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Re: Refine check for using bitfield instructions
- From: Alan Modra <amodra at bigpond dot net dot au>
- To: Richard Kenner <kenner at vlsi1 dot ultra dot nyu dot edu>
- Cc: gcc-patches at gcc dot gnu dot org
- Date: Tue, 6 May 2003 09:59:20 +0930
- Subject: Re: Refine check for using bitfield instructions
- References: <10305051802.AA19597@vlsi1.ultra.nyu.edu>
On Mon, May 05, 2003 at 02:02:28PM -0400, Richard Kenner wrote:
> Unfortunately, I can't find what the test case for this was: it was
> part of other changes that I split off.
>
> Tested on i686-pc-linux-gnu.
>
> Mon Jun 17 16:02:24 2002 Olivier Hainque <hainque@act-europe.fr>
>
> * expr.c (expand_expr, case BIT_FIELD_REF): Refine the test forcing
> usage of bitfield instructions for mode1 != BLKmode, only ignoring
> SLOW_UNALIGNED_ACCESS if the field is not byte aligned.
> (store_field): Likewise.
Looks like the fix I was using for the breakage you introduced with
http://gcc.gnu.org/ml/gcc-patches/2003-04/msg01263.html
--
Alan Modra
IBM OzLabs - Linux Technology Centre