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Move a bit more functionality to LLVMContext, which apparently wasn't being used anyways. 

llvm-svn: 75546
This commit is contained in:
Owen Anderson 2009-07-13 23:16:26 +00:00
parent 56523ceba1
commit 13c240a4c1
4 changed files with 34 additions and 25 deletions
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6
llvm/include/llvm/Constants.h
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@ -256,12 +256,6 @@ public:
/// get() - Static factory methods - Return objects of the specified value
static ConstantFP *get(const APFloat &V);
/// get() - This returns a ConstantFP, or a vector containing a splat of a
/// ConstantFP, for the specified value in the specified type. This should
/// only be used for simple constant values like 2.0/1.0 etc, that are
/// known-valid both as host double and as the target format.
static Constant *get(const Type *Ty, double V);
/// isValueValidForType - return true if Ty is big enough to represent V.
static bool isValueValidForType(const Type *Ty, const APFloat& V);
inline const APFloat& getValueAPF() const { return Val; }

5
llvm/include/llvm/LLVMContext.h
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@ -183,6 +183,11 @@ public:
// ConstantFP accessors
ConstantFP* getConstantFP(const APFloat& V);
/// get() - This returns a ConstantFP, or a vector containing a splat of a
/// ConstantFP, for the specified value in the specified type. This should
/// only be used for simple constant values like 2.0/1.0 etc, that are
/// known-valid both as host double and as the target format.
Constant* getConstantFP(const Type* Ty, double V);
ConstantFP* getConstantFPNegativeZero(const Type* Ty);

18
llvm/lib/VMCore/Constants.cpp
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@ -382,24 +382,6 @@ ConstantFP *ConstantFP::get(const APFloat &V) {
return Slot;
}
/// get() - This returns a constant fp for the specified value in the
/// specified type. This should only be used for simple constant values like
/// 2.0/1.0 etc, that are known-valid both as double and as the target format.
Constant *ConstantFP::get(const Type *Ty, double V) {
APFloat FV(V);
bool ignored;
FV.convert(*TypeToFloatSemantics(Ty->getScalarType()),
APFloat::rmNearestTiesToEven, &ignored);
Constant *C = get(FV);
// For vectors, broadcast the value.
if (const VectorType *VTy = dyn_cast<VectorType>(Ty))
return
ConstantVector::get(std::vector<Constant *>(VTy->getNumElements(), C));
return C;
}
//===----------------------------------------------------------------------===//
// ConstantXXX Classes
//===----------------------------------------------------------------------===//

30
llvm/lib/VMCore/LLVMContext.cpp
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@ -442,8 +442,36 @@ ConstantFP* LLVMContext::getConstantFP(const APFloat& V) {
return ConstantFP::get(V);
}
static const fltSemantics *TypeToFloatSemantics(const Type *Ty) {
if (Ty == Type::FloatTy)
return &APFloat::IEEEsingle;
if (Ty == Type::DoubleTy)
return &APFloat::IEEEdouble;
if (Ty == Type::X86_FP80Ty)
return &APFloat::x87DoubleExtended;
else if (Ty == Type::FP128Ty)
return &APFloat::IEEEquad;
assert(Ty == Type::PPC_FP128Ty && "Unknown FP format");
return &APFloat::PPCDoubleDouble;
}
/// get() - This returns a constant fp for the specified value in the
/// specified type. This should only be used for simple constant values like
/// 2.0/1.0 etc, that are known-valid both as double and as the target format.
Constant* LLVMContext::getConstantFP(const Type* Ty, double V) {
return ConstantFP::get(Ty, V);
APFloat FV(V);
bool ignored;
FV.convert(*TypeToFloatSemantics(Ty->getScalarType()),
APFloat::rmNearestTiesToEven, &ignored);
Constant *C = getConstantFP(FV);
// For vectors, broadcast the value.
if (const VectorType *VTy = dyn_cast<VectorType>(Ty))
return
getConstantVector(std::vector<Constant *>(VTy->getNumElements(), C));
return C;
}
ConstantFP* LLVMContext::getConstantFPNegativeZero(const Type* Ty) {