Fix PPC ISD::Declare isel and eliminate the need for PPCTargetLowering::LowerGlobalAddress to check if isVerifiedDebugInfoDesc() is true. Given the recent changes, it would falsely return true for a lot of GlobalAddressSDNode's.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@62373 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 20 insertions, 0 deletions

diff --git a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index 0259a72801..276abe77bf 100644
--- a/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -1100,6 +1100,26 @@ SDNode *PPCDAGToDAGISel::Select(SDValue Op) {
                                             Chain), 0);
     return CurDAG->SelectNodeTo(N, PPC::BCTR, MVT::Other, Chain);
   }
+  case ISD::DECLARE: {
+    SDValue Chain = N->getOperand(0);
+    SDValue N1 = N->getOperand(1);
+    SDValue N2 = N->getOperand(2);
+    FrameIndexSDNode *FINode = dyn_cast<FrameIndexSDNode>(N1);
+    if (!FINode)
+      break;
+    if (N2.getOpcode() == ISD::ADD &&
+        N2.getOperand(0).getOpcode() == PPCISD::Hi &&
+        N2.getOperand(1).getOpcode() == PPCISD::Lo)
+      N2 = N2.getOperand(0).getOperand(0);
+    if (!isa<GlobalAddressSDNode>(N2))
+      break;
+    int FI = cast<FrameIndexSDNode>(N1)->getIndex();
+    GlobalValue *GV = cast<GlobalAddressSDNode>(N2)->getGlobal();
+    SDValue Tmp1 = CurDAG->getTargetFrameIndex(FI, TLI.getPointerTy());
+    SDValue Tmp2 = CurDAG->getTargetGlobalAddress(GV, TLI.getPointerTy());
+    return CurDAG->SelectNodeTo(N, TargetInstrInfo::DECLARE,
+                                MVT::Other, Tmp1, Tmp2, Chain);
+  }
   }
   
   return SelectCode(Op);