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fix PR3538 for PPC 

llvm-svn: 64383
This commit is contained in:
Chris Lattner 2009-02-12 17:37:15 +00:00
parent aed3a4215b
commit 4d4c702d5f
1 changed files with 14 additions and 4 deletions
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18
llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
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@ -1110,8 +1110,13 @@ SDNode *PPCDAGToDAGISel::Select(SDValue Op) {
SDValue N1 = N->getOperand(1);
SDValue N2 = N->getOperand(2);
FrameIndexSDNode *FINode = dyn_cast<FrameIndexSDNode>(N1);
if (!FINode)
break;
// FIXME: We need to handle this for VLAs.
if (!FINode) {
ReplaceUses(Op.getValue(0), Chain);
return NULL;
}
if (N2.getOpcode() == ISD::ADD) {
if (N2.getOperand(0).getOpcode() == ISD::ADD &&
N2.getOperand(0).getOperand(0).getOpcode() == PPCISD::GlobalBaseReg &&
@ -1127,8 +1132,13 @@ SDNode *PPCDAGToDAGISel::Select(SDValue Op) {
N2.getOperand(1).getOpcode() == PPCISD::Lo)
N2 = N2.getOperand(0).getOperand(0);
}
if (!isa<GlobalAddressSDNode>(N2))
break;
// If we don't have a global address here, the debug info is mangled, just
// drop it.
if (!isa<GlobalAddressSDNode>(N2)) {
ReplaceUses(Op.getValue(0), Chain);
return NULL;
}
int FI = cast<FrameIndexSDNode>(N1)->getIndex();
GlobalValue *GV = cast<GlobalAddressSDNode>(N2)->getGlobal();
SDValue Tmp1 = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());