6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-01-20 12:31:40 +00:00
Code Issues Projects Releases Wiki Activity

Constants.cpp: getElementAsAPFloat(): Don't handle constant value via host's float/double, just handle with APInt/APFloat.

Browse Source 
x87 FPU didn't keep SNAN, but demoted to QNAN.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@230013 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
NAKAMURA Takumi 2015-02-20 14:24:49 +00:00
parent defae370b0
commit bb19cd98c6
1 changed files with 5 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
lib/IR/Constants.cpp
View File

@ -2715,18 +2715,15 @@ uint64_t ConstantDataSequential::getElementAsInteger(unsigned Elt) const {
/// type, return the specified element as an APFloat. /// type, return the specified element as an APFloat.
APFloat ConstantDataSequential::getElementAsAPFloat(unsigned Elt) const { APFloat ConstantDataSequential::getElementAsAPFloat(unsigned Elt) const {
const char *EltPtr = getElementPointer(Elt); const char *EltPtr = getElementPointer(Elt);
auto EltVal = *reinterpret_cast<const uint64_t *>(EltPtr);
switch (getElementType()->getTypeID()) { switch (getElementType()->getTypeID()) {
default: default:
llvm_unreachable("Accessor can only be used when element is float/double!"); llvm_unreachable("Accessor can only be used when element is float/double!");
case Type::FloatTyID: { case Type::FloatTyID:
const float *FloatPrt = reinterpret_cast<const float *>(EltPtr); return APFloat(APFloat::IEEEsingle, APInt(32, EltVal));
return APFloat(*const_cast<float *>(FloatPrt)); case Type::DoubleTyID:
} return APFloat(APFloat::IEEEdouble, APInt(64, EltVal));
case Type::DoubleTyID: {
const double *DoublePtr = reinterpret_cast<const double *>(EltPtr);
return APFloat(*const_cast<double *>(DoublePtr));
}
} }
} }