Path: utzoo!utgpu!utstat!jarvis.csri.toronto.edu!mailrus!ames!haven!ncifcrf!nlm-mcs!adm!smoke!gwyn
From: gwyn@smoke.BRL.MIL (Doug Gwyn )
Newsgroups: comp.lang.c
Subject: Re: C optimizer
Keywords: C pure function optimization
Message-ID: <9693@smoke.BRL.MIL>
Date: 23 Feb 89 12:36:00 GMT
References: <515@larry.UUCP> <9648@smoke.BRL.MIL> <1026@frog.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 8

In article <1026@frog.UUCP> john@frog.UUCP (John Woods) writes:
>The 68881 chip has FCOS, FSIN, and (gasp) FSINCOS which simultaneously
>computes cos() and sin() of the same argument.  A sufficiently clever
>compiler could potentially make great use of that.

Well, hurray -- I've wanted that for years!  I do hope C implementors
will perform this optimization; it could help us computer-graphics types
quite a bit.