As Chris pointed out, this doesn't actually need an LLVMContext to operate.

llvm-svn: 75508
diff --git a/llvm/lib/Target/Mips/MipsISelLowering.cpp b/llvm/lib/Target/Mips/MipsISelLowering.cpp
index 3727918..f3fa179 100644
--- a/llvm/lib/Target/Mips/MipsISelLowering.cpp
+++ b/llvm/lib/Target/Mips/MipsISelLowering.cpp
@@ -227,7 +227,7 @@
   if (GVA->hasInitializer() && GV->hasLocalLinkage()) {
     Constant *C = GVA->getInitializer();
     const ConstantArray *CVA = dyn_cast<ConstantArray>(C);
-    if (CVA && CVA->isCString(GV->getParent()->getContext())) 
+    if (CVA && CVA->isCString()) 
       return false;
   }