From: simonb <simonb@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Sat, 26 Apr 2008 16:59:38 +0000 (+0000)
Subject:        PR c/35652
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=7e3b64b4fe86e3bdceb004b797f6da883402a2ef;p=thirdparty%2Fgcc.git

   PR c/35652
       * builtins.c (c_strlen): Suppressed multiple warnings that can occur
       with propagated string constants.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@134714 138bc75d-0d04-0410-961f-82ee72b054a4
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 843a2e232df4..6453c5033550 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-04-26  Simon Baldwin <simonb@google.com>
+
+	PR c/35652
+	* builtins.c (c_strlen): Suppressed multiple warnings that can occur
+	with propagated string constants.
+
 2008-04-26  Uros Bizjak  <ubizjak@gmail.com>
 
 	* config/i386/i386.md (fix_trunc<mode>_i387_fisttp_with_temp): Use 'X'
diff --git a/gcc/builtins.c b/gcc/builtins.c
index 765294b1be33..321032dace02 100644
--- a/gcc/builtins.c
+++ b/gcc/builtins.c
@@ -447,7 +447,12 @@ c_strlen (tree src, int only_value)
      runtime.  */
   if (offset < 0 || offset > max)
     {
-      warning (0, "offset outside bounds of constant string");
+     /* Suppress multiple warnings for propagated constant strings.  */
+      if (! TREE_NO_WARNING (src))
+        {
+          warning (0, "offset outside bounds of constant string");
+          TREE_NO_WARNING (src) = 1;
+        }
       return NULL_TREE;
     }