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Implement selection of inline asm memory operands 

llvm-svn: 26348
This commit is contained in:
Chris Lattner 2006-02-24 02:13:12 +00:00
parent ca3341cac6
commit a1ec1ddd59
1 changed files with 29 additions and 0 deletions
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29
llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
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@ -83,6 +83,35 @@ namespace {
/// represented as an indexed [r+r] operation.
bool SelectAddrIdxOnly(SDOperand N, SDOperand &Base, SDOperand &Index);
/// SelectInlineAsmMemoryOperand - Implement addressing mode selection for
/// inline asm expressions.
virtual bool SelectInlineAsmMemoryOperand(const SDOperand &Op,
char ConstraintCode,
std::vector<SDOperand> &OutOps,
SelectionDAG &DAG) {
SDOperand Op0, Op1;
switch (ConstraintCode) {
default: return true;
case 'm': // memory
if (!SelectAddrIdx(Op, Op0, Op1))
SelectAddrImm(Op, Op0, Op1);
break;
case 'o': // offsetable
if (!SelectAddrImm(Op, Op0, Op1)) {
Select(Op0, Op); // r+0.
Op1 = getI32Imm(0);
}
break;
case 'v': // not offsetable
SelectAddrIdxOnly(Op, Op0, Op1);
break;
}
OutOps.push_back(Op0);
OutOps.push_back(Op1);
return false;
}
SDOperand BuildSDIVSequence(SDNode *N);
SDOperand BuildUDIVSequence(SDNode *N);