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[Bug sanitizer/69656] -fsanitize=undefined compile time hog
- From: "trippels at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 04 Feb 2016 13:04:39 +0000
- Subject: [Bug sanitizer/69656] -fsanitize=undefined compile time hog
- Auto-submitted: auto-generated
- References: <bug-69656-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69656
--- Comment #3 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #2)
> (In reply to Markus Trippelsdorf from comment #1)
> > # Overhead Command Shared Object Symbol
> > 4.48% cc1plus cc1plus [.] bitmap_set_bit
> > 2.34% cc1plus cc1plus [.] bitmap_clear_bit
> > 1.48% cc1plus cc1plus [.] record_operand_costs
> > 1.37% cc1plus cc1plus [.] bitmap_bit_p
> > 1.23% cc1plus cc1plus [.] gt_ggc_mx_lang_tree_node
> > 1.11% cc1plus cc1plus [.] run_fast_df_dce
> > 1.09% cc1plus cc1plus [.] df_note_compute
> > 0.98% cc1plus cc1plus [.] df_insn_refs_collect
>
> Pretty generic, so - callers? It also uses quite some more memory for me
> (>2GB
> with GCC 5).
from
TOTAL : 42.09 2.27 44.41
1101751 kB
to
df live regs : 17.87 ( 7%) usr 0.04 ( 1%) sys 17.50 ( 7%) wall
0 kB ( 0%) ggc
combiner : 17.08 ( 7%) usr 0.11 ( 2%) sys 17.21 ( 7%) wall
252066 kB ( 4%) ggc
integrated RA : 20.29 ( 8%) usr 0.09 ( 2%) sys 20.37 ( 8%) wall
480341 kB ( 8%) ggc
scheduling 2 : 11.12 ( 5%) usr 0.04 ( 1%) sys 11.16 ( 5%) wall
12347 kB ( 0%) ggc
TOTAL : 239.77 5.48 245.33
5807892 kB
Timing error: total of phase timers exceeds total time.
user 2.397800000000000296e+02 > 2.397700000000000102e+02
wall 2.453499999996274710e+02 > 2.453300000000745058e+02
g++: internal compiler error: Segmentation fault (program cc1plus)
Please submit a full bug report,