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[Bug middle-end/48377] [4.6/4.7 regression] miscompilation at -O3
- From: "irar at il dot ibm.com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 7 Apr 2011 09:56:06 +0000
- Subject: [Bug middle-end/48377] [4.6/4.7 regression] miscompilation at -O3
- Auto-submitted: auto-generated
- References: <bug-48377-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48377
--- Comment #19 from Ira Rosen <irar at il dot ibm.com> 2011-04-07 09:55:44 UTC ---
(In reply to comment #18)
> I think rather tree-vect-data-refs.c:vector_alignment_reachable_p should
> be adjusted. These "packed" checks in the target hooks don't make any
> sense to me either.
Yes, I think this can be moved to vector_alignment_reachable_p.
> In fact, I fail to see the point of a target hook
> completely (if it isn't maybe just for cost issues).
There are some target specific checks in rs6000.c and arm.c.