[llvm-commits] [llvm] r154113 - /llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

[Owen Anderson]

Author: resistor
Date: Thu Apr  5 13:50:32 2012
New Revision: 154113

URL: http://llvm.org/viewvc/llvm-project?rev=154113&view=rev
Log:
Treat f16 the same as f80/f128 for the purposes of generating constants during instruction selection.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp?rev=154113&r1=154112&r2=154113&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAG.cpp Thu Apr  5 13:50:32 2012
@@ -62,6 +62,7 @@
 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 @@
     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,