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Re: powerpc & unaligned block moves with fp registers

From: Dale Johannesen <dalej at apple dot com>
To: David Edelsohn <dje at watson dot ibm dot com>
Cc: Dale Johannesen <dalej at apple dot com>, dj at redhat dot com, gcc at gcc dot gnu dot org
Date: Fri, 31 Oct 2003 14:45:12 -0800
Subject: Re: powerpc & unaligned block moves with fp registers

On Friday, October 31, 2003, at 07:47 AM, David Edelsohn wrote:

1. Do we *ever* want to use fp regs for unaligned mem-mem moves?  Is
   there any 32-bit PPC chip where an unaligned 64-bit fp move is
   faster than two (maybe unaligned, maybe mot) 32-bit moves?

What about volatile?

I don't believe 'volatile' requires atomic accesses. You can have objects of volatile-qualified struct types, and can copy them.

Follow-Ups:
- Re: powerpc & unaligned block moves with fp registers
  - From: Richard Henderson

References:
- Re: powerpc & unaligned block moves with fp registers
  - From: David Edelsohn

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