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Re: [PATCH] Introduce -Ofast
- From: Tobias Burnus <burnus at net-b dot de>
- To: Richard Guenther <rguenther at suse dot de>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Fri, 21 May 2010 15:08:08 +0200
- Subject: Re: [PATCH] Introduce -Ofast
- References: <alpine.LNX.2.00.1005211345180.1429@zhemvz.fhfr.qr>
On 05/21/2010 01:49 PM, Richard Guenther wrote:
> This adds a new optimization level, -Ofast. It is supposed to glob
> options that can alter program behavior or are in conflict with
> strict standards compliance only. It adds to options enabled by
> -O3 and targets have a hook to enable extra target specific optimizations.
Thanks! Can you add an item to the 4.6 release notes?
> Currently -Ofast only enables -ffast-math.
Besides, I would still like to lobby for the inclusion of -march=native
for targets, which support it. (Matching Intel's "-fast" and the default
setting of Pathscale's and Portland Group's compiler.)
Tobias