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Re: patch: rs6000 specific

From: Richard Henderson <rth at redhat dot com>
To: Geoff Keating <geoffk at redhat dot com>
Cc: jsm28 at cam dot ac dot uk, dalej at apple dot com, gcc-patches at gcc dot gnu dot org
Date: Wed, 5 Dec 2001 11:59:55 -0800
Subject: Re: patch: rs6000 specific
References: <Pine.LNX.4.33.0112042347450.2345-100000@kern.srcf.societies.cam.ac.uk> <200112050058.QAA07676@geoffk.org>

On Tue, Dec 04, 2001 at 04:58:24PM -0800, Geoff Keating wrote:
> I was thinking, though, of transformations like
> 
> (mul:DF (neg:DF (reg:DF ...)) (reg:DF ...))
> to
> (neg:DF (mul:DF (reg:DF ...) (reg:DF ...)))
> 
> which I couldn't work out whether they were IEEE-safe or not.

This is safe.


r~

References:
- Re: patch: rs6000 specific
  - From: Joseph S. Myers
- Re: patch: rs6000 specific
  - From: Geoff Keating

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