# HG changeset patch
# User Kaito Tokumori <e105711@ie.u-ryukyu.ac.jp>
# Date 1392300342 -32400
# Node ID a61c4aaeb4ed1077c8ec814c8bdd71da4c7368b4
# Parent  a37375f10d666f8aec88f9707be847ea0e1ace87
fix tail call bug. enable to set tail call flag to indirect call in TCEoptPass but some codesegments are called by call instruction yet.

diff -r a37375f10d66 -r a61c4aaeb4ed lib/Transforms/Scalar/TailRecursionElimination.cpp
--- a/lib/Transforms/Scalar/TailRecursionElimination.cpp	Wed Feb 12 01:06:33 2014 +0900
+++ b/lib/Transforms/Scalar/TailRecursionElimination.cpp	Thu Feb 13 23:05:42 2014 +0900
@@ -270,8 +270,12 @@
 #ifndef noCbC
 	    if (isOnlyForCbC()){
 	      Function* CalledFunction = CI->getCalledFunction();
-	      if (CalledFunction == NULL || !CalledFunction->getReturnType()->is__CodeTy())
-		continue;
+	      if (CalledFunction == NULL || !CalledFunction->getReturnType()->is__CodeTy()) { // direct call check.
+		FunctionType* PointerAccessedFType = dyn_cast<FunctionType>(CI->getCalledValue()->getType()->getPointerElementType()); // indirect call check.
+		if (PointerAccessedFType == NULL || !PointerAccessedFType->getReturnType()->is__CodeTy()) {
+		  continue;
+		}
+	      }
 	    }
 #endif
             CI->setTailCall();