From: Ilya Enkovich <ilya.enkovich@intel.com>
Date: Tue, 23 Sep 2014 08:26:34 +0000 (+0000)
Subject: cfgcleanup.c (try_optimize_cfg): Do not remove label with LABEL_PRESERVE_P flag set.
X-Git-Tag: releases/gcc-5.1.0~4487
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=6c979aa1bf4cb88c7934cea3453802d5281f7dff;p=thirdparty%2Fgcc.git

cfgcleanup.c (try_optimize_cfg): Do not remove label with LABEL_PRESERVE_P flag set.


gcc/
	* cfgcleanup.c (try_optimize_cfg): Do not remove label
	with LABEL_PRESERVE_P flag set.

From-SVN: r215498
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ca76b1750443..61de16aeff3e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2014-09-23  Ilya Enkovich  <ilya.enkovich@intel.com>
+
+	* cfgcleanup.c (try_optimize_cfg): Do not remove label
+	with LABEL_PRESERVE_P flag set.
+
 2014-09-23  Alexander Ivchenko  <alexander.ivchenko@intel.com>
 	    Maxim Kuznetsov  <maxim.kuznetsov@intel.com>
 	    Anna Tikhonova  <anna.tikhonova@intel.com>
diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c
index a00816887535..9325ea07708a 100644
--- a/gcc/cfgcleanup.c
+++ b/gcc/cfgcleanup.c
@@ -2701,6 +2701,7 @@ try_optimize_cfg (int mode)
 		  && (single_pred_edge (b)->flags & EDGE_FALLTHRU)
 		  && !(single_pred_edge (b)->flags & EDGE_COMPLEX)
 		  && LABEL_P (BB_HEAD (b))
+		  && !LABEL_PRESERVE_P (BB_HEAD (b))
 		  /* If the previous block ends with a branch to this
 		     block, we can't delete the label.  Normally this
 		     is a condjump that is yet to be simplified, but