https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #14 from Uroš Bizjak ubizjak at gmail dot com ---
According to Comment #0 and Comment #9, this PR should be confirmed as a
regression from 4.6.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #13 from Jakub Jelinek jakub at gcc dot gnu.org ---
Created attachment 30312
-- http://gcc.gnu.org/bugzilla/attachment.cgi?id=30312action=edit
gcc49-pr56493.patch
Untested patch that in the FE restores the performance on the
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
Jakub Jelinek jakub at gcc dot gnu.org changed:
What|Removed |Added
CC||jakub at gcc dot
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
---
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #9 from Christopher Berner cberner at fb dot com 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
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #10 from Andrew Gallagher andrewjcg at gmail dot com 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
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
Jonathan Wakely redi at gcc dot gnu.org changed:
What|Removed |Added
CC||hubicka
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #7 from Andrew Gallagher andrewjcg at gmail dot com 2013-03-09
04:17:39 UTC ---
I was able to bisect this to
http://gcc.gnu.org/viewcvs?view=revisionrevision=172430. I haven't had time
to dig in further, but that rev looks
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #1 from Andrew Gallagher andrewjcg at gmail dot com 2013-03-01
13:11:30 UTC ---
Created attachment 29561
-- http://gcc.gnu.org/bugzilla/attachment.cgi?id=29561
Sample program using dense hashmap
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #2 from Andrew Gallagher andrewjcg at gmail dot com 2013-03-01
13:12:41 UTC ---
I also see this same perf regression on trunk (as of r195725).
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
Jonathan Wakely redi at gcc dot gnu.org changed:
What|Removed |Added
Status|UNCONFIRMED |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #4 from Andrew Gallagher andrewjcg at gmail dot com 2013-03-01
22:09:10 UTC ---
Created attachment 29565
-- http://gcc.gnu.org/bugzilla/attachment.cgi?id=29565
Preprocessed test program source
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
--- Comment #5 from Andrew Gallagher andrewjcg at gmail dot com 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).
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56493
Jonathan Wakely redi at gcc dot gnu.org changed:
What|Removed |Added
Status|WAITING
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