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Re: alloc_pool for tree-ssa-pre.c:phi_translate_table

From: Richard Guenther <richard dot guenther at gmail dot com>
To: Dimitrios Apostolou <jimis at gmx dot net>
Cc: gcc-patches at gcc dot gnu dot org, Andrey Belevantsev <abel at ispras dot ru>
Date: Mon, 20 Aug 2012 09:37:39 +0200
Subject: Re: alloc_pool for tree-ssa-pre.c:phi_translate_table
References: <alpine.LNX.2.02.1208181352320.20463@localhost.localdomain> <alpine.LNX.2.02.1208191206430.20463@localhost.localdomain>

On Sun, Aug 19, 2012 at 8:30 PM, Dimitrios Apostolou <jimis@gmx.net> wrote:
>
>
> 2012-08-19  Dimitrios Apostolou  <jimis@gmx.net>
>
>         * gcc/tree-ssa-pre.c (phi_translate_pool): New static global
>         alloc_pool, used for allocating struct expr_pred_trans_d for
>         phi_translate_table.
>         (phi_trans_add, init_pre, fini_pre): Use it, avoids thousand of
>         malloc() and free() calls.
>
>
> This avoids lots of malloc/free calls and slow iterations during numerous
> htab_delete() in fini_pre(). Tested on pre C++-snapshot, will update info as
> soon as a post C++ one is available.

Ok, if bootstrap / testing still succeeds.

Thanks,
Richard.

>
> Thanks,
> Dimitris

Follow-Ups:
- Re: alloc_pool for tree-ssa-pre.c:phi_translate_table
  - From: Jakub Jelinek

References:
- Speedups/Cleanups: End of GSOC patch collection
  - From: Dimitrios Apostolou
- alloc_pool for tree-ssa-pre.c:phi_translate_table
  - From: Dimitrios Apostolou

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