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From: Pascal Bach <pascal.bach@siemens.com>
To: openembedded-core@lists.openembedded.org
Subject: Re: Default value for FULL_OPTIMIZATION
Date: Tue, 2 Feb 2016 17:23:02 +0100	[thread overview]
Message-ID: <56B0D7E6.9080604@siemens.com> (raw)
In-Reply-To: <56B0BC99.5050405@topic.nl>



Am 02.02.2016 um 15:26 schrieb Mike Looijmans:
> You'd have to check the GCC documentation to be sure, but I suspect that all of "-fexpensive-optimizations -fomit-frame-pointer -frename-registers" are already in effect at -O2 optimization level, so they're redundant.
>

- "-fexpensive-optimizations" is included in -O2
- "-fomit-frame-pointer" is included in -O but "only on machines where doing so does not interfere with debugging", whatever that means ;)
- "-frename-registers" doesn't seem to be included

Soruce: https://gcc.gnu.org/onlinedocs/gcc-5.2.0/gcc/Optimize-Options.html


  reply	other threads:[~2016-02-02 16:23 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-02 13:26 Default value for FULL_OPTIMIZATION Pascal Bach
2016-02-02 14:26 ` Mike Looijmans
2016-02-02 16:23   ` Pascal Bach [this message]
2016-02-02 14:47 ` Richard Purdie
2016-02-02 20:52 ` Phil Blundell
2016-02-03  6:17   ` Khem Raj
2016-02-03 20:48     ` Phil Blundell
2016-02-03 20:51       ` Khem Raj
2016-02-03 20:54         ` Burton, Ross
2016-02-03 20:57         ` Phil Blundell
2016-02-03 20:59           ` Khem Raj
2016-02-03 21:08             ` Phil Blundell
2016-02-03 22:37               ` Khem Raj
2016-02-04 12:56             ` Mike Looijmans

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