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Re: [patch] Hash table changes from cxx-conversion branch
- From: Richard Biener <richard dot guenther at gmail dot com>
- To: Lawrence Crowl <crowl at googlers dot com>
- Cc: gcc-patches List <gcc-patches at gcc dot gnu dot org>
- Date: Thu, 28 Mar 2013 10:34:37 +0100
- Subject: Re: [patch] Hash table changes from cxx-conversion branch
- References: <CAGqM8fZAysjqkCgxbTMeDsXEvoZ-4DdyhzxadopZksLP9n6m9Q at mail dot gmail dot com> <CAFiYyc1ev9=DN3mhXwvz-3PC4wneXBrQs3Q+CMXv-SjCMjxe7A at mail dot gmail dot com> <CAGqM8fZjzZhW=KxjA0EwHbqDq3D00sq50A=eZbSkBqSoTDnTEg at mail dot gmail dot com>
On Wed, Mar 27, 2013 at 5:44 PM, Lawrence Crowl <crowl@googlers.com> wrote:
> On 3/27/13, Richard Biener <richard.guenther@gmail.com> wrote:
>> On Mar 23, 2013 Lawrence Crowl <crowl@googlers.com> wrote:
>> > This patch is a consolodation of the hash_table patches to the
>> > cxx-conversion branch.
>> >
>> > Update various hash tables from htab_t to hash_table.
>> > Modify types and calls to match.
>>
>> Ugh. Can you split it up somewhat ... like split target bits
>> away at least? Targets may prefer to keep the old hashes for
>> ease of branch maintainance.
>
> I will do that.
>
>> > * tree-ssa-live.c'var_map_base_init::tree_to_index
>> >
>> > New struct tree_int_map_hasher.
>>
>> I think this wants to be generalized - we have the common
>> tree_map/tree_decl_map and tree_int_map maps in tree.h - those
>> (and its users) should be tackled in a separate patch by providing
>> common hashtable trails implementations.
>
> I will investigate for a separate patch.
>
>> > Remove unused:
>> >
>> > htab_t scop::original_pddrs
>> > SCOP_ORIGINAL_PDDRS
>> >
>> > Remove unused:
>> >
>> > insert_loop_close_phis
>> > insert_guard_phis
>> > debug_ivtype_map
>> > ivtype_map_elt_info
>> > new_ivtype_map_elt
>>
>> Unused function/type removal are obvious changes.
>>
>> > Remove unused:
>> > dse.c bitmap clear_alias_sets
>> > dse.c bitmap disqualified_clear_alias_sets
>> > dse.c alloc_pool clear_alias_mode_pool
>> > dse.c dse_step2_spill
>> > dse.c dse_step5_spill
>> > graphds.h htab_t graph::indices
>>
>> See above.
>
> It wasn't obvious that the functions could be removed. :-)
>
> Are you saying you don't want these notations in the description?
No, I was saying that removal of unused functions / types should be
committed separately and do not need approval as they are obvious.
If they are not obvious (I didn't look at that patch part), then posting
separately still helps ;)
Thanks,
Richard.
> --
> Lawrence Crowl