From: Richard Sandiford <rsandifo@redhat.com>
Date: Wed, 11 Feb 2004 08:06:00 +0000 (+0000)
Subject: emit-rtl.c (mark_label_nuses): Check that a LABEL_REF refers to a label before updati... 
X-Git-Tag: releases/gcc-4.0.0~10193
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7537fc907c7f1137ae49a7012cba15db6e8ddcff;p=thirdparty%2Fgcc.git

emit-rtl.c (mark_label_nuses): Check that a LABEL_REF refers to a label before updating its usage count.

	* emit-rtl.c (mark_label_nuses): Check that a LABEL_REF refers to
	a label before updating its usage count.

From-SVN: r77640
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 135952c12fb7..6a6d6857dbef 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2004-02-11  Richard Sandiford  <rsandifo@redhat.com>
+
+	* emit-rtl.c (mark_label_nuses): Check that a LABEL_REF refers to
+	a label before updating its usage count.
+
 2004-02-10  Matt Kraai  <kraai@alumni.cmu.edu>
 
         * doc/install.texi: Remove extra cd.
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 814e2bb5bcb3..722d697f4c2d 100644
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -3133,7 +3133,7 @@ mark_label_nuses (rtx x)
   const char *fmt;
 
   code = GET_CODE (x);
-  if (code == LABEL_REF)
+  if (code == LABEL_REF && LABEL_P (XEXP (x, 0)))
     LABEL_NUSES (XEXP (x, 0))++;
 
   fmt = GET_RTX_FORMAT (code);