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Re: [PATCH x86] Enable v64qi permutations.
- From: Jakub Jelinek <jakub at redhat dot com>
- To: "H.J. Lu" <hjl dot tools at gmail dot com>
- Cc: Ilya Tocar <tocarip dot intel at gmail dot com>, Uros Bizjak <ubizjak at gmail dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 4 Dec 2014 13:04:26 +0100
- Subject: Re: [PATCH x86] Enable v64qi permutations.
- Authentication-results: sourceware.org; auth=none
- References: <20141204094959 dot GA67582 at msticlxl7 dot ims dot intel dot com> <CAMe9rOoQ+TiWhZEeMS0_9KZ_+pti8AFDRD56Jv7wj5PUqvdr3w at mail dot gmail dot com> <20141204115733 dot GA1923 at tucnak dot redhat dot com> <CAMe9rOpFcFkAkxzeZub2bqM8pzRf3D4-z7jcjpaJX+-i=p-HnA at mail dot gmail dot com>
- Reply-to: Jakub Jelinek <jakub at redhat dot com>
On Thu, Dec 04, 2014 at 04:00:27AM -0800, H.J. Lu wrote:
> >> Can you add a few testcases?
> >
> > Isn't it already covered by gcc.dg/torture/vshuf* ?
> >
>
> I didn't see them fail on my machines today.
Those are executable testcases, those better should not fail.
The patch just improved code generation and the testcases test
if the improved code generation works well.
Did you mean some scan-assembler test that verifies the better code
generation? Guess it is possible, though fragile.
Jakub