http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
Steven Bosscher <steven at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |steven at gcc dot gnu.org
--- Comment #131 from Steven Bosscher <steven at gcc dot gnu.org> 2012-05-12
15:52:54 UTC ---
(In reply to comment #130)
> There are some obvious questions, like why IRA needs 63% of GGC memory,
> and VRP 23%
> tree VRP : 65.88 ( 2%) usr 0.73 ( 2%) sys 66.71
>( 2%) wall 862879 kB (24%) ggc
Is it possible to do this again with gathering statistics enabled? The
only thing I can think of for this would be ASSERT_EXPRs and all the
rewriting involved for them.
> tree slp vectorization : 25.42 ( 1%) usr 0.16 ( 0%) sys 25.50
> ( 1%) wall 436119 kB (12%) ggc
This 12% also seems excessive.
> CPROP : 52.83 ( 2%) usr 0.33 ( 1%) sys 52.91
> ( 2%) wall 336514 kB ( 9%) ggc
And this one also. I'll see if I can understand and explain this one.
> integrated RA : 191.13 ( 7%) usr 0.44 ( 1%) sys 190.64
> ( 7%) wall 2328880 kB (65%) ggc
Uh, wow! :-(
