From a88cd4ea2a205346302760b5f0c8b815a1c20c16 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 14 Jun 2008 00:49:48 +0000
Subject: Fix a case where tailcallelim wouldn't set the changed bit when it
 made a change.

llvm-svn: 52267
---
 llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'llvm/lib')

diff --git a/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp b/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
index 61222f8732f..6fcf55b581a 100644
--- a/llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp
+++ b/llvm/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;
 }
-- 
cgit v1.2.3