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simplify this code a bunch.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83294 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2009-10-05 05:06:24 +00:00
parent 375c032468
commit d0806a1519
1 changed files with 14 additions and 14 deletions
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28
lib/Analysis/ConstantFolding.cpp
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@ -721,9 +721,9 @@ static Constant *ConstantFoldFP(double (*NativeFP)(double), double V,
return 0;
}
if (Ty == Type::getFloatTy(Context))
if (Ty->isFloatTy())
return ConstantFP::get(Context, APFloat((float)V));
if (Ty == Type::getDoubleTy(Context))
if (Ty->isDoubleTy())
return ConstantFP::get(Context, APFloat(V));
llvm_unreachable("Can only constant fold float/double");
return 0; // dummy return to suppress warning
@ -740,9 +740,9 @@ static Constant *ConstantFoldBinaryFP(double (*NativeFP)(double, double),
return 0;
}
if (Ty == Type::getFloatTy(Context))
if (Ty->isFloatTy())
return ConstantFP::get(Context, APFloat((float)V));
if (Ty == Type::getDoubleTy(Context))
if (Ty->isDoubleTy())
return ConstantFP::get(Context, APFloat(V));
llvm_unreachable("Can only constant fold float/double");
return 0; // dummy return to suppress warning
@ -756,19 +756,17 @@ llvm::ConstantFoldCall(Function *F,
if (!F->hasName()) return 0;
LLVMContext &Context = F->getContext();
StringRef Name = F->getName();
const Type *Ty = F->getReturnType();
if (NumOperands == 1) {
if (ConstantFP *Op = dyn_cast<ConstantFP>(Operands[0])) {
if (Ty != Type::getFloatTy(F->getContext()) &&
Ty != Type::getDoubleTy(Context))
if (!Ty->isFloatTy() && !Ty->isDoubleTy())
return 0;
/// Currently APFloat versions of these functions do not exist, so we use
/// the host native double versions. Float versions are not called
/// directly but for all these it is true (float)(f((double)arg)) ==
/// f(arg). Long double not supported yet.
double V = Ty == Type::getFloatTy(Context) ?
(double)Op->getValueAPF().convertToFloat():
double V = Ty->isFloatTy() ? (double)Op->getValueAPF().convertToFloat() :
Op->getValueAPF().convertToDouble();
switch (Name[0]) {
case 'a':
@ -854,14 +852,16 @@ llvm::ConstantFoldCall(Function *F,
if (NumOperands == 2) {
if (ConstantFP *Op1 = dyn_cast<ConstantFP>(Operands[0])) {
if (Ty!=Type::getFloatTy(F->getContext()) &&
Ty!=Type::getDoubleTy(Context))
if (!Ty->isFloatTy() && !Ty->isDoubleTy())
return 0;
double Op1V = Ty==Type::getFloatTy(F->getContext()) ?
(double)Op1->getValueAPF().convertToFloat():
double Op1V = Ty->isFloatTy() ?
(double)Op1->getValueAPF().convertToFloat() :
Op1->getValueAPF().convertToDouble();
if (ConstantFP *Op2 = dyn_cast<ConstantFP>(Operands[1])) {
double Op2V = Ty==Type::getFloatTy(F->getContext()) ?
if (Op2->getType() != Op1->getType())
return 0;
double Op2V = Ty->isFloatTy() ?
(double)Op2->getValueAPF().convertToFloat():
Op2->getValueAPF().convertToDouble();