https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
--- Comment #12 from Richard Biener ---
Author: rguenth
Date: Thu Jun 22 11:46:45 2017
New Revision: 249552
URL: https://gcc.gnu.org/viewcvs?rev=249552&root=gcc&view=rev
Log:
2017-06-22 Richard Biener
Backport from mainline
2
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
Richard Biener changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
Resolution|---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
Richard Biener changed:
What|Removed |Added
Known to work||7.0
--- Comment #10 from Richard Biener
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
--- Comment #9 from Richard Biener ---
Author: rguenth
Date: Mon Apr 18 13:09:53 2016
New Revision: 235147
URL: https://gcc.gnu.org/viewcvs?rev=235147&root=gcc&view=rev
Log:
2016-04-18 Richard Biener
PR tree-optimization/43434
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
--- Comment #8 from Richard Biener ---
Now that strided SLP is implemented we run into
t.c:10:3: note: versioning for alias required: can't determine dependence
between *s1_82 and MEM[(DCTELEM *)block_81 clique 1 base 1]
t.c:10:3: note: mark for
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
Richard Biener changed:
What|Removed |Added
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed|
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
Richard Guenther changed:
What|Removed |Added
Blocks||53947
--- Comment #6 from Richard Guen
--- Comment #5 from matz at gcc dot gnu dot org 2010-09-07 13:42 ---
Since Ira implemented unaligned support in SLP mode we get somewhat further,
but not much. If complete unrolling is active that we can't disambiguate
between *s and *(s+stride). That is correct because stride is unkno
--- Comment #4 from rguenth at gcc dot gnu dot org 2010-03-19 12:53 ---
(In reply to comment #2)
> Oh it might also need the patch for PR 29751 which I hope to submit for 4.6.
> Note the patch in there still works and has been tested as of earlier this
> week.
New mem-ref will make tha
--- Comment #3 from pinskia at gcc dot gnu dot org 2010-03-18 21:50 ---
Actually I am wrong but there is something else going on here.
failed: evolution of base is not affine.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
--- Comment #2 from pinskia at gcc dot gnu dot org 2010-03-18 21:44 ---
Oh it might also need the patch for PR 29751 which I hope to submit for 4.6.
Note the patch in there still works and has been tested as of earlier this
week.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
--- Comment #1 from pinskia at gcc dot gnu dot org 2010-03-18 21:43 ---
Hint here, character types can alias any other type. Also I think s1 and s2
need to be marked as restrict to get the aliasing correct.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43434
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