//===----------------------------------------------------------------------===//
#include "InstCombine.h"
+#include "llvm/Analysis/ConstantFolding.h"
#include "llvm/Target/TargetData.h"
+#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Support/PatternMatch.h"
using namespace llvm;
using namespace PatternMatch;
} else {
Amt = ConstantInt::get(AI.getArraySize()->getType(), Scale);
// Insert before the alloca, not before the cast.
- Amt = AllocaBuilder.CreateMul(Amt, NumElements, "tmp");
+ Amt = AllocaBuilder.CreateMul(Amt, NumElements);
}
if (uint64_t Offset = (AllocElTySize*ArrayOffset)/CastElTySize) {
Value *Off = ConstantInt::get(AI.getArraySize()->getType(),
Offset, true);
- Amt = AllocaBuilder.CreateAdd(Amt, Off, "tmp");
+ Amt = AllocaBuilder.CreateAdd(Amt, Off);
}
AllocaInst *New = AllocaBuilder.CreateAlloca(CastElTy, Amt);
return ReplaceInstUsesWith(CI, New);
}
-
-
/// EvaluateInDifferentType - Given an expression that
/// CanEvaluateTruncated or CanEvaluateSExtd returns true for, actually
/// insert the code to evaluate the expression.
C = ConstantExpr::getIntegerCast(C, Ty, isSigned /*Sext or ZExt*/);
// If we got a constantexpr back, try to simplify it with TD info.
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C))
- C = ConstantFoldConstantExpression(CE, TD);
+ C = ConstantFoldConstantExpression(CE, TD, TLI);
return C;
}
// Canonicalize trunc x to i1 -> (icmp ne (and x, 1), 0), likewise for vector.
if (DestTy->getScalarSizeInBits() == 1) {
Constant *One = ConstantInt::get(Src->getType(), 1);
- Src = Builder->CreateAnd(Src, One, "tmp");
+ Src = Builder->CreateAnd(Src, One);
Value *Zero = Constant::getNullValue(Src->getType());
return new ICmpInst(ICmpInst::ICMP_NE, Src, Zero);
}
In->getType()->getScalarSizeInBits()-1);
In = Builder->CreateLShr(In, Sh, In->getName()+".lobit");
if (In->getType() != CI.getType())
- In = Builder->CreateIntCast(In, CI.getType(), false/*ZExt*/, "tmp");
+ In = Builder->CreateIntCast(In, CI.getType(), false/*ZExt*/);
if (ICI->getPredicate() == ICmpInst::ICMP_SGT) {
Constant *One = ConstantInt::get(In->getType(), 1);
return ReplaceInstUsesWith(CI, In);
}
-
-
-
+
// zext (X == 0) to i32 --> X^1 iff X has only the low bit set.
// zext (X == 0) to i32 --> (X>>1)^1 iff X has only the 2nd bit set.
// zext (X == 1) to i32 --> X iff X has only the low bit set.
if ((Op1CV != 0) == isNE) { // Toggle the low bit.
Constant *One = ConstantInt::get(In->getType(), 1);
- In = Builder->CreateXor(In, One, "tmp");
+ In = Builder->CreateXor(In, One);
}
if (CI.getType() == In->getType())
AndValue));
}
if (SrcSize > DstSize) {
- Value *Trunc = Builder->CreateTrunc(A, CI.getType(), "tmp");
+ Value *Trunc = Builder->CreateTrunc(A, CI.getType());
APInt AndValue(APInt::getLowBitsSet(DstSize, MidSize));
return BinaryOperator::CreateAnd(Trunc,
ConstantInt::get(Trunc->getType(),
Value *TI0 = TI->getOperand(0);
if (TI0->getType() == CI.getType()) {
Constant *ZC = ConstantExpr::getZExt(C, CI.getType());
- Value *NewAnd = Builder->CreateAnd(TI0, ZC, "tmp");
+ Value *NewAnd = Builder->CreateAnd(TI0, ZC);
return BinaryOperator::CreateXor(NewAnd, ZC);
}
}
Op0->getType()->getScalarSizeInBits()-1);
Value *In = Builder->CreateAShr(Op0, Sh, Op0->getName()+".lobit");
if (In->getType() != CI.getType())
- In = Builder->CreateIntCast(In, CI.getType(), true/*SExt*/, "tmp");
+ In = Builder->CreateIntCast(In, CI.getType(), true/*SExt*/);
if (Pred == ICmpInst::ICMP_SGT)
In = Builder->CreateNot(In, In->getName()+".not");
if (ConstantFP *CFP = dyn_cast<ConstantFP>(V)) {
if (CFP->getType() == Type::getPPC_FP128Ty(V->getContext()))
return V; // No constant folding of this.
+ // See if the value can be truncated to half and then reextended.
+ if (Value *V = FitsInFPType(CFP, APFloat::IEEEhalf))
+ return V;
// See if the value can be truncated to float and then reextended.
if (Value *V = FitsInFPType(CFP, APFloat::IEEEsingle))
return V;
}
// Fold (fptrunc (sqrt (fpext x))) -> (sqrtf x)
- // NOTE: This should be disabled by -fno-builtin-sqrt if we ever support it.
CallInst *Call = dyn_cast<CallInst>(CI.getOperand(0));
- if (Call && Call->getCalledFunction() &&
- Call->getCalledFunction()->getName() == "sqrt" &&
+ if (Call && Call->getCalledFunction() && TLI->has(LibFunc::sqrtf) &&
+ Call->getCalledFunction()->getName() == TLI->getName(LibFunc::sqrt) &&
Call->getNumArgOperands() == 1 &&
Call->hasOneUse()) {
CastInst *Arg = dyn_cast<CastInst>(Call->getArgOperand(0));
if (CI.getOperand(0)->getType()->getScalarSizeInBits() >
TD->getPointerSizeInBits()) {
Value *P = Builder->CreateTrunc(CI.getOperand(0),
- TD->getIntPtrType(CI.getContext()), "tmp");
+ TD->getIntPtrType(CI.getContext()));
return new IntToPtrInst(P, CI.getType());
}
if (CI.getOperand(0)->getType()->getScalarSizeInBits() <
TD->getPointerSizeInBits()) {
Value *P = Builder->CreateZExt(CI.getOperand(0),
- TD->getIntPtrType(CI.getContext()), "tmp");
+ TD->getIntPtrType(CI.getContext()));
return new IntToPtrInst(P, CI.getType());
}
}
// and bitcast the result. This eliminates one bitcast, potentially
// two.
Value *NGEP = cast<GEPOperator>(GEP)->isInBounds() ?
- Builder->CreateInBoundsGEP(OrigBase,
- NewIndices.begin(), NewIndices.end()) :
- Builder->CreateGEP(OrigBase, NewIndices.begin(), NewIndices.end());
+ Builder->CreateInBoundsGEP(OrigBase, NewIndices) :
+ Builder->CreateGEP(OrigBase, NewIndices);
NGEP->takeName(GEP);
if (isa<BitCastInst>(CI))
if (TD) {
if (CI.getType()->getScalarSizeInBits() < TD->getPointerSizeInBits()) {
Value *P = Builder->CreatePtrToInt(CI.getOperand(0),
- TD->getIntPtrType(CI.getContext()),
- "tmp");
+ TD->getIntPtrType(CI.getContext()));
return new TruncInst(P, CI.getType());
}
if (CI.getType()->getScalarSizeInBits() > TD->getPointerSizeInBits()) {
Value *P = Builder->CreatePtrToInt(CI.getOperand(0),
- TD->getIntPtrType(CI.getContext()),
- "tmp");
+ TD->getIntPtrType(CI.getContext()));
return new ZExtInst(P, CI.getType());
}
}
// If we found a path from the src to dest, create the getelementptr now.
if (SrcElTy == DstElTy) {
SmallVector<Value*, 8> Idxs(NumZeros+1, ZeroUInt);
- return GetElementPtrInst::CreateInBounds(Src, Idxs.begin(), Idxs.end());
+ return GetElementPtrInst::CreateInBounds(Src, Idxs);
}
}