Subject: Re: -mstrict-align on powerpc
To: Nathan J. Williams <>
From: Jason Thorpe <>
List: tech-toolchain
Date: 03/16/2003 11:48:34
On Sunday, March 16, 2003, at 10:41  AM, Nathan J. Williams wrote:

> Why? The performance of unaligned fetches always sucks, even when they
> don't trap. I think we should be going the other way: actively
> preventing, if not forbidding, unaligned data structures even on CPUs
> that don't require alignment, to improve performance.

Is unaligned access really that bad on PowerPC CPUs that can do it?

         -- Jason R. Thorpe <>