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Treat f16 the same as f80/f128 for the purposes of generating constants during instruction selection. 

llvm-svn: 154113
This commit is contained in:
Owen Anderson 2012-04-05 18:50:32 +00:00
parent 889a3009a4
commit a6eebf6013
1 changed files with 2 additions and 1 deletions
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3
llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
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@ -62,6 +62,7 @@ static SDVTList makeVTList(const EVT *VTs, unsigned NumVTs) {
static const fltSemantics *EVTToAPFloatSemantics(EVT VT) {
switch (VT.getSimpleVT().SimpleTy) {
default: llvm_unreachable("Unknown FP format");
case MVT::f16: return &APFloat::IEEEhalf;
case MVT::f32: return &APFloat::IEEEsingle;
case MVT::f64: return &APFloat::IEEEdouble;
case MVT::f80: return &APFloat::x87DoubleExtended;
@ -1042,7 +1043,7 @@ SDValue SelectionDAG::getConstantFP(double Val, EVT VT, bool isTarget) {
return getConstantFP(APFloat((float)Val), VT, isTarget);
else if (EltVT==MVT::f64)
return getConstantFP(APFloat(Val), VT, isTarget);
else if (EltVT==MVT::f80 || EltVT==MVT::f128) {
else if (EltVT==MVT::f80 || EltVT==MVT::f128 || EltVT==MVT::f16) {
bool ignored;
APFloat apf = APFloat(Val);
apf.convert(*EVTToAPFloatSemantics(EltVT), APFloat::rmNearestTiesToEven,