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//===- Cloning.cpp - Unit tests for the Cloner ----------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "llvm/Argument.h"
#include "llvm/Instructions.h"
using namespace llvm;
TEST(CloneInstruction, OverflowBits) {
LLVMContext context;
Value *V = new Argument(Type::getInt32Ty(context));
BinaryOperator *Add = BinaryOperator::Create(Instruction::Add, V, V);
BinaryOperator *Sub = BinaryOperator::Create(Instruction::Sub, V, V);
BinaryOperator *Mul = BinaryOperator::Create(Instruction::Mul, V, V);
EXPECT_FALSE(Add->clone()->hasNoUnsignedWrap());
EXPECT_FALSE(Add->clone()->hasNoSignedWrap());
EXPECT_FALSE(Sub->clone()->hasNoUnsignedWrap());
EXPECT_FALSE(Sub->clone()->hasNoSignedWrap());
EXPECT_FALSE(Mul->clone()->hasNoUnsignedWrap());
EXPECT_FALSE(Mul->clone()->hasNoSignedWrap());
Add->setHasNoUnsignedWrap();
Sub->setHasNoUnsignedWrap();
Mul->setHasNoUnsignedWrap();
EXPECT_TRUE(Add->clone()->hasNoUnsignedWrap());
EXPECT_FALSE(Add->clone()->hasNoSignedWrap());
EXPECT_TRUE(Sub->clone()->hasNoUnsignedWrap());
EXPECT_FALSE(Sub->clone()->hasNoSignedWrap());
EXPECT_TRUE(Mul->clone()->hasNoUnsignedWrap());
EXPECT_FALSE(Mul->clone()->hasNoSignedWrap());
Add->setHasNoSignedWrap();
Sub->setHasNoSignedWrap();
Mul->setHasNoSignedWrap();
EXPECT_TRUE(Add->clone()->hasNoUnsignedWrap());
EXPECT_TRUE(Add->clone()->hasNoSignedWrap());
EXPECT_TRUE(Sub->clone()->hasNoUnsignedWrap());
EXPECT_TRUE(Sub->clone()->hasNoSignedWrap());
EXPECT_TRUE(Mul->clone()->hasNoUnsignedWrap());
EXPECT_TRUE(Mul->clone()->hasNoSignedWrap());
Add->setHasNoUnsignedWrap(false);
Sub->setHasNoUnsignedWrap(false);
Mul->setHasNoUnsignedWrap(false);
EXPECT_FALSE(Add->clone()->hasNoUnsignedWrap());
EXPECT_TRUE(Add->clone()->hasNoSignedWrap());
EXPECT_FALSE(Sub->clone()->hasNoUnsignedWrap());
EXPECT_TRUE(Sub->clone()->hasNoSignedWrap());
EXPECT_FALSE(Mul->clone()->hasNoUnsignedWrap());
EXPECT_TRUE(Mul->clone()->hasNoSignedWrap());
}
TEST(CloneInstruction, Inbounds) {
LLVMContext context;
Value *V = new Argument(Type::getInt32Ty(context)->getPointerTo());
Constant *Z = Constant::getNullValue(Type::getInt32Ty(context));
std::vector<Value *> ops;
ops.push_back(Z);
GetElementPtrInst *GEP = GetElementPtrInst::Create(V, ops.begin(), ops.end());
EXPECT_FALSE(GEP->clone()->isInBounds());
GEP->setIsInBounds();
EXPECT_TRUE(GEP->clone()->isInBounds());
}
TEST(CloneInstruction, Exact) {
LLVMContext context;
Value *V = new Argument(Type::getInt32Ty(context));
BinaryOperator *SDiv = BinaryOperator::Create(Instruction::SDiv, V, V);
EXPECT_FALSE(SDiv->clone()->isExact());
SDiv->setIsExact(true);
EXPECT_TRUE(SDiv->clone()->isExact());
}
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