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Date: Sun, 18 Oct 2009 16:21:13 +0200
Message-ID: <761ea48b0910180721q6de006d6u738f0d5024716c4e@mail.gmail.com>
Subject: Re: [Qemu-devel] [PATCH] target-arm: use clz32() instead of a for
	loop
From: Laurent Desnogues <laurent.desnogues@gmail.com>
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To: Aurelien Jarno <aurelien@aurel32.net>
Cc: qemu-devel@nongnu.org

On Thu, Oct 15, 2009 at 11:14 PM, Aurelien Jarno <aurelien@aurel32.net> wro=
te:
> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
> ---
> =A0target-arm/helper.c | =A0 =A06 ++----
> =A01 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/target-arm/helper.c b/target-arm/helper.c
> index 701629a..656b5df 100644
> --- a/target-arm/helper.c
> +++ b/target-arm/helper.c
> @@ -7,6 +7,7 @@
> =A0#include "gdbstub.h"
> =A0#include "helpers.h"
> =A0#include "qemu-common.h"
> +#include "host-utils.h"
>
> =A0static uint32_t cortexa8_cp15_c0_c1[8] =3D
> =A0{ 0x1031, 0x11, 0x400, 0, 0x31100003, 0x20000000, 0x01202000, 0x11 };
> @@ -394,10 +395,7 @@ uint32_t HELPER(uxtb16)(uint32_t x)
>
> =A0uint32_t HELPER(clz)(uint32_t x)
> =A0{
> - =A0 =A0int count;
> - =A0 =A0for (count =3D 32; x; count--)
> - =A0 =A0 =A0 =A0x >>=3D 1;
> - =A0 =A0return count;
> + =A0 =A0return clz32(x);
> =A0}
>
> =A0int32_t HELPER(sdiv)(int32_t num, int32_t den)
> --
> 1.6.1.3

Acked-by: Laurent Desnogues <laurent.desnogues@gmail.com>