------- Comment #23 from dberlin at gcc dot gnu dot org 2007-06-04 23:01 ------- Subject: Re: [4.3 Regression] reassoc2 can more extra calculations into a loop
On 4 Jun 2007 22:15:46 -0000, rakdver at kam dot mff dot cuni dot cz <[EMAIL PROTECTED]> wrote: > > > ------- Comment #20 from rakdver at kam dot mff dot cuni dot cz 2007-06-04 > 22:15 ------- > Subject: Re: [4.3 Regression] reassoc2 can more extra calculations into a > loop > > > Can anyone show that the newly added dce_loop anything useful? > > Yes, predictive commoning does not work as well if there is dead code > (which is why it was added. > > > Can we disable it or move it after the second reassoc? > > Reassoc should be fixed, we should not consider workarounds like this. Either fix or remove reassoc2 works for me :) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32183
