mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-11-23 19:23:23 +01:00
c8b30de05f
This cleans up all LoadInst creation in LLVM to explicitly pass the value type rather than deriving it from the pointer's element-type. Differential Revision: https://reviews.llvm.org/D57172 llvm-svn: 352911
210 lines
7.2 KiB
C++
210 lines
7.2 KiB
C++
//===- PhiValuesTest.cpp - PhiValues unit tests ---------------------------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/Analysis/PhiValues.h"
|
|
#include "llvm/IR/BasicBlock.h"
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/IR/Instructions.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/IR/Type.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
|
|
TEST(PhiValuesTest, SimplePhi) {
|
|
LLVMContext C;
|
|
Module M("PhiValuesTest", C);
|
|
|
|
Type *VoidTy = Type::getVoidTy(C);
|
|
Type *I1Ty = Type::getInt1Ty(C);
|
|
Type *I32Ty = Type::getInt32Ty(C);
|
|
Type *I32PtrTy = Type::getInt32PtrTy(C);
|
|
|
|
// Create a function with phis that do not have other phis as incoming values
|
|
Function *F = Function::Create(FunctionType::get(VoidTy, false),
|
|
Function::ExternalLinkage, "f", M);
|
|
|
|
BasicBlock *Entry = BasicBlock::Create(C, "entry", F);
|
|
BasicBlock *If = BasicBlock::Create(C, "if", F);
|
|
BasicBlock *Else = BasicBlock::Create(C, "else", F);
|
|
BasicBlock *Then = BasicBlock::Create(C, "then", F);
|
|
BranchInst::Create(If, Else, UndefValue::get(I1Ty), Entry);
|
|
BranchInst::Create(Then, If);
|
|
BranchInst::Create(Then, Else);
|
|
|
|
Value *Val1 = new LoadInst(I32Ty, UndefValue::get(I32PtrTy), "val1", Entry);
|
|
Value *Val2 = new LoadInst(I32Ty, UndefValue::get(I32PtrTy), "val2", Entry);
|
|
Value *Val3 = new LoadInst(I32Ty, UndefValue::get(I32PtrTy), "val3", Entry);
|
|
Value *Val4 = new LoadInst(I32Ty, UndefValue::get(I32PtrTy), "val4", Entry);
|
|
|
|
PHINode *Phi1 = PHINode::Create(I32Ty, 2, "phi1", Then);
|
|
Phi1->addIncoming(Val1, If);
|
|
Phi1->addIncoming(Val2, Else);
|
|
PHINode *Phi2 = PHINode::Create(I32Ty, 2, "phi2", Then);
|
|
Phi2->addIncoming(Val1, If);
|
|
Phi2->addIncoming(Val3, Else);
|
|
|
|
PhiValues PV(*F);
|
|
PhiValues::ValueSet Vals;
|
|
|
|
// Check that simple usage works
|
|
Vals = PV.getValuesForPhi(Phi1);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val1));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
Vals = PV.getValuesForPhi(Phi2);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val1));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
|
|
// Check that values are updated when one value is replaced with another
|
|
Val1->replaceAllUsesWith(Val4);
|
|
PV.invalidateValue(Val1);
|
|
Vals = PV.getValuesForPhi(Phi1);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val4));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
Vals = PV.getValuesForPhi(Phi2);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val4));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
|
|
// Check that setting in incoming value directly updates the values
|
|
Phi1->setIncomingValue(0, Val1);
|
|
PV.invalidateValue(Phi1);
|
|
Vals = PV.getValuesForPhi(Phi1);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val1));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
}
|
|
|
|
TEST(PhiValuesTest, DependentPhi) {
|
|
LLVMContext C;
|
|
Module M("PhiValuesTest", C);
|
|
|
|
Type *VoidTy = Type::getVoidTy(C);
|
|
Type *I1Ty = Type::getInt1Ty(C);
|
|
Type *I32Ty = Type::getInt32Ty(C);
|
|
Type *I32PtrTy = Type::getInt32PtrTy(C);
|
|
|
|
// Create a function with a phi that has another phi as an incoming value
|
|
Function *F = Function::Create(FunctionType::get(VoidTy, false),
|
|
Function::ExternalLinkage, "f", M);
|
|
|
|
BasicBlock *Entry = BasicBlock::Create(C, "entry", F);
|
|
BasicBlock *If1 = BasicBlock::Create(C, "if1", F);
|
|
BasicBlock *Else1 = BasicBlock::Create(C, "else1", F);
|
|
BasicBlock *Then = BasicBlock::Create(C, "then", F);
|
|
BasicBlock *If2 = BasicBlock::Create(C, "if2", F);
|
|
BasicBlock *Else2 = BasicBlock::Create(C, "else2", F);
|
|
BasicBlock *End = BasicBlock::Create(C, "then", F);
|
|
BranchInst::Create(If1, Else1, UndefValue::get(I1Ty), Entry);
|
|
BranchInst::Create(Then, If1);
|
|
BranchInst::Create(Then, Else1);
|
|
BranchInst::Create(If2, Else2, UndefValue::get(I1Ty), Then);
|
|
BranchInst::Create(End, If2);
|
|
BranchInst::Create(End, Else2);
|
|
|
|
Value *Val1 = new LoadInst(I32Ty, UndefValue::get(I32PtrTy), "val1", Entry);
|
|
Value *Val2 = new LoadInst(I32Ty, UndefValue::get(I32PtrTy), "val2", Entry);
|
|
Value *Val3 = new LoadInst(I32Ty, UndefValue::get(I32PtrTy), "val3", Entry);
|
|
Value *Val4 = new LoadInst(I32Ty, UndefValue::get(I32PtrTy), "val4", Entry);
|
|
|
|
PHINode *Phi1 = PHINode::Create(I32Ty, 2, "phi1", Then);
|
|
Phi1->addIncoming(Val1, If1);
|
|
Phi1->addIncoming(Val2, Else1);
|
|
PHINode *Phi2 = PHINode::Create(I32Ty, 2, "phi2", Then);
|
|
Phi2->addIncoming(Val2, If1);
|
|
Phi2->addIncoming(Val3, Else1);
|
|
PHINode *Phi3 = PHINode::Create(I32Ty, 2, "phi3", End);
|
|
Phi3->addIncoming(Phi1, If2);
|
|
Phi3->addIncoming(Val3, Else2);
|
|
|
|
PhiValues PV(*F);
|
|
PhiValues::ValueSet Vals;
|
|
|
|
// Check that simple usage works
|
|
Vals = PV.getValuesForPhi(Phi1);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val1));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
Vals = PV.getValuesForPhi(Phi2);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
Vals = PV.getValuesForPhi(Phi3);
|
|
EXPECT_EQ(Vals.size(), 3u);
|
|
EXPECT_TRUE(Vals.count(Val1));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
|
|
// Check that changing an incoming value in the dependent phi changes the depending phi
|
|
Phi1->setIncomingValue(0, Val4);
|
|
PV.invalidateValue(Phi1);
|
|
Vals = PV.getValuesForPhi(Phi1);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val4));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
Vals = PV.getValuesForPhi(Phi2);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
Vals = PV.getValuesForPhi(Phi3);
|
|
EXPECT_EQ(Vals.size(), 3u);
|
|
EXPECT_TRUE(Vals.count(Val4));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
|
|
// Check that replacing an incoming phi with a value works
|
|
Phi3->setIncomingValue(0, Val1);
|
|
PV.invalidateValue(Phi3);
|
|
Vals = PV.getValuesForPhi(Phi1);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val4));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
Vals = PV.getValuesForPhi(Phi2);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
Vals = PV.getValuesForPhi(Phi3);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val1));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
|
|
// Check that adding a phi as an incoming value works
|
|
Phi3->setIncomingValue(1, Phi2);
|
|
PV.invalidateValue(Phi3);
|
|
Vals = PV.getValuesForPhi(Phi1);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val4));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
Vals = PV.getValuesForPhi(Phi2);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
Vals = PV.getValuesForPhi(Phi3);
|
|
EXPECT_EQ(Vals.size(), 3u);
|
|
EXPECT_TRUE(Vals.count(Val1));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
EXPECT_TRUE(Vals.count(Val3));
|
|
|
|
// Check that replacing an incoming phi then deleting it works
|
|
Phi3->setIncomingValue(1, Val2);
|
|
PV.invalidateValue(Phi2);
|
|
Phi2->eraseFromParent();
|
|
PV.invalidateValue(Phi3);
|
|
Vals = PV.getValuesForPhi(Phi1);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val4));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
Vals = PV.getValuesForPhi(Phi3);
|
|
EXPECT_EQ(Vals.size(), 2u);
|
|
EXPECT_TRUE(Vals.count(Val1));
|
|
EXPECT_TRUE(Vals.count(Val2));
|
|
}
|