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Re: Enable FTZ/DAZ for SSE?

From: Richard Henderson <rth at redhat dot com>
To: "H. J. Lu" <hjl at lucon dot org>
Cc: gcc at gcc dot gnu dot org
Date: Tue, 9 Aug 2005 14:58:51 -0700
Subject: Re: Enable FTZ/DAZ for SSE?
References: <20050809180221.GA32357@lucon.org> <20050809203511.GA20265@redhat.com> <20050809210108.GA2390@lucon.org> <20050809213046.GA2876@lucon.org>

On Tue, Aug 09, 2005 at 02:30:46PM -0700, H. J. Lu wrote:
> There is a minor problem. How can I add crtfastmath.o for SSE targets
> only? 

You don't.  You either add code to detect sse, or you make the
spec depend on -mfpmath=sse.

> Can I add a new macro, TARGET_EXPAND_MAIN_FUNCTION, to
> expand_main_function to generate those instructions directly?

No.


r~

Follow-Ups:
- Re: Enable FTZ/DAZ for SSE?
  - From: H. J. Lu
- PATCH: Enable FTZ/DAZ for SSE via fast math
  - From: H. J. Lu

References:
- Enable FTZ/DAZ for SSE?
  - From: H. J. Lu
- Re: Enable FTZ/DAZ for SSE?
  - From: Richard Henderson
- Re: Enable FTZ/DAZ for SSE?
  - From: H. J. Lu
- Re: Enable FTZ/DAZ for SSE?
  - From: H. J. Lu

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