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Re: PATCH: Support FMA in fma
- From: Ulrich Drepper <drepper at redhat dot com>
- To: Agner Fog <agner at agner dot org>
- Cc: GNU C Library <libc-alpha at sourceware dot org>
- Date: Wed, 29 Jul 2009 23:01:24 -0700
- Subject: Re: PATCH: Support FMA in fma
- References: <20090729164832.GA31290@lucon.org> <4A7134BA.7010601@agner.org>
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Agner Fog wrote:
> Future CPUs may support FMA3, FMA4 or both.
This is all known.
> May I suggest that you make two flags: HAS_FMA3 and HAS_FMA4.
I'm not adding additional macros until they are used. There is no
support for the FMA4 instruction. Therefore there is no macro.
- --
â Ulrich Drepper â Red Hat, Inc. â 444 Castro St â Mountain View, CA â
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