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Re: [PATCH i386 5/8] [AVX-512] Extend vectorizer hooks.
- From: Eric Botcazou <ebotcazou at adacore dot com>
- To: Uros Bizjak <ubizjak at gmail dot com>
- Cc: Kirill Yukhin <kirill dot yukhin at gmail dot com>, "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Richard Henderson <rth at redhat dot com>, Jakub Jelinek <jakub at redhat dot com>
- Date: Fri, 3 Jan 2014 12:20:34 +0100
- Subject: Re: [PATCH i386 5/8] [AVX-512] Extend vectorizer hooks.
- Authentication-results: sourceware.org; auth=none
- References: <20131112123633 dot GC34333 at msticlxl57 dot ims dot intel dot com> <201401022318 dot 15106 dot ebotcazou at adacore dot com> <CAFULd4bqaCZcJZmqZ9Cj=5vUJzofKJWg2hDxCm=-2g6yte66zQ at mail dot gmail dot com>
> When compiled with -m32 -mavx, we get:
>
> .align 32
> .type a, @object
> .size a, 32
> a:
>
> so, the alignment was already raised elsewhere. We get .align 16 for
> -msse -m32 when vectorizing.
>
> without -msse (and consequently without vectorizing), we get for -m32:
>
> .align 4
> .type a, @object
> .size a, 32
> a:
>
> which corresponds to 32bit ABI rules (we still get .align16 for 64bit ABI).
Yes, but the issue is that it was 32 before so the alignment decrease is weird.
--
Eric Botcazou