Add direct moves to/from VSR and exploit them for FP/INT conversions

[oota-llvm.git] / lib / Target / PowerPC / PPCFastISel.cpp

diff --git a/lib/Target/PowerPC/PPCFastISel.cpp b/lib/Target/PowerPC/PPCFastISel.cpp
index 8d3f308ab963a69c60b0e9e26b6ed24495bd7f26..002616babd4cc28db41daecd61da29112717fa17 100644 (file)
--- a/lib/Target/PowerPC/PPCFastISel.cpp
+++ b/lib/Target/PowerPC/PPCFastISel.cpp
@@ -958,6 +958,8 @@ unsigned PPCFastISel::PPCMoveToFPReg(MVT SrcVT, unsigned SrcReg,
 }
 
 // Attempt to fast-select an integer-to-floating-point conversion.
+// FIXME: Once fast-isel has better support for VSX, conversions using
+//        direct moves should be implemented.
 bool PPCFastISel::SelectIToFP(const Instruction *I, bool IsSigned) {
   MVT DstVT;
   Type *DstTy = I->getType();
@@ -1065,6 +1067,8 @@ unsigned PPCFastISel::PPCMoveToIntReg(const Instruction *I, MVT VT,
 }
 
 // Attempt to fast-select a floating-point-to-integer conversion.
+// FIXME: Once fast-isel has better support for VSX, conversions using
+//        direct moves should be implemented.
 bool PPCFastISel::SelectFPToI(const Instruction *I, bool IsSigned) {
   MVT DstVT, SrcVT;
   Type *DstTy = I->getType();