[Bug middle-end/18927] O(n^2) compile time with -O0 (n= number of basic blocks) in local alloc

2012-05-20 Thread steven at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18927 Steven Bosscher steven at gcc dot gnu.org changed: What|Removed |Added Status|NEW |RESOLVED

[Bug middle-end/18927] O(n^2) compile time with -O0 (n= number of basic blocks) in local alloc

2009-06-09 Thread pinskia at gcc dot gnu dot org
--- Comment #6 from pinskia at gcc dot gnu dot org 2009-06-10 01:53 --- Hmm, I wonder what are the numbers are for 4.4 with IRA. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=18927

[Bug middle-end/18927] O(n^2) compile time with -O0 (n= number of basic blocks) in local alloc

2004-12-23 Thread steven at gcc dot gnu dot org
--- Additional Comments From steven at gcc dot gnu dot org 2004-12-23 11:21 --- Right... OK, so for mainline the problem is different from 3.4 apparently. Someone should get profile information for this to see what is going on here. -- What|Removed

[Bug middle-end/18927] O(n^2) compile time with -O0 (n= number of basic blocks) in local alloc

2004-12-13 Thread heinrich dot brand at fujitsu-siemens dot com
--- Additional Comments From heinrich dot brand at fujitsu-siemens dot com 2004-12-13 11:37 --- My compiler outputs really this line: global alloc :1083.72 (99%) usr 0.39 (51%) sys1085.19 (99%) wall Line with context: [EMAIL PROTECTED]:~/CCS/GLOBALALLOC/04

[Bug middle-end/18927] O(n^2) compile time with -O0 (n= number of basic blocks) in local alloc

2004-12-11 Thread steven at gcc dot gnu dot org
--- Additional Comments From steven at gcc dot gnu dot org 2004-12-11 13:14 --- Ah, but it's not *global* alloc, it is *local* alloc! From your scripts: local alloc : 0.16 (59%) usr 0.00 ( 0%) sys 0.00 ( 0%) wall local alloc : 0.63 (72%) usr 0.00 (