[Bug c++/56493] Performance regression in google dense hashmap

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #14 from Uroš Bizjak --- According to Comment #0 and Comment #9, this PR should be confirmed as a regression from 4.6.

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #13 from Jakub Jelinek --- Created attachment 30312 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30312&action=edit gcc49-pr56493.patch Untested patch that in the FE restores the performance on the simplified testcase. Haven't

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 jim at meyering dot net changed: What|Removed |Added CC||jim at meyering dot net --- Comm

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 Jakub Jelinek changed: What|Removed |Added CC||jakub at gcc dot gnu.org,

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #10 from Andrew Gallagher 2013-04-13 01:44:27 UTC --- I did several attempts at bisecting this. Whenever I (hackily) reverted the change which caused the regression, it just popped up a few hundred revs later. This seems to b

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #9 from Christopher Berner 2013-04-13 01:37:27 UTC --- Created attachment 29864 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29864 Simple test case Here's an even simpler test case. It seems that there's a fairly seri

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 Jonathan Wakely changed: What|Removed |Added CC||hubicka at gcc dot gnu.org --

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #7 from Andrew Gallagher 2013-03-09 04:17:39 UTC --- I was able to bisect this to http://gcc.gnu.org/viewcvs?view=revision&revision=172430. I haven't had time to dig in further, but that rev looks like it has plenty of inlinin

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 Jonathan Wakely changed: What|Removed |Added Status|WAITING |UNCONFIRMED Ever Confirmed

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #5 from Andrew Gallagher 2013-03-01 22:10:14 UTC --- Ah, sorry. Just attached preprocessed sources now (which had to be compressed to it in the 1K size limit).

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #4 from Andrew Gallagher 2013-03-01 22:09:10 UTC --- Created attachment 29565 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29565 Preprocessed test program source

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 Jonathan Wakely changed: What|Removed |Added Status|UNCONFIRMED |WAITING Last reconfirmed|

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #2 from Andrew Gallagher 2013-03-01 13:12:41 UTC --- I also see this same perf regression on trunk (as of r195725).

[Bug c++/56493] Performance regression in google dense hashmap

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493 --- Comment #1 from Andrew Gallagher 2013-03-01 13:11:30 UTC --- Created attachment 29561 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=29561 Sample program using dense hashmap