https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
Andrew Pinski changed:
What|Removed |Added
Target Milestone|--- |5.5
Known to work|
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
Andrew Pinski changed:
What|Removed |Added
Known to work||6.4.0, 7.1.0, 7.5.0
Known to fail|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
Richard Guenther rguenth at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
--- Comment #5 from Richard Guenther rguenth at gcc dot gnu.org 2011-01-21
14:22:40 UTC ---
Thus, the real reason is that we lack alignment information on
MEM_REFs/TARGET_MEM_REFs but only have pointer alignment information for now.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
--- Comment #6 from H.J. Lu hjl.tools at gmail dot com 2011-01-21 14:45:31
UTC ---
(In reply to comment #5)
Thus, the real reason is that we lack alignment information on
MEM_REFs/TARGET_MEM_REFs but only have pointer alignment information for
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
--- Comment #7 from Richard Guenther rguenth at gcc dot gnu.org 2011-01-21
15:35:29 UTC ---
(In reply to comment #6)
(In reply to comment #5)
Thus, the real reason is that we lack alignment information on
MEM_REFs/TARGET_MEM_REFs but only
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
--- Comment #8 from Richard Guenther rguenth at gcc dot gnu.org 2011-01-21
15:37:33 UTC ---
And before you start fiddling with set_mem_attributes_minus_bitpos, most
alignment related pieces in it should simply re-use get_object_alignment
(a
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
--- Comment #9 from H.J. Lu hjl.tools at gmail dot com 2011-01-21 16:03:41
UTC ---
(In reply to comment #7)
Note that this shouldn't be an issue for AVX/SSE as unaligned moves are
as fast as aligned ones if they are really aligned (at least I
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47397
--- Comment #10 from Richard Guenther rguenth at gcc dot gnu.org 2011-01-21
16:21:55 UTC ---
You can play with a cleanup patch I have lying around, queued for 4.7:
Index: emit-rtl.c
