mirror of
https://github.com/RPCSX/llvm.git
synced 2024-12-22 12:08:26 +00:00
f1f0a1f064
This reapplies r263258, which was reverted in r263321 because of issues on Clang side. From: Mehdi Amini <mehdi.amini@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@263393 91177308-0d34-0410-b5e6-96231b3b80d8
299 lines
11 KiB
C++
299 lines
11 KiB
C++
//===---- llvm/unittest/IR/PatternMatch.cpp - PatternMatch 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/ADT/STLExtras.h"
|
|
#include "llvm/Analysis/ValueTracking.h"
|
|
#include "llvm/IR/BasicBlock.h"
|
|
#include "llvm/IR/Constants.h"
|
|
#include "llvm/IR/DataLayout.h"
|
|
#include "llvm/IR/DerivedTypes.h"
|
|
#include "llvm/IR/Function.h"
|
|
#include "llvm/IR/IRBuilder.h"
|
|
#include "llvm/IR/Instructions.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
#include "llvm/IR/MDBuilder.h"
|
|
#include "llvm/IR/Module.h"
|
|
#include "llvm/IR/NoFolder.h"
|
|
#include "llvm/IR/Operator.h"
|
|
#include "llvm/IR/PatternMatch.h"
|
|
#include "llvm/IR/Type.h"
|
|
#include "gtest/gtest.h"
|
|
|
|
using namespace llvm;
|
|
using namespace llvm::PatternMatch;
|
|
|
|
namespace {
|
|
|
|
struct PatternMatchTest : ::testing::Test {
|
|
LLVMContext Ctx;
|
|
std::unique_ptr<Module> M;
|
|
Function *F;
|
|
BasicBlock *BB;
|
|
IRBuilder<NoFolder> IRB;
|
|
|
|
PatternMatchTest()
|
|
: M(new Module("PatternMatchTestModule", Ctx)),
|
|
F(Function::Create(
|
|
FunctionType::get(Type::getVoidTy(Ctx), /* IsVarArg */ false),
|
|
Function::ExternalLinkage, "f", M.get())),
|
|
BB(BasicBlock::Create(Ctx, "entry", F)), IRB(BB) {}
|
|
};
|
|
|
|
TEST_F(PatternMatchTest, OneUse) {
|
|
// Build up a little tree of values:
|
|
//
|
|
// One = (1 + 2) + 42
|
|
// Two = One + 42
|
|
// Leaf = (Two + 8) + (Two + 13)
|
|
Value *One = IRB.CreateAdd(IRB.CreateAdd(IRB.getInt32(1), IRB.getInt32(2)),
|
|
IRB.getInt32(42));
|
|
Value *Two = IRB.CreateAdd(One, IRB.getInt32(42));
|
|
Value *Leaf = IRB.CreateAdd(IRB.CreateAdd(Two, IRB.getInt32(8)),
|
|
IRB.CreateAdd(Two, IRB.getInt32(13)));
|
|
Value *V;
|
|
|
|
EXPECT_TRUE(m_OneUse(m_Value(V)).match(One));
|
|
EXPECT_EQ(One, V);
|
|
|
|
EXPECT_FALSE(m_OneUse(m_Value()).match(Two));
|
|
EXPECT_FALSE(m_OneUse(m_Value()).match(Leaf));
|
|
}
|
|
|
|
TEST_F(PatternMatchTest, FloatingPointOrderedMin) {
|
|
Type *FltTy = IRB.getFloatTy();
|
|
Value *L = ConstantFP::get(FltTy, 1.0);
|
|
Value *R = ConstantFP::get(FltTy, 2.0);
|
|
Value *MatchL, *MatchR;
|
|
|
|
// Test OLT.
|
|
EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test OLE.
|
|
EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test no match on OGE.
|
|
EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R)));
|
|
|
|
// Test no match on OGT.
|
|
EXPECT_FALSE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R)));
|
|
|
|
// Test match on OGE with inverted select.
|
|
EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), R, L)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test match on OGT with inverted select.
|
|
EXPECT_TRUE(m_OrdFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), R, L)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
}
|
|
|
|
TEST_F(PatternMatchTest, FloatingPointOrderedMax) {
|
|
Type *FltTy = IRB.getFloatTy();
|
|
Value *L = ConstantFP::get(FltTy, 1.0);
|
|
Value *R = ConstantFP::get(FltTy, 2.0);
|
|
Value *MatchL, *MatchR;
|
|
|
|
// Test OGT.
|
|
EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOGT(L, R), L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test OGE.
|
|
EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOGE(L, R), L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test no match on OLE.
|
|
EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), L, R)));
|
|
|
|
// Test no match on OLT.
|
|
EXPECT_FALSE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), L, R)));
|
|
|
|
// Test match on OLE with inverted select.
|
|
EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOLE(L, R), R, L)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test match on OLT with inverted select.
|
|
EXPECT_TRUE(m_OrdFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpOLT(L, R), R, L)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
}
|
|
|
|
TEST_F(PatternMatchTest, FloatingPointUnorderedMin) {
|
|
Type *FltTy = IRB.getFloatTy();
|
|
Value *L = ConstantFP::get(FltTy, 1.0);
|
|
Value *R = ConstantFP::get(FltTy, 2.0);
|
|
Value *MatchL, *MatchR;
|
|
|
|
// Test ULT.
|
|
EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test ULE.
|
|
EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test no match on UGE.
|
|
EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R)));
|
|
|
|
// Test no match on UGT.
|
|
EXPECT_FALSE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R)));
|
|
|
|
// Test match on UGE with inverted select.
|
|
EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), R, L)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test match on UGT with inverted select.
|
|
EXPECT_TRUE(m_UnordFMin(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), R, L)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
}
|
|
|
|
TEST_F(PatternMatchTest, FloatingPointUnorderedMax) {
|
|
Type *FltTy = IRB.getFloatTy();
|
|
Value *L = ConstantFP::get(FltTy, 1.0);
|
|
Value *R = ConstantFP::get(FltTy, 2.0);
|
|
Value *MatchL, *MatchR;
|
|
|
|
// Test UGT.
|
|
EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpUGT(L, R), L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test UGE.
|
|
EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpUGE(L, R), L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test no match on ULE.
|
|
EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), L, R)));
|
|
|
|
// Test no match on ULT.
|
|
EXPECT_FALSE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), L, R)));
|
|
|
|
// Test match on ULE with inverted select.
|
|
EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpULE(L, R), R, L)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
// Test match on ULT with inverted select.
|
|
EXPECT_TRUE(m_UnordFMax(m_Value(MatchL), m_Value(MatchR))
|
|
.match(IRB.CreateSelect(IRB.CreateFCmpULT(L, R), R, L)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
}
|
|
|
|
TEST_F(PatternMatchTest, OverflowingBinOps) {
|
|
Value *L = IRB.getInt32(1);
|
|
Value *R = IRB.getInt32(2);
|
|
Value *MatchL, *MatchR;
|
|
|
|
EXPECT_TRUE(
|
|
m_NSWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWAdd(L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
MatchL = MatchR = nullptr;
|
|
EXPECT_TRUE(
|
|
m_NSWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWSub(L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
MatchL = MatchR = nullptr;
|
|
EXPECT_TRUE(
|
|
m_NSWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNSWMul(L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
MatchL = MatchR = nullptr;
|
|
EXPECT_TRUE(m_NSWShl(m_Value(MatchL), m_Value(MatchR)).match(
|
|
IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
EXPECT_TRUE(
|
|
m_NUWAdd(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWAdd(L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
MatchL = MatchR = nullptr;
|
|
EXPECT_TRUE(
|
|
m_NUWSub(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWSub(L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
MatchL = MatchR = nullptr;
|
|
EXPECT_TRUE(
|
|
m_NUWMul(m_Value(MatchL), m_Value(MatchR)).match(IRB.CreateNUWMul(L, R)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
MatchL = MatchR = nullptr;
|
|
EXPECT_TRUE(m_NUWShl(m_Value(MatchL), m_Value(MatchR)).match(
|
|
IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false)));
|
|
EXPECT_EQ(L, MatchL);
|
|
EXPECT_EQ(R, MatchR);
|
|
|
|
EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R)));
|
|
EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R)));
|
|
EXPECT_FALSE(m_NSWAdd(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R)));
|
|
EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R)));
|
|
EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R)));
|
|
EXPECT_FALSE(m_NSWSub(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R)));
|
|
EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R)));
|
|
EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNUWMul(L, R)));
|
|
EXPECT_FALSE(m_NSWMul(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R)));
|
|
EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R)));
|
|
EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(
|
|
IRB.CreateShl(L, R, "", /* NUW */ true, /* NSW */ false)));
|
|
EXPECT_FALSE(m_NSWShl(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R)));
|
|
|
|
EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateAdd(L, R)));
|
|
EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNSWAdd(L, R)));
|
|
EXPECT_FALSE(m_NUWAdd(m_Value(), m_Value()).match(IRB.CreateNUWSub(L, R)));
|
|
EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateSub(L, R)));
|
|
EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNSWSub(L, R)));
|
|
EXPECT_FALSE(m_NUWSub(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R)));
|
|
EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateMul(L, R)));
|
|
EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNSWMul(L, R)));
|
|
EXPECT_FALSE(m_NUWMul(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R)));
|
|
EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateShl(L, R)));
|
|
EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(
|
|
IRB.CreateShl(L, R, "", /* NUW */ false, /* NSW */ true)));
|
|
EXPECT_FALSE(m_NUWShl(m_Value(), m_Value()).match(IRB.CreateNUWAdd(L, R)));
|
|
}
|
|
|
|
} // anonymous namespace.
|