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143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
//===- Cloning.cpp - Unit tests for the Cloner ----------------------------===//
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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 "gtest/gtest.h"
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#include "llvm/Argument.h"
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#include "llvm/Constant.h"
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#include "llvm/Instructions.h"
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#include "llvm/LLVMContext.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include "llvm/ADT/STLExtras.h"
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using namespace llvm;
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class CloneInstruction : public ::testing::Test {
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protected:
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virtual void SetUp() {
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V = NULL;
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}
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template <typename T>
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T *clone(T *V1) {
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Value *V2 = V1->clone();
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Orig.insert(V1);
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Clones.insert(V2);
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return cast<T>(V2);
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}
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void eraseClones() {
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DeleteContainerPointers(Clones);
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}
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virtual void TearDown() {
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eraseClones();
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DeleteContainerPointers(Orig);
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delete V;
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}
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SmallPtrSet<Value *, 4> Orig; // Erase on exit
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SmallPtrSet<Value *, 4> Clones; // Erase in eraseClones
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LLVMContext context;
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Value *V;
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};
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TEST_F(CloneInstruction, OverflowBits) {
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V = new Argument(Type::getInt32Ty(context));
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BinaryOperator *Add = BinaryOperator::Create(Instruction::Add, V, V);
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BinaryOperator *Sub = BinaryOperator::Create(Instruction::Sub, V, V);
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BinaryOperator *Mul = BinaryOperator::Create(Instruction::Mul, V, V);
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BinaryOperator *AddClone = this->clone(Add);
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BinaryOperator *SubClone = this->clone(Sub);
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BinaryOperator *MulClone = this->clone(Mul);
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EXPECT_FALSE(AddClone->hasNoUnsignedWrap());
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EXPECT_FALSE(AddClone->hasNoSignedWrap());
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EXPECT_FALSE(SubClone->hasNoUnsignedWrap());
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EXPECT_FALSE(SubClone->hasNoSignedWrap());
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EXPECT_FALSE(MulClone->hasNoUnsignedWrap());
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EXPECT_FALSE(MulClone->hasNoSignedWrap());
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eraseClones();
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Add->setHasNoUnsignedWrap();
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Sub->setHasNoUnsignedWrap();
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Mul->setHasNoUnsignedWrap();
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AddClone = this->clone(Add);
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SubClone = this->clone(Sub);
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MulClone = this->clone(Mul);
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EXPECT_TRUE(AddClone->hasNoUnsignedWrap());
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EXPECT_FALSE(AddClone->hasNoSignedWrap());
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EXPECT_TRUE(SubClone->hasNoUnsignedWrap());
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EXPECT_FALSE(SubClone->hasNoSignedWrap());
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EXPECT_TRUE(MulClone->hasNoUnsignedWrap());
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EXPECT_FALSE(MulClone->hasNoSignedWrap());
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eraseClones();
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Add->setHasNoSignedWrap();
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Sub->setHasNoSignedWrap();
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Mul->setHasNoSignedWrap();
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AddClone = this->clone(Add);
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SubClone = this->clone(Sub);
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MulClone = this->clone(Mul);
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EXPECT_TRUE(AddClone->hasNoUnsignedWrap());
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EXPECT_TRUE(AddClone->hasNoSignedWrap());
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EXPECT_TRUE(SubClone->hasNoUnsignedWrap());
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EXPECT_TRUE(SubClone->hasNoSignedWrap());
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EXPECT_TRUE(MulClone->hasNoUnsignedWrap());
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EXPECT_TRUE(MulClone->hasNoSignedWrap());
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eraseClones();
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Add->setHasNoUnsignedWrap(false);
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Sub->setHasNoUnsignedWrap(false);
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Mul->setHasNoUnsignedWrap(false);
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AddClone = this->clone(Add);
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SubClone = this->clone(Sub);
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MulClone = this->clone(Mul);
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EXPECT_FALSE(AddClone->hasNoUnsignedWrap());
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EXPECT_TRUE(AddClone->hasNoSignedWrap());
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EXPECT_FALSE(SubClone->hasNoUnsignedWrap());
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EXPECT_TRUE(SubClone->hasNoSignedWrap());
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EXPECT_FALSE(MulClone->hasNoUnsignedWrap());
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EXPECT_TRUE(MulClone->hasNoSignedWrap());
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}
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TEST_F(CloneInstruction, Inbounds) {
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V = new Argument(Type::getInt32PtrTy(context));
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Constant *Z = Constant::getNullValue(Type::getInt32Ty(context));
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std::vector<Value *> ops;
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ops.push_back(Z);
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GetElementPtrInst *GEP = GetElementPtrInst::Create(V, ops.begin(), ops.end());
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EXPECT_FALSE(this->clone(GEP)->isInBounds());
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GEP->setIsInBounds();
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EXPECT_TRUE(this->clone(GEP)->isInBounds());
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}
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TEST_F(CloneInstruction, Exact) {
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V = new Argument(Type::getInt32Ty(context));
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BinaryOperator *SDiv = BinaryOperator::Create(Instruction::SDiv, V, V);
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EXPECT_FALSE(this->clone(SDiv)->isExact());
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SDiv->setIsExact(true);
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EXPECT_TRUE(this->clone(SDiv)->isExact());
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}
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