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Re: New insns for the s390 backend (2)

From: Richard Henderson <rth at redhat dot com>
To: Roger Sayle <roger at eyesopen dot com>
Cc: Bradley Lucier <lucier at math dot purdue dot edu>, gcc-patches at gcc dot gnu dot org
Date: Wed, 27 Aug 2003 16:27:21 -0700
Subject: Re: New insns for the s390 backend (2)
References: <009099F5-D8AC-11D7-87F3-003065B239F6@math.purdue.edu> <Pine.LNX.4.44.0308271208230.8769-100000@www.eyesopen.com>

On Wed, Aug 27, 2003 at 12:19:12PM -0600, Roger Sayle wrote:
> .  Perhaps a safer approach is a __builtin_fmadd (perhaps
> even on all platforms using a default mult-then-add implementation
> when a special isnsn isn't available), and then guard the implicit
> use of fmadd with flag_unsafe_math_optimization.

We should have this at minimum because of c99's fma function.


r~

Follow-Ups:
- Re: New insns for the s390 backend (2)
  - From: Roger Sayle

References:
- Re: New insns for the s390 backend (2)
  - From: Bradley Lucier
- Re: New insns for the s390 backend (2)
  - From: Roger Sayle

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