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* [Bug driver/61274] New: excessive code size with large-unit-insns
@ 2014-05-21 15:27 wbrana at gmail dot com
2014-05-22 8:29 ` [Bug driver/61274] " rguenth at gcc dot gnu.org
2014-08-12 18:14 ` wbrana at gmail dot com
0 siblings, 2 replies; 3+ messages in thread
From: wbrana at gmail dot com @ 2014-05-21 15:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61274
Bug ID: 61274
Summary: excessive code size with large-unit-insns
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: driver
Assignee: unassigned at gcc dot gnu.org
Reporter: wbrana at gmail dot com
according to docs inline-unit-growth limit is effective only when unit size is
above large-unit-insns, which means if application consists of many small units
with many inlineable functions, application size can be excessive if
inline-unit-growth wasn't applied
there should be some limit also for small units below large-unit-insns
or
large-unit-insns should be set to lower value e.g. 1000 instead of 10,000
or
large-unit-insns should be removed, which means inline-unit-growth is always
applied
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug driver/61274] excessive code size with large-unit-insns
2014-05-21 15:27 [Bug driver/61274] New: excessive code size with large-unit-insns wbrana at gmail dot com
@ 2014-05-22 8:29 ` rguenth at gcc dot gnu.org
2014-08-12 18:14 ` wbrana at gmail dot com
1 sibling, 0 replies; 3+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-05-22 8:29 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61274
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
it's important for benchmarks (usually small) to get excessive inlining.
^ permalink raw reply [flat|nested] 3+ messages in thread
* [Bug driver/61274] excessive code size with large-unit-insns
2014-05-21 15:27 [Bug driver/61274] New: excessive code size with large-unit-insns wbrana at gmail dot com
2014-05-22 8:29 ` [Bug driver/61274] " rguenth at gcc dot gnu.org
@ 2014-08-12 18:14 ` wbrana at gmail dot com
1 sibling, 0 replies; 3+ messages in thread
From: wbrana at gmail dot com @ 2014-08-12 18:14 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61274
--- Comment #2 from wbrana <wbrana at gmail dot com> ---
gcc should probably support new level -O4 which will optimize for benchmarks,
which will equal to current -O3
-O3 and bellow will optimize for applications with saner "--param" values
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2014-08-12 18:14 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2014-05-21 15:27 [Bug driver/61274] New: excessive code size with large-unit-insns wbrana at gmail dot com
2014-05-22 8:29 ` [Bug driver/61274] " rguenth at gcc dot gnu.org
2014-08-12 18:14 ` wbrana at gmail dot com
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