[Bug rtl-optimization/53125] Very slow compilation on SPARC

[steven at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53125

--- Comment #9 from Steven Bosscher <steven at gcc dot gnu.org> 2012-05-17 
17:55:01 UTC ---
Author: steven
Date: Thu May 17 17:54:52 2012
New Revision: 187633

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=187633
Log:
    PR rtl-optimization/53125
    * regstat.c (regstat_bb_compute_ri): Take new local_live_last_luid
    argument.  Simplify calculation of REG_LIVE_LENGTH for regnos that
    die in the basic block.  Correctly top off REG_FREQ and
    REG_FREQ_CALLS_CROSSED.
    Remove do_not_gen.
    (regstat_compute_ri): Allocate and free local_live_last_luid.
    Remove do_not_gen.
    (regstat_bb_compute_calls_crossed): Correctly top off
    REG_FREQ_CALLS_CROSSED.


Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/regstat.c