From: Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>
Date: Sat, 5 Jul 2003 10:23:33 +0000 (+0200)
Subject: cfgloopmanip.c (force_single_succ_latches): Force latch to be different from header.
X-Git-Tag: releases/gcc-3.4.0~5137
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=977129f68d0dd100969506fd888cbdcae9d68c50;p=thirdparty%2Fgcc.git

cfgloopmanip.c (force_single_succ_latches): Force latch to be different from header.

	* cfgloopmanip.c (force_single_succ_latches): Force latch to be
	different from header.

From-SVN: r68965
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 00c5a07e6435..3fb943611c9c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2003-07-05  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
+
+	* cfgloopmanip.c (force_single_succ_latches): Force latch to be
+	different from header.
+
 2003-07-05  Andreas Schwab  <schwab@suse.de>
 
 	* config/m68k/m68k.c: Remove code protected by CRDS.
diff --git a/gcc/cfgloopmanip.c b/gcc/cfgloopmanip.c
index 31ecc6cfe976..6075b4c115d1 100644
--- a/gcc/cfgloopmanip.c
+++ b/gcc/cfgloopmanip.c
@@ -1191,7 +1191,8 @@ force_single_succ_latches (struct loops *loops)
   for (i = 1; i < loops->num; i++)
     {
       loop = loops->parray[i];
-      if (!loop->latch->succ->succ_next)
+      if (loop->latch != loop->header
+	  && !loop->latch->succ->succ_next)
 	continue;
 
       for (e = loop->header->pred; e->src != loop->latch; e = e->pred_next)