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Re: AVR byte swap optimization

From: Eric Christopher <echristo at apple dot com>
To: Rask Ingemann Lambertsen <rask at sygehus dot dk>
Cc: Shaun Jackman <sjackman at gmail dot com>, avr-gcc-list at nongnu dot org, gcc at gcc dot gnu dot org
Date: Sun, 19 Nov 2006 14:46:44 -0800
Subject: Re: AVR byte swap optimization
References: <7f45d9390611171530g4c12f68dua3ade87a8b4147b0@mail.gmail.com> <20061119202006.GL24007@sygehus.dk>

It isn't only on the AVR that bswap_32() is nontrivial to get right. These two versions would rule on the i386 if GCC would be just a little bit smarter:

I prefer the single instruction bswap that we now generate for __builtin_bswap[32,64] myself...

-eric

Follow-Ups:
- Re: AVR byte swap optimization
  - From: Rask Ingemann Lambertsen

References:
- AVR byte swap optimization
  - From: Shaun Jackman
- Re: AVR byte swap optimization
  - From: Rask Ingemann Lambertsen

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