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Re: Skipping assembler when producing slim LTO files
- From: Steven Bosscher <stevenb dot gcc at gmail dot com>
- To: Jan Hubicka <hubicka at ucw dot cz>
- Cc: Ian Lance Taylor <iant at google dot com>, Andi Kleen <andi at firstfloor dot org>, GCC Development <gcc at gcc dot gnu dot org>
- Date: Wed, 24 Sep 2014 19:04:48 +0200
- Subject: Re: Skipping assembler when producing slim LTO files
- Authentication-results: sourceware.org; auth=none
- References: <20140924054651 dot GB5371 at kam dot mff dot cuni dot cz> <878ul96pnx dot fsf at tassilo dot jf dot intel dot com> <CAKOQZ8zCs8ZjGP3JWw6HVNXGS0junJn1BuvnMXmK8Ou8WHEnvg at mail dot gmail dot com> <20140924161906 dot GA26922 at atrey dot karlin dot mff dot cuni dot cz> <20140924163227 dot GB26922 at atrey dot karlin dot mff dot cuni dot cz>
On Wed, Sep 24, 2014 at 6:32 PM, Jan Hubicka <firstname.lastname@example.org> wrote:
> Libreoffice shows that GCC needs about twice as much of system time. According
> to profiles, good part is the ugly way we pass stuff down to assembler and
> other part is memory use during the copmilation stage.
Are you using -pipe? AFAIR this still isn't the default, even on
GNU/Linux, but it is typically a lot faster than without.