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argument lowering should copy from the vreg shadows of live-in arguments 

passed in registers, not directly from the pregs themselves.

llvm-svn: 34838
This commit is contained in:
Chris Lattner 2007-03-02 05:12:29 +00:00
parent fc2f52128a
commit 9c7e5e365d
1 changed files with 7 additions and 7 deletions
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14
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -627,8 +627,8 @@ SDOperand X86TargetLowering::LowerCCCArguments(SDOperand Op, SelectionDAG &DAG,
RC = X86::VR128RegisterClass;
}
SDOperand ArgValue = DAG.getCopyFromReg(Root, VA.getLocReg(), RegVT);
AddLiveIn(DAG.getMachineFunction(), VA.getLocReg(), RC);
unsigned Reg = AddLiveIn(DAG.getMachineFunction(), VA.getLocReg(), RC);
SDOperand ArgValue = DAG.getCopyFromReg(Root, Reg, RegVT);
// If this is an 8 or 16-bit value, it is really passed promoted to 32
// bits. Insert an assert[sz]ext to capture this, then truncate to the
@ -877,8 +877,8 @@ X86TargetLowering::LowerFastCCArguments(SDOperand Op, SelectionDAG &DAG) {
RC = X86::VR128RegisterClass;
}
SDOperand ArgValue = DAG.getCopyFromReg(Root, VA.getLocReg(), RegVT);
AddLiveIn(DAG.getMachineFunction(), VA.getLocReg(), RC);
unsigned Reg = AddLiveIn(DAG.getMachineFunction(), VA.getLocReg(), RC);
SDOperand ArgValue = DAG.getCopyFromReg(Root, Reg, RegVT);
// If this is an 8 or 16-bit value, it is really passed promoted to 32
// bits. Insert an assert[sz]ext to capture this, then truncate to the
@ -1116,9 +1116,9 @@ X86TargetLowering::LowerX86_64CCCArguments(SDOperand Op, SelectionDAG &DAG) {
assert(MVT::isVector(RegVT));
RC = X86::VR128RegisterClass;
}
SDOperand ArgValue = DAG.getCopyFromReg(Root, VA.getLocReg(), RegVT);
AddLiveIn(DAG.getMachineFunction(), VA.getLocReg(), RC);
unsigned Reg = AddLiveIn(DAG.getMachineFunction(), VA.getLocReg(), RC);
SDOperand ArgValue = DAG.getCopyFromReg(Root, Reg, RegVT);
// If this is an 8 or 16-bit value, it is really passed promoted to 32
// bits. Insert an assert[sz]ext to capture this, then truncate to the