From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christopher Li <sparse@chrisli.org>
Subject: Re: [PATCH 1/1] parser: add support for asm goto
Date: Fri, 11 Jun 2010 13:21:26 -0700
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To: Jiri Slaby <jslaby@suse.cz>
Cc: Linux-Sparse <linux-sparse@vger.kernel.org>

On Fri, Jun 11, 2010 at 8:05 AM, Jiri Slaby <jslaby@suse.cz> wrote:
> On 06/10/2010 09:18 PM, Christopher Li wrote:
>> Hi Jirl,
>
> Hi, (the last letter in my name should be small I :))

Ah, sorry about that.

>
> static inline int __static_cpu_has(unsigned char bit)
> {
> =A0 =A0 =A0 =A0asm goto("1: jmp %l[t_no]\n"
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 "2:\n"
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ".section .altinstructions,\"a\"\n"
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 "\n"
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 "1b\n"
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 "0\n" =A0 =A0 =A0 =A0 /* no replaceme=
nt */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 " .byte %P0\n" =A0 =A0 =A0 =A0 /* fea=
ture bit */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 " .byte 2b - 1b\n" =A0 =A0 /* source =
len */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 " .byte 0\n" =A0 =A0 =A0 =A0 =A0 /* r=
eplacement len */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 " .byte 0xff + 0 - (2b-1b)\n" =A0/* p=
adding */
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 ".previous\n"
> =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 : : "i" (bit) : : t_no, ble);
> =A0 =A0 =A0 =A0return 1;
> t_no:
> =A0 =A0 =A0 =A0return 0;
> }
>

I will add that as test case.

Chris
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