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Re: [PATCH, RS6000] Correct constraints for ior<mode>_mask
- From: David Edelsohn <dje dot gcc at gmail dot com>
- To: Alan Modra <amodra at gmail dot com>
- Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Segher Boessenkool <segher at kernel dot crashing dot org>
- Date: Thu, 27 Aug 2015 09:23:37 -0400
- Subject: Re: [PATCH, RS6000] Correct constraints for ior<mode>_mask
- Authentication-results: sourceware.org; auth=none
- References: <20150827130246 dot GF24814 at bubble dot grove dot modra dot org>
On Thu, Aug 27, 2015 at 9:02 AM, Alan Modra <amodra@gmail.com> wrote:
> ior<mode>_mask always splits to rtl matching rotl<mode>3_insert. The
> latter requires one of its input operands match the output, so let
> reload/lra know the equivalent operand match must also occur for
> ior<mode>_mask.
>
> Bootstrapped and regression tested powerpc64le-linux. OK to apply?
>
> PR target/67356
> * config/rs6000/rs6000.md (ior<mode>_mask): Use constraint "0"
> for operand 1.
Okay.
Thanks, David