[Bug rtl-optimization/110587] [14 regression] 96% pr28071.c compile time regression since r14-2337-g37a231cc7594d1

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110587

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEW                         |RESOLVED

--- Comment #19 from Richard Biener <rguenth at gcc dot gnu.org> ---
The tester shows the issue is fixed now (we're faster than before the
regression).  At -O0 compile-time is still dominated by RA
(r14-2920-g07b7cd70399d22, release checking):

 integrated RA                      :   0.29 ( 32%)
 LRA non-specific                   :   0.15 ( 16%)
 TOTAL                              :   0.91

Samples: 3K of event 'cycles:u', Event count (approx.): 5038659855              
Overhead       Samples  Command  Shared Object       Symbol                     
   6.15%           233  cc1      cc1                 [.] process_alt_operands
   4.29%           163  cc1      cc1                 [.] process_bb_node_lives
   3.72%           142  cc1      cc1                 [.] record_reg_classes
   3.01%           114  cc1      cc1                 [.] mark_ref_dead
   2.87%           109  cc1      cc1                 [.] constrain_operands
   2.71%           114  cc1      cc1                 [.]
df_ref_create_structure
   2.47%            94  cc1      cc1                 [.] ira_setup_alts