[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-13 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #32 from Richard Biener --- (In reply to Jakub Jelinek from comment #30) > I didn't close it because I wanted to see updated benchmark numbers. Either > I'll grab the benchmark, or if somebody else posts the latest numbers, we > can

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-13 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 Richard Biener changed: What|Removed |Added Status|NEW |RESOLVED Resolution|---

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-12 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #30 from Jakub Jelinek --- I didn't close it because I wanted to see updated benchmark numbers. Either I'll grab the benchmark, or if somebody else posts the latest numbers, we can close it or keep open depending on that.

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-12 Thread law at redhat dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 Jeffrey A. Law changed: What|Removed |Added CC||law at redhat dot com --- Comment #29

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-12 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #28 from Jakub Jelinek --- Author: jakub Date: Wed Apr 12 18:09:47 2017 New Revision: 246882 URL: https://gcc.gnu.org/viewcvs?rev=246882=gcc=rev Log: PR tree-optimization/79390 * optabs.c (emit_conditional_move): If

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-12 Thread rguenther at suse dot de
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #27 from rguenther at suse dot de --- On Wed, 12 Apr 2017, jakub at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 > > --- Comment #26 from Jakub Jelinek --- > Created attachment 41189 > -->

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-12 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #26 from Jakub Jelinek --- Created attachment 41189 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41189=edit gcc7-pr79390-ecm.patch Untested fix for the -O3 -ffast-math -march=haswell case. The difference between

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-12 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 Richard Biener changed: What|Removed |Added Priority|P1 |P2

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-12 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #25 from Richard Biener --- So the original report is fixed (-O3 -march-native). But adding -ffast-math still ends up regressing. At this point it's probably appropriate to re-target to GCC 8.

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-12 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #24 from Richard Biener --- Author: rguenth Date: Wed Apr 12 09:41:02 2017 New Revision: 246869 URL: https://gcc.gnu.org/viewcvs?rev=246869=gcc=rev Log: 2017-04-12 Richard Biener PR

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-11 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #23 from Richard Biener --- (In reply to Richard Biener from comment #22) > (In reply to rguent...@suse.de from comment #21) > > On April 7, 2017 6:57:13 PM GMT+02:00, "jakub at gcc dot gnu.org" > > wrote:

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-10 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #22 from Richard Biener --- (In reply to rguent...@suse.de from comment #21) > On April 7, 2017 6:57:13 PM GMT+02:00, "jakub at gcc dot gnu.org" > wrote: >

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-07 Thread rguenther at suse dot de
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #21 from rguenther at suse dot de --- On April 7, 2017 6:57:13 PM GMT+02:00, "jakub at gcc dot gnu.org" wrote: >https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 > >--- Comment #20 from Jakub Jelinek ---

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-07 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #20 from Jakub Jelinek --- So, Richard, any thoughts on what can be done split paths to avoid this?

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-07 Thread vincenzo.innocente at cern dot ch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #19 from vincenzo Innocente --- Could you please have a look also to c++ and lto: this is what I get on my skylake: for c++ or lto -fno-split-paths pessimizes [innocent@vinavx3 scimark2TMP]$ gcc -march=native -Wall -Ofast *.c -lm ;

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-07 Thread rguenther at suse dot de
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #18 from rguenther at suse dot de --- On Fri, 7 Apr 2017, jakub at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 > > --- Comment #16 from Jakub Jelinek --- > Has somebody the benchmark around to retry

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-07 Thread vincenzo.innocente at cern dot ch
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #17 from vincenzo Innocente --- [innocent@vinavx3 innocent]$ mkdir scimark2TMP [innocent@vinavx3 innocent]$ cd scimark2TMP [innocent@vinavx3 scimark2TMP]$ wget http://math.nist.gov/scimark2/scimark2_1c.zip . . gcc version 7.0.1

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-06 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #16 from Jakub Jelinek --- Has somebody the benchmark around to retry with current trunk, with -f{,no-}split-paths and compare that to some older trunk and gcc6?

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-06 Thread ro at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #15 from Rainer Orth --- Author: ro Date: Thu Apr 6 13:11:21 2017 New Revision: 246729 URL: https://gcc.gnu.org/viewcvs?rev=246729=gcc=rev Log: Fix gcc.target/i386/pr79390.c for Solaris as PR tree-optimization/79390

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-04 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #14 from Jakub Jelinek --- Author: jakub Date: Tue Apr 4 17:52:27 2017 New Revision: 246686 URL: https://gcc.gnu.org/viewcvs?rev=246686=gcc=rev Log: PR tree-optimization/79390 * target.h (struct noce_if_info):

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-04-01 Thread jakub at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 --- Comment #13 from Jakub Jelinek --- Created attachment 41097 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=41097=edit gcc7-pr79390.patch Untested fix.

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-03-31 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 Richard Biener changed: What|Removed |Added Priority|P3 |P1

[Bug tree-optimization/79390] [7 Regression] 10% performance drop in SciMark2 LU after r242550

2017-03-28 Thread rguenth at gcc dot gnu.org
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79390 Richard Biener changed: What|Removed |Added Known to work||6.3.1 Target Milestone|---