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Re: Unaligned block moves and MEM_ALIGN re-broken
- From: David Edelsohn <dje at watson dot ibm dot com>
- To: kenner at vlsi1 dot ultra dot nyu dot edu (Richard Kenner)
- Cc: gcc at gcc dot gnu dot org
- Date: Sat, 26 Jan 2002 15:02:40 -0500
- Subject: Re: Unaligned block moves and MEM_ALIGN re-broken
>>>>> Richard Kenner writes:
> I am a little concerned what other problems are going to show up with
> this patch which now is going to make a lot of objects appear much
> less aligned.
Richard> I'm not. On a non-STRICT_ALIGNMENT machine, alignment problems affect only
Richard> efficiency, not correctness.
We are trying to improve performance in GCC 3.1, so I do not want
to introduce any performance regressions due to this patch.
Richard> This patch needs to be thoroughly regression tested.
> I was hoping you'd do that on an rs6000 target.
I have bootstrapped sucessfully on powerpc-ibm-aix4.3.3.0 both
with and without your patch. There were no testsuite regressions for the
languages that are built on AIX (i.e., everything except Java).
Thanks, David