From: Chris Lattner <sabre@nondot.org>
Date: Tue, 17 Feb 2004 18:45:06 +0000 (+0000)
Subject: Since tail duplication is currently neutered, we have to help the optimizer to remove... 
X-Git-Url: http://plrg.eecs.uci.edu/git/?p=oota-llvm.git;a=commitdiff_plain;h=3c5df2612cbe7cca40a16d8ac411a94cc409a2da

Since tail duplication is currently neutered, we have to help the optimizer to remove the overhead of __main


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11561 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/runtime/GCCLibraries/crtend/crtend.c b/runtime/GCCLibraries/crtend/crtend.c
index 58f1bf5f9ab..baac8a1b95a 100644
--- a/runtime/GCCLibraries/crtend/crtend.c
+++ b/runtime/GCCLibraries/crtend/crtend.c
@@ -49,8 +49,9 @@ void __main(void) {
       abort();  /* Should be able to install ONE atexit handler! */
 
   /* FIXME: This should sort the list by priority! */
-  for (; R->FP; ++R)
-    R->FP();
+  if (R->FP)
+    for (; R->FP; ++R)
+      R->FP();
 }
 
 static void run_destructors(void) {