From: Richard Henderson <rth@twiddle.net>
To: Aurelien Jarno <aurelien@aurel32.net>
Cc: Peter Maydell <peter.maydell@linaro.org>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH v2 3/5] target-arm: convert sar, shl and shr helpers to TCG
Date: Fri, 21 Sep 2012 16:14:29 -0700 [thread overview]
Message-ID: <505CF4D5.3080102@twiddle.net> (raw)
In-Reply-To: <1348256016-5077-4-git-send-email-aurelien@aurel32.net>
On 09/21/2012 12:33 PM, Aurelien Jarno wrote:
> +static void gen_sar(TCGv dest, TCGv t0, TCGv t1)
> +{
> + TCGv tmp1, tmp2, tmp3;
> + tmp1 = tcg_temp_new_i32();
> + tcg_gen_andi_i32(tmp1, t1, 0xff);
> + tmp2 = tcg_const_i32(0x1f);
> + tmp3 = tcg_const_i32(0);
> + tcg_gen_movcond_i32(TCG_COND_GTU, tmp1, tmp1, tmp2, tmp2, tmp1);
> + tcg_temp_free_i32(tmp3);
> + tcg_temp_free_i32(tmp2);
> + tcg_gen_andi_i32(tmp1, tmp1, 0x1f);
> + tcg_gen_sar_i32(dest, t0, tmp1);
> + tcg_temp_free_i32(tmp1);
> +}
tmp3 is unused in this version.
r~
next prev parent reply other threads:[~2012-09-21 23:14 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-21 19:33 [Qemu-devel] [PATCH v2 0/5] target-arm: misc optimizations Aurelien Jarno
2012-09-21 19:33 ` [Qemu-devel] [PATCH v2 1/5] target-arm: use globals for CC flags Aurelien Jarno
2012-09-25 16:40 ` Peter Maydell
2012-09-21 19:33 ` [Qemu-devel] [PATCH v2 2/5] target-arm: convert add_cc and sub_cc helpers to TCG Aurelien Jarno
2012-09-25 16:40 ` Peter Maydell
2012-09-21 19:33 ` [Qemu-devel] [PATCH v2 3/5] target-arm: convert sar, shl and shr " Aurelien Jarno
2012-09-21 23:14 ` Richard Henderson [this message]
2012-09-22 9:33 ` Aurelien Jarno
2012-09-25 13:57 ` Peter Maydell
2012-09-25 22:41 ` Aurelien Jarno
2012-09-21 19:33 ` [Qemu-devel] [PATCH v2 4/5] target-arm: mark a few integer helpers const and pure Aurelien Jarno
2012-09-25 16:40 ` Peter Maydell
2012-09-21 19:33 ` [Qemu-devel] [PATCH v2 5/5] target-arm: use deposit instead of hardcoded version Aurelien Jarno
2012-09-25 16:41 ` Peter Maydell
2012-09-25 16:39 ` [Qemu-devel] [PATCH v2 0/5] target-arm: misc optimizations Peter Maydell
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