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Re: [PATCH] Implement fma correctly

From: Ulrich Drepper <drepper at gmail dot com>
To: Richard Henderson <rth at twiddle dot net>
Cc: Jakub Jelinek <jakub at redhat dot com>, libc-alpha at sources dot redhat dot com
Date: Wed, 13 Oct 2010 12:27:46 -0400
Subject: Re: [PATCH] Implement fma correctly
References: <20101012191605.GQ2652@sunsite.ms.mff.cuni.cz> <4CB4DAF7.6080301@twiddle.net>

Going back to this:

On Tue, Oct 12, 2010 at 18:02, Richard Henderson <rth@twiddle.net> wrote:
> You'd have to either
> open-code that function in order avoid doing extra work,
> or add new helper functions.

Add #ifdef code in the generic implementation, depending on some new
macro which does the switching of the round mode and the precision.
arch-specific wrappers of the file can define those symbols before
including the generic implementation.  In case there is no such macro
use the current generic code.

References:
- [PATCH] Implement fma correctly
  - From: Jakub Jelinek
- Re: [PATCH] Implement fma correctly
  - From: Richard Henderson

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