From: Chris Lattner <sabre@nondot.org>
Date: Sat, 14 Jun 2008 00:49:48 +0000 (+0000)
Subject: Fix a case where tailcallelim wouldn't set the changed bit when it made a change.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c5dc660ea0b153904de601eadd40fa4962c8c71c;p=oota-llvm.git

Fix a case where tailcallelim wouldn't set the changed bit when it made a change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52267 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/TailRecursionElimination.cpp b/lib/Transforms/Scalar/TailRecursionElimination.cpp
index 61222f8732f..6fcf55b581a 100644
--- a/lib/Transforms/Scalar/TailRecursionElimination.cpp
+++ b/lib/Transforms/Scalar/TailRecursionElimination.cpp
@@ -185,8 +185,10 @@ bool TailCallElim::runOnFunction(Function &F) {
   if (!FunctionContainsEscapingAllocas)
     for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB)
       for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ++I)
-        if (CallInst *CI = dyn_cast<CallInst>(I))
+        if (CallInst *CI = dyn_cast<CallInst>(I)) {
           CI->setTailCall();
+          MadeChange = true;
+        }
 
   return MadeChange;
 }