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[Bug middle-end/50716] Segmentation fault caused by misaligned vector access
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 14 Oct 2011 09:30:37 +0000
- Subject: [Bug middle-end/50716] Segmentation fault caused by misaligned vector access
- Auto-submitted: auto-generated
- References: <bug-50716-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50716
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-10-14
CC|richard.guenther at gmail |rguenth at gcc dot gnu.org
|dot com |
Ever Confirmed|0 |1
--- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2011-10-14 09:30:37 UTC ---
In this case the compiler knows that p is aligned to 8, misaligned 1, so
it has all the information to ensure to use an unaligned vector move.
So I belive it should use that information.
Somebody needs to step through RTL expansion and see where we ignore
the information.