Treat TargetGlobalAddress as a constant for the purpose of matching pre-inc stores on PPC.

Thanks to Tobias von Koch for pointing out this problem.

llvm-svn: 158932

1 files changed, 6 insertions, 1 deletions

diff --git a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
index b53deda479f..a00f686adce 100644
--- a/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelDAGToDAG.cpp
@@ -111,7 +111,8 @@ namespace {
     /// immediate field.  Because preinc imms have already been validated, just
     /// accept it.
     bool SelectAddrImmOffs(SDValue N, SDValue &Out) const {
-      if (isa<ConstantSDNode>(N)) {
+      if (isa<ConstantSDNode>(N) || N.getOpcode() == PPCISD::Lo ||
+          N.getOpcode() == ISD::TargetGlobalAddress) {
         Out = N;
         return true;
       }
@@ -123,6 +124,10 @@ namespace {
     /// index field.  Because preinc imms have already been validated, just
     /// accept it.
     bool SelectAddrIdxOffs(SDValue N, SDValue &Out) const {
+      if (isa<ConstantSDNode>(N) || N.getOpcode() == PPCISD::Lo ||
+          N.getOpcode() == ISD::TargetGlobalAddress)
+        return false;
+
       Out = N;
       return true;
     }