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math-68881.h vs -ffast-math

From: Vincent Rivière <vincent dot riviere at freesbee dot fr>
To: gcc at gcc dot gnu dot org
Date: Thu, 10 Feb 2011 00:39:58 +0100
Subject: math-68881.h vs -ffast-math

Hello.

The file gcc/config/m68k/math-68881.h is distributed with GCC. It is about inlining the libm functions using FPU instructions on m68k targets.

But -ffast-math seems to serve the same purpose, even better.

My question: Is math-68881.h still useful for some purpose ?

BTW: That file does not support C99, I have just posted a patch to fix that.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47672

--
Vincent Rivière

Follow-Ups:
- Re: math-68881.h vs -ffast-math
  - From: Richard Henderson

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