fix PR6760, a missing check in heap SRoA.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100936 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 2 insertions, 1 deletions

diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp
index b01220e375..f5f9e5d9bc 100644
--- a/lib/Transforms/IPO/GlobalOpt.cpp
+++ b/lib/Transforms/IPO/GlobalOpt.cpp
@@ -966,7 +966,8 @@ static bool ValueIsOnlyUsedLocallyOrStoredToOneGlobal(const Instruction *V,
       continue; // Otherwise, storing through it, or storing into GV... fine.
     }
     
-    if (isa<GetElementPtrInst>(Inst)) {
+    // Must index into the array and into the struct.
+    if (isa<GetElementPtrInst>(Inst) && Inst->getNumOperands() >= 3) {
       if (!ValueIsOnlyUsedLocallyOrStoredToOneGlobal(Inst, GV, PHIs))
         return false;
       continue;