getParent() ^ 3 == getModule() ; NFCI

llvm-svn: 255511
diff --git a/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp b/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
index 79f7248..f847db3 100644
--- a/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
+++ b/llvm/lib/Transforms/Scalar/RewriteStatepointsForGC.cpp
@@ -1917,7 +1917,7 @@
     // No values to hold live, might as well not insert the empty holder
     return;
 
-  Module *M = CS.getInstruction()->getParent()->getParent()->getParent();
+  Module *M = CS.getInstruction()->getModule();
   // Use a dummy vararg function to actually hold the values live
   Function *Func = cast<Function>(M->getOrInsertFunction(
       "__tmp_use", FunctionType::get(Type::getVoidTy(M->getContext()), true)));