http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42175
Richard Biener changed:
What|Removed |Added
Status|NEW |RESOLVED
Known to work|
--- Comment #8 from rakdver at kam dot mff dot cuni dot cz 2010-01-03
19:37 ---
Subject: Re: Slow compile and much memory use
at -O1
> --- Comment #7 from rguenth at gcc dot gnu dot org 2010-01-03 17:03
> ---
> Well, obviously it is because
>
> template
> gmic& gmi
--- Comment #7 from rguenth at gcc dot gnu dot org 2010-01-03 17:03 ---
Well, obviously it is because
template
gmic& gmic::parse(...)
{
...
while (positionhttp://gcc.gnu.org/bugzilla/show_bug.cgi?id=42175
--- Comment #6 from rguenth at gcc dot gnu dot org 2010-01-03 16:52 ---
Maybe Zdenek has an idea why RTL LIM is so slow.
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rguenth at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #5 from rguenth at gcc dot gnu dot org 2009-11-27 12:38 ---
With -O1 -fno-move-loop-invariants we get
TOTAL : 83.46 2.1785.63
1650809 kB
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42175
--- Comment #4 from rguenth at gcc dot gnu dot org 2009-11-27 12:13 ---
At -O2 gcc 4.4 uses about 2.7GB ram and shows:
Execution times (seconds)
df reaching defs : 30.13 ( 6%) usr 7.70 (73%) sys 39.01 ( 8%) wall
0 kB ( 0%) ggc
df live regs : 14.44 ( 3%) usr
--- Comment #3 from rguenth at gcc dot gnu dot org 2009-11-27 11:58 ---
4.5 shows at -O1:
Execution times (seconds)
garbage collection: 1.66 ( 1%) usr 0.05 ( 0%) sys 1.73 ( 1%) wall
0 kB ( 0%) ggc
callgraph construction: 0.11 ( 0%) usr 0.00 ( 0%) sys 0.13 ( 0%) w
--- Comment #2 from rguenth at gcc dot gnu dot org 2009-11-25 16:41 ---
With the current 4.4 branch I see
loop analysis : 116.95 (44%) usr 0.02 ( 0%) sys 117.11 (42%) wall
11269 kB ( 1%) ggc
TOTAL : 266.16 8.09 277.29
198880
--- Comment #1 from rguenth at gcc dot gnu dot org 2009-11-25 16:29 ---
Created an attachment (id=19149)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19149&action=view)
testcase
Testcase from gmic.
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42175
