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From: "vries at gcc dot gnu.org" <sourceware-bugzilla@sourceware.org>
To: dwz@sourceware.org
Subject: [Bug default/25276] create_import_tree performance improvements
Date: Tue, 01 Jan 2019 00:00:00 -0000	[thread overview]
Message-ID: <bug-25276-11298-vfZnRqqqDS@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-25276-11298@http.sourceware.org/bugzilla/>

https://sourceware.org/bugzilla/show_bug.cgi?id=25276

--- Comment #5 from Tom de Vries <vries at gcc dot gnu.org> ---
(In reply to Tom de Vries from comment #0)
> which is this loop here:
> ...
>       for (icu = ipu->next; icu; icu = icu->next)
>         icu->seen = false;
> ...
> 
> It might be possible to improve here by keeping track of this data in another
> way, say an array of bool or a bitvector, which could be memset to zero.

The array of bool + memset approach reduces create_import_tree phase 3 time
from 104.19 to 23.00.

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  parent reply	other threads:[~2019-12-17 13:25 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-01  0:00 [Bug default/25276] New: " vries at gcc dot gnu.org
2019-01-01  0:00 ` [Bug default/25276] " vries at gcc dot gnu.org
2019-01-01  0:00 ` vries at gcc dot gnu.org
2019-01-01  0:00 ` vries at gcc dot gnu.org
2019-01-01  0:00 ` vries at gcc dot gnu.org
2019-01-01  0:00 ` vries at gcc dot gnu.org [this message]
2019-01-01  0:00 ` vries at gcc dot gnu.org
2019-01-01  0:00 ` vries at gcc dot gnu.org
2019-01-01  0:00 ` vries at gcc dot gnu.org

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