From: kraai <kraai@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue, 11 Sep 2001 17:10:15 +0000 (+0000)
Subject: 	* builtins.c (c_strlen): Treat an offset too large for a
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=dabc40842c44313856b834fbe33dcca519c47a52;p=thirdparty%2Fgcc.git

	* builtins.c (c_strlen): Treat an offset too large for a
	HOST_WIDE_INT as out of range.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@45550 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 74f3fe36b594..25bf3ba5d569 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2001-10-11  Matt Kraai  <kraai@alumni.carnegiemellon.edu>
+
+	* builtins.c (c_strlen): Treat an offset too large for a
+	HOST_WIDE_INT as out of range.
+
 Tue Sep 11 18:57:47 CEST 2001  Jan Hubicka  <jh@suse.cz>
 
 	* basic-block.h (EDGE_CRITICAL): Remove; renumber other flags.
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 7cd7e899113d..025dd2c5902e 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -265,8 +265,10 @@ c_strlen (src)
 
   /* We have a known offset into the string.  Start searching there for
      a null character if we can represent it as a single HOST_WIDE_INT.  */
-  if (offset_node == 0 || ! host_integerp (offset_node, 0))
+  if (offset_node == 0)
     offset = 0;
+  else if (! host_integerp (offset_node, 0))
+    offset = -1;
   else
     offset = tree_low_cst (offset_node, 0);