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Re: GCC and fast eveluaton of polynomials

From: Stephen L Moshier <moshier at mediaone dot net>
To: dewar at gnat dot com
Cc: gcc at gcc dot gnu dot org
Date: Tue, 20 Nov 2001 08:25:11 -0500 (EST)
Subject: Re: GCC and fast eveluaton of polynomials
Reply-to: moshier at moshier dot ne dot mediaone dot net


> It is certainly familiar that Horner's rule is a bad idea on modern 
> processors with significant ILP. That's nothing new. 

But both of the example versions he shows are Horner's rule.  Why
should the compiler generate significantly slower code for one of
them?

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