--- Comment #10 from davidxl at gcc dot gnu dot org 2010-08-28 06:00
---
fixed in r163610.
--
davidxl at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #2 from rguenth at gcc dot gnu dot org 2010-08-27 10:23 ---
Can also be seen here:
http://gcc.opensuse.org/SPEC/CFP/sb-barbella.suse.de-head-64-2006/times.html
and here:
http://gcc.opensuse.org/c++bench-frescobaldi/polyhedron/polyhedron-summary.txt-1-0.html
I'm looking
--- Comment #3 from rguenth at gcc dot gnu dot org 2010-08-27 11:41 ---
Reproducable with -O3 alone, -fbounds-check makes it more visible. With plain
-O3:
tree iv optimization : 22.64 (33%) usr 0.18 (11%) sys 22.97 (32%) wall
113858 kB (16%) ggc
and with added -fbounds-check:
--- Comment #4 from jv244 at cam dot ac dot uk 2010-08-27 11:45 ---
(In reply to comment #3)
this connection with bounds-checking makes it sound familiar.
I had a similar bug open (and fixed) as PR43627
with a comment from you
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43627#c11
--- Comment #5 from rguenth at gcc dot gnu dot org 2010-08-27 12:06 ---
MODULE hfx_contract_block
INTEGER, PARAMETER :: dp=KIND(0.0D0)
CONTAINS
SUBROUTINE
block_9_2(mc_max,md_max,kbd,kbc,kad,kac,pbd,pbc,pad,pac,prim,scale)
INTEGER :: mc_max,
--- Comment #6 from rguenth at gcc dot gnu dot org 2010-08-27 12:16 ---
Without -fbounds-check we have around 650 million calls to
iv_ca_get_num_inv_exprs ... called from iv_ca_recount_cost. With
-fbounds-check
this balloons to nearly 5 billion calls to that function.
David - this
--- Comment #7 from rguenth at gcc dot gnu dot org 2010-08-27 13:01 ---
The few remaining bound checks do not look simple to remove (if at all).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45422
--- Comment #8 from hjl dot tools at gmail dot com 2010-08-27 15:52 ---
It is caused by revision 162653:
http://gcc.gnu.org/ml/gcc-cvs/2010-07/msg01007.html
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45422
--- Comment #9 from davidxl at gcc dot gnu dot org 2010-08-27 17:01 ---
Will take a look
--
davidxl at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #1 from jv244 at cam dot ac dot uk 2010-08-26 18:34 ---
Created an attachment (id=21573)
-- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21573action=view)
testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45422
10 matches
Mail list logo
