuccessor(0));
EXPECT_EQ(FBB, TI->getSuccessor(1));
BI->eraseFromParent();
MDNode *Weights = MDBuilder(getGlobalContext()).createBranchWeights(42, 13);
BI = Builder.CreateCondBr(Builder.getTrue(), TBB, FBB, Weights);
TI = BB->getTerminator();
EXPECT_EQ(BI, TI);
EXPECT_EQ(2u, TI->getNumSuccessors());
EXPECT_EQ(TBB, TI->getSuccessor(0));
EXPECT_EQ(FBB, TI->getSuccessor(1));
EXPECT_EQ(Weights, TI->getMetadata(LLVMContext::MD_prof));
}
TEST_F(IRBuilderTest, GetIntTy) {
IRBuilder<> Builder(BB);
IntegerType *Ty1 = Builder.getInt1Ty();
EXPECT_EQ(Ty1, IntegerType::get(getGlobalContext(), 1));
DataLayout* DL = new DataLayout(M.get());
IntegerType *IntPtrTy = Builder.getIntPtrTy(DL);
unsigned IntPtrBitSize = DL->getPointerSizeInBits(0);
EXPECT_EQ(IntPtrTy, IntegerType::get(getGlobalContext(), IntPtrBitSize));
}
}
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