[Bug tree-optimization/52272] [4.7 regression] Performance regresswion of 410.bwaves on x86.

2012-02-20 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52272 --- Comment #7 from Richard Guenther 2012-02-20 12:21:19 UTC --- Even though it makes sense (I think) the patch regresses more benchmarks than it fixes, and it does not fix the 410.bwaves regression fully. Defering to 4.8 as I don't have any bet

[Bug tree-optimization/52272] [4.7 regression] Performance regresswion of 410.bwaves on x86.

2012-02-16 Thread vbyakovl23 at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52272 --- Comment #6 from Vladimir Yakovlev 2012-02-16 14:42:36 UTC --- I've checked. The patch fixes the regression. Thanks.

[Bug tree-optimization/52272] [4.7 regression] Performance regresswion of 410.bwaves on x86.

2012-02-16 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52272 --- Comment #4 from Richard Guenther 2012-02-16 12:40:06 UTC --- Before the patch we choose Improved to: cost: 128 (complexity 0) cand_cost: 19 cand_use_cost: 28 (complexity 0) candidates: 2, 4, 7 use:0 --> iv_cand:4, cost=(2,0) us

[Bug tree-optimization/52272] [4.7 regression] Performance regresswion of 410.bwaves on x86.

2012-02-16 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52272 Richard Guenther changed: What|Removed |Added CC||rakdver at gcc dot gnu.org --- Comment

[Bug tree-optimization/52272] [4.7 regression] Performance regresswion of 410.bwaves on x86.

2012-02-16 Thread rguenth at gcc dot gnu.org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52272 Richard Guenther changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Keywords|