Fix bug

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6184 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/VMCore/ConstantFold.cpp b/lib/VMCore/ConstantFold.cpp
index ee5611ea7deb8ba7762e2dfd1bdfd7fba0ebcc6f..db8cc4487c166b2b3718e22cdf1d51574eb366c3 100644 (file)
--- a/lib/VMCore/ConstantFold.cpp
+++ b/lib/VMCore/ConstantFold.cpp
@@ -157,7 +157,8 @@ Constant *ConstantFoldGetElementPtr(const Constant *C,
   // To: int* getelementptr ([3 x int]* %X, long 0, long 0)
   //
   if (const ConstantExpr *CE = dyn_cast<ConstantExpr>(C))
-    if (CE->getOpcode() == Instruction::Cast && IdxList.size() > 1)
+    if (CE->getOpcode() == Instruction::Cast && IdxList.size() > 1 &&
+        IdxList[0]->isNullValue())
       if (const PointerType *SPT = 
           dyn_cast<PointerType>(CE->getOperand(0)->getType()))
         if (const ArrayType *SAT = dyn_cast<ArrayType>(SPT->getElementType()))