From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38645) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z3MOF-0003hT-Dj for qemu-devel@nongnu.org; Fri, 12 Jun 2015 06:40:48 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Z3MOC-0002xH-QY for qemu-devel@nongnu.org; Fri, 12 Jun 2015 06:40:47 -0400 Received: from hall.aurel32.net ([2001:bc8:30d7:101::1]:56265) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Z3MOC-0002wh-Kl for qemu-devel@nongnu.org; Fri, 12 Jun 2015 06:40:44 -0400 From: Aurelien Jarno Date: Fri, 12 Jun 2015 12:40:35 +0200 Message-Id: <1434105638-642-9-git-send-email-aurelien@aurel32.net> In-Reply-To: <1434105638-642-1-git-send-email-aurelien@aurel32.net> References: <1434105638-642-1-git-send-email-aurelien@aurel32.net> Subject: [Qemu-devel] [PULL 08/11] target-sh4: optimize negc using add2 and sub2 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Aurelien Jarno Reviewed-by: Richard Henderson Signed-off-by: Aurelien Jarno --- target-sh4/translate.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/target-sh4/translate.c b/target-sh4/translate.c index b8abfd5..9ab3ba0 100644 --- a/target-sh4/translate.c +++ b/target-sh4/translate.c @@ -795,12 +795,12 @@ static void _decode_opc(DisasContext * ctx) return; case 0x600a: /* negc Rm,Rn */ { - TCGv t0 = tcg_temp_new(); - tcg_gen_neg_i32(t0, REG(B7_4)); - tcg_gen_sub_i32(REG(B11_8), t0, cpu_sr_t); - tcg_gen_setcondi_i32(TCG_COND_GTU, cpu_sr_t, t0, 0); - tcg_gen_setcond_i32(TCG_COND_GTU, t0, REG(B11_8), t0); - tcg_gen_or_i32(cpu_sr_t, cpu_sr_t, t0); + TCGv t0 = tcg_const_i32(0); + tcg_gen_add2_i32(REG(B11_8), cpu_sr_t, + REG(B7_4), t0, cpu_sr_t, t0); + tcg_gen_sub2_i32(REG(B11_8), cpu_sr_t, + t0, t0, REG(B11_8), cpu_sr_t); + tcg_gen_andi_i32(cpu_sr_t, cpu_sr_t, 1); tcg_temp_free(t0); } return; -- 2.1.4