2009-11-02 17:26:25

by André Goddard Rosa

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Subject: [PATCH v2 0/7] vsprintf: reduce code size and clean up

>From 584d9bfc7c1d41b76a05655b4562b98fcbef6ee4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Goddard=20Rosa?= <[email protected]>
Date: Sun, 1 Nov 2009 15:10:31 -0200
Subject: [PATCH v2 0/7] vsprintf: reduce code size and clean up
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This patch reduces code size by 240 bytes on my Core 2 with gcc 4.4.1:
text data bss dec hex filename
15767 0 8 15775 3d9f lib/vsprintf.o-before
15527 0 8 15535 3caf lib/vsprintf.o-after

and implements some cleanups.

Changelog:
v2: addressed feedback from Frederic Weisbecker review (thanks!!)
and split into separate patches
v1: original submission

Andr? Goddard Rosa (7):
vsprintf: factorize "(null)" string
vsprintf: pre-calculate final string length
vsprintf: give it some care to please checkpatch.pl
vsprintf: use TOLOWER whenever possible
vsprintf: reduce code size by avoiding extra check
vsprintf: move local vars to block local vars and remove unneeded
ones
vsprintf: factor out skip_space code in a separate function

lib/vsprintf.c | 306 ++++++++++++++++++++++++++++++--------------------------
1 files changed, 163 insertions(+), 143 deletions(-)


2009-11-02 20:12:32

by Frederic Weisbecker

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Subject: Re: [PATCH v2 0/7] vsprintf: reduce code size and clean up

On Mon, Nov 02, 2009 at 03:26:07PM -0200, Andr? Goddard Rosa wrote:
> Subject: [PATCH v2 0/7] vsprintf: reduce code size and clean up
>
> This patch reduces code size by 240 bytes on my Core 2 with gcc 4.4.1:
> text data bss dec hex filename
> 15767 0 8 15775 3d9f lib/vsprintf.o-before
> 15527 0 8 15535 3caf lib/vsprintf.o-after
>
> and implements some cleanups.
>
> Changelog:
> v2: addressed feedback from Frederic Weisbecker review (thanks!!)
> and split into separate patches
> v1: original submission
>
> Andr? Goddard Rosa (7):
> vsprintf: factorize "(null)" string
> vsprintf: pre-calculate final string length
> vsprintf: give it some care to please checkpatch.pl
> vsprintf: use TOLOWER whenever possible
> vsprintf: reduce code size by avoiding extra check
> vsprintf: move local vars to block local vars and remove unneeded
> ones
> vsprintf: factor out skip_space code in a separate function
>
> lib/vsprintf.c | 306 ++++++++++++++++++++++++++++++--------------------------
> 1 files changed, 163 insertions(+), 143 deletions(-)


Acked-by: Frederic Weisbecker <[email protected]>

But please add a more verbose changelog in the 5th as per Ingo's
request, and do the case statement merge I suggested in the 6th.

Thanks!