mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-13 20:32:21 +00:00
Use IRBuilder instead of ConstantInt methods. It simplifies code a little bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@183328 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakub Staszak
parent
9a508ef64a
commit
cc81b38c4c
@ -402,7 +402,7 @@ FoldCmpLoadFromIndexedGlobal(GetElementPtrInst *GEP, GlobalVariable *GV,
|
||||
if (SecondTrueElement != Overdefined) {
|
||||
// None true -> false.
|
||||
if (FirstTrueElement == Undefined)
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getFalse(GEP->getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getFalse());
|
||||
|
||||
Value *FirstTrueIdx = ConstantInt::get(Idx->getType(), FirstTrueElement);
|
||||
|
||||
@ -422,7 +422,7 @@ FoldCmpLoadFromIndexedGlobal(GetElementPtrInst *GEP, GlobalVariable *GV,
|
||||
if (SecondFalseElement != Overdefined) {
|
||||
// None false -> true.
|
||||
if (FirstFalseElement == Undefined)
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getTrue(GEP->getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getTrue());
|
||||
|
||||
Value *FirstFalseIdx = ConstantInt::get(Idx->getType(), FirstFalseElement);
|
||||
|
||||
@ -710,10 +710,8 @@ Instruction *InstCombiner::FoldGEPICmp(GEPOperator *GEPLHS, Value *RHS,
|
||||
}
|
||||
}
|
||||
|
||||
if (NumDifferences == 0) // SAME GEP?
|
||||
return ReplaceInstUsesWith(I, // No comparison is needed here.
|
||||
ConstantInt::get(Type::getInt1Ty(I.getContext()),
|
||||
ICmpInst::isTrueWhenEqual(Cond)));
|
||||
if (NumDifferences == 0) // SAME GEP? No comparison is needed here.
|
||||
return ReplaceInstUsesWith(I, Builder->getInt1(Cond));
|
||||
|
||||
else if (NumDifferences == 1 && GEPsInBounds) {
|
||||
Value *LHSV = GEPLHS->getOperand(DiffOperand);
|
||||
@ -752,11 +750,11 @@ Instruction *InstCombiner::FoldICmpAddOpCst(ICmpInst &ICI,
|
||||
|
||||
// (X+4) == X -> false.
|
||||
if (Pred == ICmpInst::ICMP_EQ)
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getFalse(X->getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getFalse());
|
||||
|
||||
// (X+4) != X -> true.
|
||||
if (Pred == ICmpInst::ICMP_NE)
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getTrue(X->getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getTrue());
|
||||
|
||||
// From this point on, we know that (X+C <= X) --> (X+C < X) because C != 0,
|
||||
// so the values can never be equal. Similarly for all other "or equals"
|
||||
@ -798,7 +796,7 @@ Instruction *InstCombiner::FoldICmpAddOpCst(ICmpInst &ICI,
|
||||
// (X+ -1) >s X --> X <s (MAXSINT-(-1-1)) --> X == -128
|
||||
|
||||
assert(Pred == ICmpInst::ICMP_SGT || Pred == ICmpInst::ICMP_SGE);
|
||||
Constant *C = ConstantInt::get(X->getContext(), CI->getValue()-1);
|
||||
Constant *C = Builder->getInt(CI->getValue()-1);
|
||||
return new ICmpInst(ICmpInst::ICMP_SLT, X, ConstantExpr::getSub(SMax, C));
|
||||
}
|
||||
|
||||
@ -921,7 +919,7 @@ Instruction *InstCombiner::FoldICmpDivCst(ICmpInst &ICI, BinaryOperator *DivI,
|
||||
default: llvm_unreachable("Unhandled icmp opcode!");
|
||||
case ICmpInst::ICMP_EQ:
|
||||
if (LoOverflow && HiOverflow)
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getFalse(ICI.getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getFalse());
|
||||
if (HiOverflow)
|
||||
return new ICmpInst(DivIsSigned ? ICmpInst::ICMP_SGE :
|
||||
ICmpInst::ICMP_UGE, X, LoBound);
|
||||
@ -932,7 +930,7 @@ Instruction *InstCombiner::FoldICmpDivCst(ICmpInst &ICI, BinaryOperator *DivI,
|
||||
DivIsSigned, true));
|
||||
case ICmpInst::ICMP_NE:
|
||||
if (LoOverflow && HiOverflow)
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getTrue(ICI.getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getTrue());
|
||||
if (HiOverflow)
|
||||
return new ICmpInst(DivIsSigned ? ICmpInst::ICMP_SLT :
|
||||
ICmpInst::ICMP_ULT, X, LoBound);
|
||||
@ -944,16 +942,16 @@ Instruction *InstCombiner::FoldICmpDivCst(ICmpInst &ICI, BinaryOperator *DivI,
|
||||
case ICmpInst::ICMP_ULT:
|
||||
case ICmpInst::ICMP_SLT:
|
||||
if (LoOverflow == +1) // Low bound is greater than input range.
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getTrue(ICI.getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getTrue());
|
||||
if (LoOverflow == -1) // Low bound is less than input range.
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getFalse(ICI.getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getFalse());
|
||||
return new ICmpInst(Pred, X, LoBound);
|
||||
case ICmpInst::ICMP_UGT:
|
||||
case ICmpInst::ICMP_SGT:
|
||||
if (HiOverflow == +1) // High bound greater than input range.
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getFalse(ICI.getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getFalse());
|
||||
if (HiOverflow == -1) // High bound less than input range.
|
||||
return ReplaceInstUsesWith(ICI, ConstantInt::getTrue(ICI.getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getTrue());
|
||||
if (Pred == ICmpInst::ICMP_UGT)
|
||||
return new ICmpInst(ICmpInst::ICMP_UGE, X, HiBound);
|
||||
return new ICmpInst(ICmpInst::ICMP_SGE, X, HiBound);
|
||||
@ -1017,7 +1015,7 @@ Instruction *InstCombiner::FoldICmpShrCst(ICmpInst &ICI, BinaryOperator *Shr,
|
||||
// If we are comparing against bits always shifted out, the
|
||||
// comparison cannot succeed.
|
||||
APInt Comp = CmpRHSV << ShAmtVal;
|
||||
ConstantInt *ShiftedCmpRHS = ConstantInt::get(ICI.getContext(), Comp);
|
||||
ConstantInt *ShiftedCmpRHS = Builder->getInt(Comp);
|
||||
if (Shr->getOpcode() == Instruction::LShr)
|
||||
Comp = Comp.lshr(ShAmtVal);
|
||||
else
|
||||
@ -1025,8 +1023,7 @@ Instruction *InstCombiner::FoldICmpShrCst(ICmpInst &ICI, BinaryOperator *Shr,
|
||||
|
||||
if (Comp != CmpRHSV) { // Comparing against a bit that we know is zero.
|
||||
bool IsICMP_NE = ICI.getPredicate() == ICmpInst::ICMP_NE;
|
||||
Constant *Cst = ConstantInt::get(Type::getInt1Ty(ICI.getContext()),
|
||||
IsICMP_NE);
|
||||
Constant *Cst = Builder->getInt1(IsICMP_NE);
|
||||
return ReplaceInstUsesWith(ICI, Cst);
|
||||
}
|
||||
|
||||
@ -1039,7 +1036,7 @@ Instruction *InstCombiner::FoldICmpShrCst(ICmpInst &ICI, BinaryOperator *Shr,
|
||||
if (Shr->hasOneUse()) {
|
||||
// Otherwise strength reduce the shift into an and.
|
||||
APInt Val(APInt::getHighBitsSet(TypeBits, TypeBits - ShAmtVal));
|
||||
Constant *Mask = ConstantInt::get(ICI.getContext(), Val);
|
||||
Constant *Mask = Builder->getInt(Val);
|
||||
|
||||
Value *And = Builder->CreateAnd(Shr->getOperand(0),
|
||||
Mask, Shr->getName()+".mask");
|
||||
@ -1072,7 +1069,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
APInt NewRHS = RHS->getValue().zext(SrcBits);
|
||||
NewRHS |= KnownOne & APInt::getHighBitsSet(SrcBits, SrcBits-DstBits);
|
||||
return new ICmpInst(ICI.getPredicate(), LHSI->getOperand(0),
|
||||
ConstantInt::get(ICI.getContext(), NewRHS));
|
||||
Builder->getInt(NewRHS));
|
||||
}
|
||||
}
|
||||
break;
|
||||
@ -1115,8 +1112,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
? ICI.getUnsignedPredicate()
|
||||
: ICI.getSignedPredicate();
|
||||
return new ICmpInst(Pred, LHSI->getOperand(0),
|
||||
ConstantInt::get(ICI.getContext(),
|
||||
RHSV ^ SignBit));
|
||||
Builder->getInt(RHSV ^ SignBit));
|
||||
}
|
||||
|
||||
// (icmp u/s (xor A ~SignBit), C) -> (icmp s/u (xor C ~SignBit), A)
|
||||
@ -1127,8 +1123,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
: ICI.getSignedPredicate();
|
||||
Pred = ICI.getSwappedPredicate(Pred);
|
||||
return new ICmpInst(Pred, LHSI->getOperand(0),
|
||||
ConstantInt::get(ICI.getContext(),
|
||||
RHSV ^ NotSignBit));
|
||||
Builder->getInt(RHSV ^ NotSignBit));
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1218,11 +1213,9 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
// As a special case, check to see if this means that the
|
||||
// result is always true or false now.
|
||||
if (ICI.getPredicate() == ICmpInst::ICMP_EQ)
|
||||
return ReplaceInstUsesWith(ICI,
|
||||
ConstantInt::getFalse(ICI.getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getFalse());
|
||||
if (ICI.getPredicate() == ICmpInst::ICMP_NE)
|
||||
return ReplaceInstUsesWith(ICI,
|
||||
ConstantInt::getTrue(ICI.getContext()));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getTrue());
|
||||
} else {
|
||||
ICI.setOperand(1, NewCst);
|
||||
Constant *NewAndCST;
|
||||
@ -1344,8 +1337,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
ShAmt);
|
||||
if (Comp != RHS) {// Comparing against a bit that we know is zero.
|
||||
bool IsICMP_NE = ICI.getPredicate() == ICmpInst::ICMP_NE;
|
||||
Constant *Cst =
|
||||
ConstantInt::get(Type::getInt1Ty(ICI.getContext()), IsICMP_NE);
|
||||
Constant *Cst = Builder->getInt1(IsICMP_NE);
|
||||
return ReplaceInstUsesWith(ICI, Cst);
|
||||
}
|
||||
|
||||
@ -1364,9 +1356,8 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
if (LHSI->hasOneUse()) {
|
||||
// Otherwise strength reduce the shift into an and.
|
||||
uint32_t ShAmtVal = (uint32_t)ShAmt->getLimitedValue(TypeBits);
|
||||
Constant *Mask =
|
||||
ConstantInt::get(ICI.getContext(), APInt::getLowBitsSet(TypeBits,
|
||||
TypeBits-ShAmtVal));
|
||||
Constant *Mask = Builder->getInt(APInt::getLowBitsSet(TypeBits,
|
||||
TypeBits - ShAmtVal));
|
||||
|
||||
Value *And =
|
||||
Builder->CreateAnd(LHSI->getOperand(0),Mask, LHSI->getName()+".mask");
|
||||
@ -1464,18 +1455,18 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
if (ICI.isSigned()) {
|
||||
if (CR.getLower().isSignBit()) {
|
||||
return new ICmpInst(ICmpInst::ICMP_SLT, LHSI->getOperand(0),
|
||||
ConstantInt::get(ICI.getContext(),CR.getUpper()));
|
||||
Builder->getInt(CR.getUpper()));
|
||||
} else if (CR.getUpper().isSignBit()) {
|
||||
return new ICmpInst(ICmpInst::ICMP_SGE, LHSI->getOperand(0),
|
||||
ConstantInt::get(ICI.getContext(),CR.getLower()));
|
||||
Builder->getInt(CR.getLower()));
|
||||
}
|
||||
} else {
|
||||
if (CR.getLower().isMinValue()) {
|
||||
return new ICmpInst(ICmpInst::ICMP_ULT, LHSI->getOperand(0),
|
||||
ConstantInt::get(ICI.getContext(),CR.getUpper()));
|
||||
Builder->getInt(CR.getUpper()));
|
||||
} else if (CR.getUpper().isMinValue()) {
|
||||
return new ICmpInst(ICmpInst::ICMP_UGE, LHSI->getOperand(0),
|
||||
ConstantInt::get(ICI.getContext(),CR.getLower()));
|
||||
Builder->getInt(CR.getLower()));
|
||||
}
|
||||
}
|
||||
}
|
||||
@ -1555,9 +1546,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
if (ConstantInt *BOC = dyn_cast<ConstantInt>(BO->getOperand(1))) {
|
||||
Constant *NotCI = ConstantExpr::getNot(RHS);
|
||||
if (!ConstantExpr::getAnd(BOC, NotCI)->isNullValue())
|
||||
return ReplaceInstUsesWith(ICI,
|
||||
ConstantInt::get(Type::getInt1Ty(ICI.getContext()),
|
||||
isICMP_NE));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getInt1(isICMP_NE));
|
||||
}
|
||||
break;
|
||||
|
||||
@ -1566,9 +1555,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
// If bits are being compared against that are and'd out, then the
|
||||
// comparison can never succeed!
|
||||
if ((RHSV & ~BOC->getValue()) != 0)
|
||||
return ReplaceInstUsesWith(ICI,
|
||||
ConstantInt::get(Type::getInt1Ty(ICI.getContext()),
|
||||
isICMP_NE));
|
||||
return ReplaceInstUsesWith(ICI, Builder->getInt1(isICMP_NE));
|
||||
|
||||
// If we have ((X & C) == C), turn it into ((X & C) != 0).
|
||||
if (RHS == BOC && RHSV.isPowerOf2())
|
||||
@ -1619,7 +1606,7 @@ Instruction *InstCombiner::visitICmpInstWithInstAndIntCst(ICmpInst &ICI,
|
||||
case Intrinsic::bswap:
|
||||
Worklist.Add(II);
|
||||
ICI.setOperand(0, II->getArgOperand(0));
|
||||
ICI.setOperand(1, ConstantInt::get(II->getContext(), RHSV.byteSwap()));
|
||||
ICI.setOperand(1, Builder->getInt(RHSV.byteSwap()));
|
||||
return &ICI;
|
||||
case Intrinsic::ctlz:
|
||||
case Intrinsic::cttz:
|
||||
@ -2041,19 +2028,19 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
|
||||
case ICmpInst::ICMP_ULE:
|
||||
assert(!CI->isMaxValue(false)); // A <=u MAX -> TRUE
|
||||
return new ICmpInst(ICmpInst::ICMP_ULT, Op0,
|
||||
ConstantInt::get(CI->getContext(), CI->getValue()+1));
|
||||
Builder->getInt(CI->getValue()+1));
|
||||
case ICmpInst::ICMP_SLE:
|
||||
assert(!CI->isMaxValue(true)); // A <=s MAX -> TRUE
|
||||
return new ICmpInst(ICmpInst::ICMP_SLT, Op0,
|
||||
ConstantInt::get(CI->getContext(), CI->getValue()+1));
|
||||
Builder->getInt(CI->getValue()+1));
|
||||
case ICmpInst::ICMP_UGE:
|
||||
assert(!CI->isMinValue(false)); // A >=u MIN -> TRUE
|
||||
return new ICmpInst(ICmpInst::ICMP_UGT, Op0,
|
||||
ConstantInt::get(CI->getContext(), CI->getValue()-1));
|
||||
Builder->getInt(CI->getValue()-1));
|
||||
case ICmpInst::ICMP_SGE:
|
||||
assert(!CI->isMinValue(true)); // A >=s MIN -> TRUE
|
||||
return new ICmpInst(ICmpInst::ICMP_SGT, Op0,
|
||||
ConstantInt::get(CI->getContext(), CI->getValue()-1));
|
||||
Builder->getInt(CI->getValue()-1));
|
||||
}
|
||||
|
||||
// If this comparison is a normal comparison, it demands all
|
||||
@ -2192,7 +2179,7 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
|
||||
if (ConstantInt *CI = dyn_cast<ConstantInt>(Op1)) {
|
||||
if (Op1Max == Op0Min+1) // A <u C -> A == C-1 if min(A)+1 == C
|
||||
return new ICmpInst(ICmpInst::ICMP_EQ, Op0,
|
||||
ConstantInt::get(CI->getContext(), CI->getValue()-1));
|
||||
Builder->getInt(CI->getValue()-1));
|
||||
|
||||
// (x <u 2147483648) -> (x >s -1) -> true if sign bit clear
|
||||
if (CI->isMinValue(true))
|
||||
@ -2211,7 +2198,7 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
|
||||
if (ConstantInt *CI = dyn_cast<ConstantInt>(Op1)) {
|
||||
if (Op1Min == Op0Max-1) // A >u C -> A == C+1 if max(a)-1 == C
|
||||
return new ICmpInst(ICmpInst::ICMP_EQ, Op0,
|
||||
ConstantInt::get(CI->getContext(), CI->getValue()+1));
|
||||
Builder->getInt(CI->getValue()+1));
|
||||
|
||||
// (x >u 2147483647) -> (x <s 0) -> true if sign bit set
|
||||
if (CI->isMaxValue(true))
|
||||
@ -2229,7 +2216,7 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
|
||||
if (ConstantInt *CI = dyn_cast<ConstantInt>(Op1)) {
|
||||
if (Op1Max == Op0Min+1) // A <s C -> A == C-1 if min(A)+1 == C
|
||||
return new ICmpInst(ICmpInst::ICMP_EQ, Op0,
|
||||
ConstantInt::get(CI->getContext(), CI->getValue()-1));
|
||||
Builder->getInt(CI->getValue()-1));
|
||||
}
|
||||
break;
|
||||
case ICmpInst::ICMP_SGT:
|
||||
@ -2243,7 +2230,7 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
|
||||
if (ConstantInt *CI = dyn_cast<ConstantInt>(Op1)) {
|
||||
if (Op1Min == Op0Max-1) // A >s C -> A == C+1 if max(A)-1 == C
|
||||
return new ICmpInst(ICmpInst::ICMP_EQ, Op0,
|
||||
ConstantInt::get(CI->getContext(), CI->getValue()+1));
|
||||
Builder->getInt(CI->getValue()+1));
|
||||
}
|
||||
break;
|
||||
case ICmpInst::ICMP_SGE:
|
||||
@ -2719,8 +2706,7 @@ Instruction *InstCombiner::visitICmpInst(ICmpInst &I) {
|
||||
ConstantInt *C1, *C2;
|
||||
if (match(B, m_ConstantInt(C1)) &&
|
||||
match(D, m_ConstantInt(C2)) && Op1->hasOneUse()) {
|
||||
Constant *NC = ConstantInt::get(I.getContext(),
|
||||
C1->getValue() ^ C2->getValue());
|
||||
Constant *NC = Builder->getInt(C1->getValue() ^ C2->getValue());
|
||||
Value *Xor = Builder->CreateXor(C, NC);
|
||||
return new ICmpInst(I.getPredicate(), A, Xor);
|
||||
}
|
||||
@ -2885,9 +2871,9 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
Pred = ICmpInst::ICMP_NE;
|
||||
break;
|
||||
case FCmpInst::FCMP_ORD:
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getTrue(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
case FCmpInst::FCMP_UNO:
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getFalse(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
}
|
||||
|
||||
IntegerType *IntTy = cast<IntegerType>(LHSI->getOperand(0)->getType());
|
||||
@ -2907,8 +2893,8 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
if (SMax.compare(RHS) == APFloat::cmpLessThan) { // smax < 13123.0
|
||||
if (Pred == ICmpInst::ICMP_NE || Pred == ICmpInst::ICMP_SLT ||
|
||||
Pred == ICmpInst::ICMP_SLE)
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getTrue(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getFalse(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
return ReplaceInstUsesWith(I, Builder->getFalse());
|
||||
}
|
||||
} else {
|
||||
// If the RHS value is > UnsignedMax, fold the comparison. This handles
|
||||
@ -2919,8 +2905,8 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
if (UMax.compare(RHS) == APFloat::cmpLessThan) { // umax < 13123.0
|
||||
if (Pred == ICmpInst::ICMP_NE || Pred == ICmpInst::ICMP_ULT ||
|
||||
Pred == ICmpInst::ICMP_ULE)
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getTrue(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getFalse(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
return ReplaceInstUsesWith(I, Builder->getFalse());
|
||||
}
|
||||
}
|
||||
|
||||
@ -2932,8 +2918,8 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
if (SMin.compare(RHS) == APFloat::cmpGreaterThan) { // smin > 12312.0
|
||||
if (Pred == ICmpInst::ICMP_NE || Pred == ICmpInst::ICMP_SGT ||
|
||||
Pred == ICmpInst::ICMP_SGE)
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getTrue(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getFalse(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
return ReplaceInstUsesWith(I, Builder->getFalse());
|
||||
}
|
||||
} else {
|
||||
// See if the RHS value is < UnsignedMin.
|
||||
@ -2943,8 +2929,8 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
if (SMin.compare(RHS) == APFloat::cmpGreaterThan) { // umin > 12312.0
|
||||
if (Pred == ICmpInst::ICMP_NE || Pred == ICmpInst::ICMP_UGT ||
|
||||
Pred == ICmpInst::ICMP_UGE)
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getTrue(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getFalse(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
return ReplaceInstUsesWith(I, Builder->getFalse());
|
||||
}
|
||||
}
|
||||
|
||||
@ -2966,14 +2952,14 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
switch (Pred) {
|
||||
default: llvm_unreachable("Unexpected integer comparison!");
|
||||
case ICmpInst::ICMP_NE: // (float)int != 4.4 --> true
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getTrue(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
case ICmpInst::ICMP_EQ: // (float)int == 4.4 --> false
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getFalse(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getFalse());
|
||||
case ICmpInst::ICMP_ULE:
|
||||
// (float)int <= 4.4 --> int <= 4
|
||||
// (float)int <= -4.4 --> false
|
||||
if (RHS.isNegative())
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getFalse(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getFalse());
|
||||
break;
|
||||
case ICmpInst::ICMP_SLE:
|
||||
// (float)int <= 4.4 --> int <= 4
|
||||
@ -2985,7 +2971,7 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
// (float)int < -4.4 --> false
|
||||
// (float)int < 4.4 --> int <= 4
|
||||
if (RHS.isNegative())
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getFalse(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getFalse());
|
||||
Pred = ICmpInst::ICMP_ULE;
|
||||
break;
|
||||
case ICmpInst::ICMP_SLT:
|
||||
@ -2998,7 +2984,7 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
// (float)int > 4.4 --> int > 4
|
||||
// (float)int > -4.4 --> true
|
||||
if (RHS.isNegative())
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getTrue(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
break;
|
||||
case ICmpInst::ICMP_SGT:
|
||||
// (float)int > 4.4 --> int > 4
|
||||
@ -3010,7 +2996,7 @@ Instruction *InstCombiner::FoldFCmp_IntToFP_Cst(FCmpInst &I,
|
||||
// (float)int >= -4.4 --> true
|
||||
// (float)int >= 4.4 --> int > 4
|
||||
if (RHS.isNegative())
|
||||
return ReplaceInstUsesWith(I, ConstantInt::getTrue(I.getContext()));
|
||||
return ReplaceInstUsesWith(I, Builder->getTrue());
|
||||
Pred = ICmpInst::ICMP_UGT;
|
||||
break;
|
||||
case ICmpInst::ICMP_SGE:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user