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Fix X86's unfoldMemoryOperand to properly handle MachineMemOperands.

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llvm-svn: 82597
This commit is contained in:
Dan Gohman 2009-09-23 01:29:41 +00:00
parent 1f53a128a9
commit e7e623cd25
1 changed files with 5 additions and 1 deletions
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6
lib/Target/X86/X86InstrInfo.cpp
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@ -2567,7 +2567,7 @@ X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
std::vector<SDValue> AfterOps;
DebugLoc dl = N->getDebugLoc();
unsigned NumOps = N->getNumOperands();
for (unsigned i = 0; i != NumOps-1; ++i) {
for (unsigned i = 0; i != NumOps-2; ++i) {
SDValue Op = N->getOperand(i);
if (i >= Index-NumDefs && i < Index-NumDefs + X86AddrNumOperands)
AddrOps.push_back(Op);
@ -2576,6 +2576,8 @@ X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
else if (i > Index-NumDefs)
AfterOps.push_back(Op);
}
SDValue MemOp = N->getOperand(NumOps-2);
AddrOps.push_back(MemOp);
SDValue Chain = N->getOperand(NumOps-1);
AddrOps.push_back(Chain);
@ -2612,8 +2614,10 @@ X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
// Emit the store instruction.
if (FoldedStore) {
AddrOps.pop_back();
AddrOps.pop_back();
AddrOps.push_back(SDValue(NewNode, 0));
AddrOps.push_back(MemOp);
AddrOps.push_back(Chain);
bool isAligned = (RI.getStackAlignment() >= 16) ||
RI.needsStackRealignment(MF);