Move ConstantExpr to 2.5 API.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77494 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/ShadowStackGC.cpp b/lib/CodeGen/ShadowStackGC.cpp
index 801a99b..08d6720 100644
--- a/lib/CodeGen/ShadowStackGC.cpp
+++ b/lib/CodeGen/ShadowStackGC.cpp
@@ -238,7 +238,7 @@
 
   Constant *GEPIndices[2] = { ConstantInt::get(Type::Int32Ty, 0),
                               ConstantInt::get(Type::Int32Ty, 0) };
-  return Context.getConstantExprGetElementPtr(GV, GEPIndices, 2);
+  return ConstantExpr::getGetElementPtr(GV, GEPIndices, 2);
 }
 
 const Type* ShadowStackGC::GetConcreteStackEntryType(Function &F) {