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[Bug ipa/79966] [6/7 Regression] run time more than twice slower when using -fipa-cp-clone
- From: "marxin at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 09 Mar 2017 08:54:36 +0000
- Subject: [Bug ipa/79966] [6/7 Regression] run time more than twice slower when using -fipa-cp-clone
- Auto-submitted: auto-generated
- References: <bug-79966-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79966
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2017-03-09
CC| |jamborm at gcc dot gnu.org,
| |marxin at gcc dot gnu.org
Known to work| |5.3.0, 5.4.0
Ever confirmed|0 |1
Known to fail| |5.2.0, 6.3.0, 7.0
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Confirmed. There are numbers for releases (OK means time < 0.15):
4.7.0 (93c5ebd73a4d1626)(22 Mar 2012 07:11): result: FAILED
0.520000041
4.7.1 (0e3097e7d505b7be)(14 Jun 2012 08:32): result: FAILED
0.508000016
4.7.2 (c9b304ada7111264)(20 Sep 2012 06:54): result: FAILED
0.512000024
4.7.3 (f22940cb824859bd)(11 Apr 2013 07:57): result: FAILED
0.516000032
4.7.4 (ae10eb82fe34c186)(12 Jun 2014 12:08): result: FAILED
0.515999913
4.8.0 (e9c762ec4671d77e)(22 Mar 2013 10:05): result: FAILED
0.300000012
4.8.1 (caa62b4636bfed71)(31 May 2013 09:02): result: FAILED
0.300000012
4.8.2 (9bcca88e24e64d4e)(16 Oct 2013 07:20): result: FAILED
0.300000012
4.8.3 (6bbf0dec66c0e719)(22 May 2014 09:10): result: FAILED
0.307999969
4.8.4 (1a97fa0bb3fa5669)(19 Dec 2014 11:43): result: FAILED
0.315999925
4.8.5 (cf82a597b0d18985)(23 Jun 2015 07:54): result: FAILED
0.324000061
4.9.0 (a7aa383874520cd5)(22 Apr 2014 09:43): result: FAILED
0.352000058
4.9.1 (c6fa1b4126635939)(16 Jul 2014 10:04): result: FAILED
0.356000006
4.9.2 (c1283af40b65f1ad)(30 Oct 2014 08:27): result: FAILED
0.359999955
4.9.3 (876d41ed80ce13e0)(26 Jun 2015 17:57): result: FAILED
0.368000031
4.9.4 (d3191480f376c780)(03 Aug 2016 05:07): result: FAILED
0.359999955
5.1.0 (d5ad84b309d0d97d)(22 Apr 2015 08:43): result: FAILED
0.23999995
5.2.0 (7b26e3896e268cd4)(16 Jul 2015 09:13): result: FAILED
0.23999995
5.3.0 (2bc376d60753a58b)(04 Dec 2015 10:45): result: OK
0.0920000076
5.4.0 (9d0507742960aa9f)(03 Jun 2016 08:41): result: OK
0.0920000076
6.1.0 (c441d9e8e0438dcf)(27 Apr 2016 08:20): result: FAILED
0.231999993
6.2.0 (6ac74a62ba725829)(22 Aug 2016 08:01): result: FAILED
0.244000018
6.3.0 (4b5e15daff8b5444)(21 Dec 2016 07:51): result: FAILED
0.232000053
Thus only 5.3.0 and 5.4.0 are fast. I'll isolate a commit that's responsible
for that.