# HG changeset patch
# User Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
# Date 1392052186 -32400
# Node ID 35ab9e3560beb6f759d5fde8697617e31ce38904
# Parent  0aa33659e8e4b9f38b51d8f85a4bf2877a70bcb1
remove null pointer access bug which occured if the callee codesegment is accessed by pointer on LowerCallTo().

diff -r 0aa33659e8e4 -r 35ab9e3560be lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
--- a/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp	Mon Feb 03 18:02:13 2014 +0900
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp	Tue Feb 11 02:09:46 2014 +0900
@@ -5460,8 +5460,14 @@
          "Null value expected with tail call!");
 #ifndef noCbC
   // if code segment's tail call flag was changed false , we report it on error.
-  if (CLI.RetTy->is__CodeTy() && CS.getCaller()->getReturnType()->is__CodeTy() && !isTailCall)
-    DAG.getContext()->emitError(CS.getInstruction(),CS.getCalledFunction()->getName() + " : Tail call elimination was failed!");
+  if (CLI.RetTy->is__CodeTy() && CS.getCaller()->getReturnType()->is__CodeTy() && !isTailCall) {