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Added a FIXME comment about why FST is currently flagged to fpGETRESULT. 

llvm-svn: 25381
This commit is contained in:
Evan Cheng 2006-01-17 00:37:42 +00:00
parent a1bb8dbbc3
commit 561881f30a
1 changed files with 6 additions and 0 deletions
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6
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -555,6 +555,9 @@ X86TargetLowering::LowerCCCCallTo(SDOperand Chain, const Type *RetTy,
Chain = RetVal.getValue(1); Chain = RetVal.getValue(1);
InFlag = RetVal.getValue(2); InFlag = RetVal.getValue(2);
if (X86ScalarSSE) { if (X86ScalarSSE) {
// FIXME:Currently the FST is flagged to the FP_GET_RESULT. This
// shouldn't be necessary except for RFP cannot be live across
// multiple blocks. When stackifier is fixed, they can be uncoupled.
unsigned Size = MVT::getSizeInBits(MVT::f64)/8; unsigned Size = MVT::getSizeInBits(MVT::f64)/8;
MachineFunction &MF = DAG.getMachineFunction(); MachineFunction &MF = DAG.getMachineFunction();
int SSFI = MF.getFrameInfo()->CreateStackObject(Size, Size); int SSFI = MF.getFrameInfo()->CreateStackObject(Size, Size);
@ -1072,6 +1075,9 @@ X86TargetLowering::LowerFastCCCallTo(SDOperand Chain, const Type *RetTy,
Chain = RetVal.getValue(1); Chain = RetVal.getValue(1);
InFlag = RetVal.getValue(2); InFlag = RetVal.getValue(2);
if (X86ScalarSSE) { if (X86ScalarSSE) {
// FIXME:Currently the FST is flagged to the FP_GET_RESULT. This
// shouldn't be necessary except for RFP cannot be live across
// multiple blocks. When stackifier is fixed, they can be uncoupled.
unsigned Size = MVT::getSizeInBits(MVT::f64)/8; unsigned Size = MVT::getSizeInBits(MVT::f64)/8;
MachineFunction &MF = DAG.getMachineFunction(); MachineFunction &MF = DAG.getMachineFunction();
int SSFI = MF.getFrameInfo()->CreateStackObject(Size, Size); int SSFI = MF.getFrameInfo()->CreateStackObject(Size, Size);