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Re: [PATCH] Add FMA_EXPR, un-cse multiplications before expansion

From: Geert Bosch <bosch at adacore dot com>
To: "Joseph S. Myers" <joseph at codesourcery dot com>
Cc: Richard Guenther <rguenther at suse dot de>, gcc-patches at gcc dot gnu dot org, rth at redhat dot com
Date: Thu, 21 Oct 2010 20:43:07 -0400
Subject: Re: [PATCH] Add FMA_EXPR, un-cse multiplications before expansion
References: <alpine.LNX.2.00.1010211136140.23074@zhemvz.fhfr.qr> <Pine.LNX.4.64.1010212207390.6662@digraph.polyomino.org.uk> <B0421EE7-4423-43AE-BB78-BDD3A2F26DA5@adacore.com> <Pine.LNX.4.64.1010220009390.6662@digraph.polyomino.org.uk>

On Oct 21, 2010, at 20:12, Joseph S. Myers wrote:
> You have working fma functions right now in git glibc, except for:
> 
> * fmal for IBM long double (double double)
> 
> * targets without exceptions and rounding mode support (generally using 
> software floating point), where I suspect a pure soft-fp implementation 
> may be best.

This is really great, but leads us back to the same 
issue that it won't do anything for non-glibc systems.

  -Geert

References:
- [PATCH] Add FMA_EXPR, un-cse multiplications before expansion
  - From: Richard Guenther
- Re: [PATCH] Add FMA_EXPR, un-cse multiplications before expansion
  - From: Joseph S. Myers
- Re: [PATCH] Add FMA_EXPR, un-cse multiplications before expansion
  - From: Geert Bosch
- Re: [PATCH] Add FMA_EXPR, un-cse multiplications before expansion
  - From: Joseph S. Myers

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