From: Jakub Jelinek <jakub@redhat.com>
Date: Thu, 23 May 2002 08:18:42 +0000 (+0200)
Subject: re PR c/6643 (gcc fails in tree check for assignment to variable sized array)
X-Git-Tag: releases/gcc-3.1.1~296
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=33cc911592bea56e79b68e762414aba89407a2f4;p=thirdparty%2Fgcc.git

re PR c/6643 (gcc fails in tree check for assignment to variable sized array)

	PR c/6643
	* emit-rtl.c (widen_memory_access): Only call compare_tree_int
	if DECL_SIZE_UNIT is INTEGER_CST.

From-SVN: r53780
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 65a5ed22b00c..009d69fb6c50 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2002-05-23  Jakub Jelinek  <jakub@redhat.com>
+
+	PR c/6643
+	* emit-rtl.c (widen_memory_access): Only call compare_tree_int
+	if DECL_SIZE_UNIT is INTEGER_CST.
+
 2002-05-23  Jakub Jelinek  <jakub@redhat.com>
 
 	* combine.c (force_to_mode): Use gen_int_mode.
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c
index 3b1ebdb1f456..ab93ef3f324b 100644
--- a/gcc/emit-rtl.c
+++ b/gcc/emit-rtl.c
@@ -2169,6 +2169,7 @@ widen_memory_access (memref, mode, offset)
       /* Similarly for the decl.  */
       else if (DECL_P (expr)
 	       && DECL_SIZE_UNIT (expr)
+	       && TREE_CODE (DECL_SIZE_UNIT (expr)) == INTEGER_CST
 	       && compare_tree_int (DECL_SIZE_UNIT (expr), size) >= 0
 	       && (! memoffset || INTVAL (memoffset) >= 0))
 	break;