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Message-ID: <20161217143036.GA18078@example.net>
Date: Sat, 17 Dec 2016 15:30:37 +0100
From: u-uy74@...ey.se
To: musl@...ts.openwall.com
Subject: Re: [PATCH v2] use lookup table for malloc bin index instead
of float conversion
On Sat, Dec 17, 2016 at 03:03:24PM +0100, Szabolcs Nagy wrote:
> > > ... wouldn't it be better to drop the 4 unused
> > > entries from the table and add -4's to the indices?
>
> > Wouldn't this enlarge the code more than reduce the data?
>
> most targets have a load instruction with small offset
> and on some targets the compiler emits relocation against
> (tab-4) instead of tab so the code size is not affected.
Oh indeed, I overlooked this link-time evaluation. Thanks.
Rune
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