fix PR3538 for PPC
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64383 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 051fa8ce..baef847 100644
--- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -1110,8 +1110,13 @@
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 @@
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());