[src/trunk]: src/external/gpl3/gcc/dist/gcc Make can_trust_pointer_alignment(...

[martin <martin%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/dfa7c26d54ab
branches:  trunk
changeset: 781379:dfa7c26d54ab
user:      martin <martin%NetBSD.org@localhost>
date:      Sun Sep 02 20:58:44 2012 +0000

description:
Make can_trust_pointer_alignment() always return false on STRICT_ALIGNMENT
archs - gcc 4.5 is not able to properly track alignment and backporting
the fix from 4.6/4.7 is not feasible (according to upstream).
See http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46483 for details.
Fixes PR toolchain/46865.

diffstat:

 external/gpl3/gcc/dist/gcc/builtins.c |  2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diffs (12 lines):

diff -r 9ad83d003537 -r dfa7c26d54ab external/gpl3/gcc/dist/gcc/builtins.c
--- a/external/gpl3/gcc/dist/gcc/builtins.c     Sun Sep 02 16:57:06 2012 +0000
+++ b/external/gpl3/gcc/dist/gcc/builtins.c     Sun Sep 02 20:58:44 2012 +0000
@@ -347,7 +347,7 @@
 can_trust_pointer_alignment (void)
 {
   /* We rely on TER to compute accurate alignment information.  */
-  return (optimize && flag_tree_ter);
+  return (!STRICT_ALIGNMENT && optimize && flag_tree_ter);
 }
 
 /* Return the alignment in bits of EXP, a pointer valued expression.