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isStoreToStackSlot

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25925 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Andrew Lenharth 2006-02-03 03:07:37 +00:00
parent 84e752a812
commit 133d3100ea
3 changed files with 20 additions and 3 deletions

18
lib/Target/Alpha/AlphaInstrInfo.cpp

@ -61,3 +61,21 @@ AlphaInstrInfo::isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const {
return 0;
}
unsigned
AlphaInstrInfo::isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const {
switch (MI->getOpcode()) {
case Alpha::STL:
case Alpha::STQ:
case Alpha::STB:
case Alpha::STW:
case Alpha::STS:
case Alpha::STT:
if (MI->getOperand(1).isFrameIndex()) {
FrameIndex = MI->getOperand(1).getFrameIndex();
return MI->getOperand(0).getReg();
}
break;
}
return 0;
}

1
lib/Target/Alpha/AlphaInstrInfo.h

@ -37,6 +37,7 @@ public:
unsigned &SrcReg, unsigned &DstReg) const;
virtual unsigned isLoadFromStackSlot(MachineInstr *MI, int &FrameIndex) const;
virtual unsigned isStoreToStackSlot(MachineInstr *MI, int &FrameIndex) const;
};
}

4
lib/Target/Alpha/AlphaInstrInfo.td

@ -177,9 +177,7 @@ def CMOVLBSi : OForm4L< 0x11, 0x14, "cmovlbs $RCOND,$RTRUE,$RDEST",
[(set GPRC:$RDEST, (select (xor GPRC:$RCOND, 1), GPRC:$RFALSE, immUExt8:$RTRUE))]>;
//FIXME: fold setcc with select for all cases. clearly I need patterns for inverted conditions
// and constants (which require inverted conditions as legalize puts the constant in the
// wrong field for the instruction definition
//General pattern for cmov
def : Pat<(select GPRC:$which, GPRC:$src1, GPRC:$src2),
(CMOVNE GPRC:$src2, GPRC:$src1, GPRC:$which)>;
def : Pat<(select GPRC:$which, GPRC:$src1, immUExt8:$src2),