[asan] correctly use ConstantExpr::getGetElementPtr. Catch by NAKAMURA Takumi

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149172 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
index 3f06815..e8fb4d5 100644
--- a/lib/Transforms/Instrumentation/AddressSanitizer.cpp
+++ b/lib/Transforms/Instrumentation/AddressSanitizer.cpp
@@ -484,7 +484,7 @@
     Indices2[1] = IRB.getInt32(0);
 
     G->replaceAllUsesWith(
-        ConstantExpr::getGetElementPtr(NewGlobal, Indices2, 2));
+        ConstantExpr::getGetElementPtr(NewGlobal, Indices2, true));
     NewGlobal->takeName(G);
     G->eraseFromParent();