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* [Bug tree-optimization/56213] New: strided load vectorization is unnecessarily restricted
@ 2013-02-05 14:00 rguenth at gcc dot gnu.org
2013-03-27 11:13 ` [Bug tree-optimization/56213] " rguenth at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: rguenth at gcc dot gnu.org @ 2013-02-05 14:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56213
Bug #: 56213
Summary: strided load vectorization is unnecessarily restricted
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Keywords: missed-optimization
Severity: enhancement
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: rguenth@gcc.gnu.org
Blocks: 53947
In vect_check_strided_load we constrain the form of DR_REF for no good reason
now that, after PR53342 fix, we always generate the usual pointer dereference
form.
^ permalink raw reply [flat|nested] 4+ messages in thread* [Bug tree-optimization/56213] strided load vectorization is unnecessarily restricted 2013-02-05 14:00 [Bug tree-optimization/56213] New: strided load vectorization is unnecessarily restricted rguenth at gcc dot gnu.org @ 2013-03-27 11:13 ` rguenth at gcc dot gnu.org 2013-04-04 10:56 ` rguenth at gcc dot gnu.org 2013-04-04 13:02 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2013-03-27 11:13 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56213 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2013-03-27 Ever Confirmed|0 |1 --- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2013-03-27 11:12:56 UTC --- 2013-03-27 Richard Biener <rguenther@suse.de> PR tree-optimization/37021 * tree-vect-data-refs.c (vect_check_strided_load): Allow REALPART/IMAGPART_EXPRs around the supported refs. * tree-ssa-structalias.c (find_func_aliases): Assume that floating-point values are not used to transfer pointers. * gfortran.dg/vect/fast-math-pr37021.f90: New testcase. relaxes this a tiny bit. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/56213] strided load vectorization is unnecessarily restricted 2013-02-05 14:00 [Bug tree-optimization/56213] New: strided load vectorization is unnecessarily restricted rguenth at gcc dot gnu.org 2013-03-27 11:13 ` [Bug tree-optimization/56213] " rguenth at gcc dot gnu.org @ 2013-04-04 10:56 ` rguenth at gcc dot gnu.org 2013-04-04 13:02 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2013-04-04 10:56 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56213 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org |gnu.org | --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2013-04-04 10:56:32 UTC --- Testing a patch. ^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug tree-optimization/56213] strided load vectorization is unnecessarily restricted 2013-02-05 14:00 [Bug tree-optimization/56213] New: strided load vectorization is unnecessarily restricted rguenth at gcc dot gnu.org 2013-03-27 11:13 ` [Bug tree-optimization/56213] " rguenth at gcc dot gnu.org 2013-04-04 10:56 ` rguenth at gcc dot gnu.org @ 2013-04-04 13:02 ` rguenth at gcc dot gnu.org 2 siblings, 0 replies; 4+ messages in thread From: rguenth at gcc dot gnu.org @ 2013-04-04 13:02 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56213 Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED Target Milestone|--- |4.9.0 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> 2013-04-04 13:02:41 UTC --- Author: rguenth Date: Thu Apr 4 12:19:30 2013 New Revision: 197480 URL: http://gcc.gnu.org/viewcvs?rev=197480&root=gcc&view=rev Log: 2013-04-04 Richard Biener <rguenther@suse.de> PR tree-optimization/56213 * tree-vect-data-refs.c (vect_check_strided_load): Remove. (vect_analyze_data_refs): Allow all non-nested loads as strided loads. * gcc.dg/vect/vect-123.c: New testcase. Added: trunk/gcc/testsuite/gcc.dg/vect/vect-123.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vect-data-refs.c ^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-04-04 13:02 UTC | newest] Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-02-05 14:00 [Bug tree-optimization/56213] New: strided load vectorization is unnecessarily restricted rguenth at gcc dot gnu.org 2013-03-27 11:13 ` [Bug tree-optimization/56213] " rguenth at gcc dot gnu.org 2013-04-04 10:56 ` rguenth at gcc dot gnu.org 2013-04-04 13:02 ` rguenth at gcc dot gnu.org
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