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Re: [patch]: To remove the Reaching Uses dataflow problem.
- From: "Seongbae Park (박성배, 朴成培)" <seongbae dot park at gmail dot com>
- To: "Kenneth Zadeck" <zadeck at naturalbridge dot com>
- Cc: "Revital1 Eres" <ERES at il dot ibm dot com>, gcc-patches <gcc-patches at gcc dot gnu dot org>, "Bonzini, Paolo" <bonzini at gnu dot org>
- Date: Tue, 31 Jul 2007 09:00:09 -0700
- Subject: Re: [patch]: To remove the Reaching Uses dataflow problem.
- References: <46AF57E6.90501@naturalbridge.com>
On 7/31/07, Kenneth Zadeck <zadeck@naturalbridge.com> wrote:
> Because of recent improvements to ddg.c, the reaching uses problem is no
> longer used.
> I am deleting it because it is not really a useful dataflow problem in
> that it tends to be more expensive to compute than reaching defs but
> provides little extra information.
>
> Removing the code will discourage any subsequent usage.
>
> I bootstrapped this change on x86-64.
>
> Ok for commit?
>
> Kenny
>
> 2007-07-31 Kenneth Zadeck <zadeck@naturalbridge.com>
>
> * df.h (DF_RU, DF_RU_BB_INFO, df_ru_bb_info, df_ru,
> df_ru_add_problem, df_ru_get_bb_info): Removed.
> (DF_RD, DF_UREC, DF_CHAIN, DF_NOTE): Renumbered.
> * df-problems.c (df_ru_problem_data, df_ru_set_bb_info,
> df_ru_free_bb_info, df_ru_alloc,
> df_ru_bb_local_compute_process_def,
> df_ru_bb_local_compute_process_use, df_ru_bb_local_compute,
> df_ru_local_compute, df_ru_init_solution, df_ru_confluence_n,
> df_ru_transfer_function, df_ru_free, df_ru_start_dump,
> df_ru_top_dump, df_ru_bottom_dump, df_problem problem_RU,
> df_ru_add_problem): Removed.
Looks great to me.
--
#pragma ident "Seongbae Park, compiler, http://seongbae.blogspot.com";