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* [Bug tree-optimization/67381] New: genmatch does not honor the order of patterns
@ 2015-08-28 11:59 glisse at gcc dot gnu.org
2015-08-28 13:09 ` [Bug tree-optimization/67381] " rguenth at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: glisse at gcc dot gnu.org @ 2015-08-28 11:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67381
Bug ID: 67381
Summary: genmatch does not honor the order of patterns
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: glisse at gcc dot gnu.org
Target Milestone: ---
(simplify
(mult (BUILT_IN_SQRT@1 @0) @1)
@0)
(simplify
(mult (BUILT_IN_SQRT @0) (BUILT_IN_SQRT @1))
(BUILT_IN_SQRT (mult @0 @1)))
We can see in the generated files that it first tests if the second argument is
sqrt before checking if both arguments are the same.
See this thread: https://gcc.gnu.org/ml/gcc-patches/2015-08/msg01780.html
It causes a failure in gcc.dg/builtins-11.c
^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug tree-optimization/67381] genmatch does not honor the order of patterns 2015-08-28 11:59 [Bug tree-optimization/67381] New: genmatch does not honor the order of patterns glisse at gcc dot gnu.org @ 2015-08-28 13:09 ` rguenth at gcc dot gnu.org 2015-08-28 23:10 ` pinskia at gcc dot gnu.org ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu.org @ 2015-08-28 13:09 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67381 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> --- Ah, because it doesn't consider a match to be "same" as a non-match. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/67381] genmatch does not honor the order of patterns 2015-08-28 11:59 [Bug tree-optimization/67381] New: genmatch does not honor the order of patterns glisse at gcc dot gnu.org 2015-08-28 13:09 ` [Bug tree-optimization/67381] " rguenth at gcc dot gnu.org @ 2015-08-28 23:10 ` pinskia at gcc dot gnu.org 2015-08-31 3:22 ` pinskia at gcc dot gnu.org ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu.org @ 2015-08-28 23:10 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67381 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |schwab@linux-m68k.org --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- *** Bug 67389 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/67381] genmatch does not honor the order of patterns 2015-08-28 11:59 [Bug tree-optimization/67381] New: genmatch does not honor the order of patterns glisse at gcc dot gnu.org 2015-08-28 13:09 ` [Bug tree-optimization/67381] " rguenth at gcc dot gnu.org 2015-08-28 23:10 ` pinskia at gcc dot gnu.org @ 2015-08-31 3:22 ` pinskia at gcc dot gnu.org 2015-08-31 8:43 ` rguenth at gcc dot gnu.org ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: pinskia at gcc dot gnu.org @ 2015-08-31 3:22 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67381 Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |hs.naveen2u at gmail dot com --- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> --- *** Bug 67404 has been marked as a duplicate of this bug. *** ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/67381] genmatch does not honor the order of patterns 2015-08-28 11:59 [Bug tree-optimization/67381] New: genmatch does not honor the order of patterns glisse at gcc dot gnu.org ` (2 preceding siblings ...) 2015-08-31 3:22 ` pinskia at gcc dot gnu.org @ 2015-08-31 8:43 ` rguenth at gcc dot gnu.org 2015-08-31 14:00 ` rguenth at gcc dot gnu.org 2015-08-31 14:02 ` rguenth at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu.org @ 2015-08-31 8:43 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67381 --- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> --- The related bug is PR64084 btw. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/67381] genmatch does not honor the order of patterns 2015-08-28 11:59 [Bug tree-optimization/67381] New: genmatch does not honor the order of patterns glisse at gcc dot gnu.org ` (3 preceding siblings ...) 2015-08-31 8:43 ` rguenth at gcc dot gnu.org @ 2015-08-31 14:00 ` rguenth at gcc dot gnu.org 2015-08-31 14:02 ` rguenth at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu.org @ 2015-08-31 14:00 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67381 --- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> --- Author: rguenth Date: Mon Aug 31 14:00:16 2015 New Revision: 227344 URL: https://gcc.gnu.org/viewcvs?rev=227344&root=gcc&view=rev Log: 2015-08-31 Richard Biener <rguenther@suse.de> PR middle-end/67381 * genmatch.c (dt_node::gen_kids): Also treat matches as barrier. Modified: trunk/gcc/ChangeLog trunk/gcc/genmatch.c ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/67381] genmatch does not honor the order of patterns 2015-08-28 11:59 [Bug tree-optimization/67381] New: genmatch does not honor the order of patterns glisse at gcc dot gnu.org ` (4 preceding siblings ...) 2015-08-31 14:00 ` rguenth at gcc dot gnu.org @ 2015-08-31 14:02 ` rguenth at gcc dot gnu.org 5 siblings, 0 replies; 7+ messages in thread From: rguenth at gcc dot gnu.org @ 2015-08-31 14:02 UTC (permalink / raw) To: gcc-bugs https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67381 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution|--- |FIXED --- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Fixed. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2015-08-31 14:02 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2015-08-28 11:59 [Bug tree-optimization/67381] New: genmatch does not honor the order of patterns glisse at gcc dot gnu.org 2015-08-28 13:09 ` [Bug tree-optimization/67381] " rguenth at gcc dot gnu.org 2015-08-28 23:10 ` pinskia at gcc dot gnu.org 2015-08-31 3:22 ` pinskia at gcc dot gnu.org 2015-08-31 8:43 ` rguenth at gcc dot gnu.org 2015-08-31 14:00 ` rguenth at gcc dot gnu.org 2015-08-31 14:02 ` rguenth at gcc dot gnu.org
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