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Re: [3.4-bib, Patch] rs6000 floating point multiply-add instructions
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: Geoff Keating <geoffk at geoffk dot org>
- Cc: pinskia at physics dot uc dot edu, segher at koffie dot nl, dalej at apple dot com, gcc-patches at gcc dot gnu dot org
- Date: Tue, 19 Nov 2002 17:58:44 -0500
- Subject: Re: [3.4-bib, Patch] rs6000 floating point multiply-add instructions
>>>>> Geoff Keating writes:
Geoff> What goes wrong? I'd think it'd just be a change in
Geoff> combine_simplify_rtx.
Segher originally proposed a patch at the top-level of combine:
http://gcc.gnu.org/ml/gcc-patches/2002-04/msg00479.html
Richard recommended that it be placed under combine_simplify_rtx(), but it
is not clear how to stuff the patch into combine_simplify_rtx(). I
definitely would like to resurrect that approach, if it is practical.
David