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Re: reload vs adds with clobbers

From: DJ Delorie <dj at redhat dot com>
To: geoffk at geoffk dot org
Cc: weigand at immd1 dot informatik dot uni-erlangen dot de, gcc at gcc dot gnu dot org
Date: Fri, 30 May 2003 21:43:06 -0400
Subject: Re: reload vs adds with clobbers
References: <200305302210.AAA21176@faui11.informatik.uni-erlangen.de> <jmptm0x7js.fsf@desire.geoffk.org>

> Yes.  In fact, I thought that was already done for xstormy16, but I
> probably missed a case...

I might have messed it up, too.  I'm working on a newly reported bug,
and the fix for that broke the built-in-setjump test, leading me to
this point.  FYI, the new bug is a case where the addhi3 is created
with the expander, but has the (scratch:HI) in it - after reload has
begun, so it doesn't match the pattern's constraints.

References:
- Re: reload vs adds with clobbers
  - From: Ulrich Weigand
- Re: reload vs adds with clobbers
  - From: Geoff Keating

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