From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:52888) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLyke-0005xf-K0 for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:03:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TLykT-0007gX-KS for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:03:16 -0400 Received: from mail-pb0-f45.google.com ([209.85.160.45]:62773) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TLykT-0007dd-EG for qemu-devel@nongnu.org; Wed, 10 Oct 2012 12:03:05 -0400 Received: by mail-pb0-f45.google.com with SMTP id rp2so850998pbb.4 for ; Wed, 10 Oct 2012 09:03:05 -0700 (PDT) Sender: Richard Henderson From: Richard Henderson Date: Wed, 10 Oct 2012 09:02:43 -0700 Message-Id: <1349884967-4608-10-git-send-email-rth@twiddle.net> In-Reply-To: <1349884967-4608-1-git-send-email-rth@twiddle.net> References: <1349884967-4608-1-git-send-email-rth@twiddle.net> Subject: [Qemu-devel] [PATCH 09/13] tcg-sparc: Optimize setcond2 equality compare with 0. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Blue Swirl Signed-off-by: Richard Henderson --- tcg/sparc/tcg-target.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/tcg/sparc/tcg-target.c b/tcg/sparc/tcg-target.c index f7d52d6..9c87cb6 100644 --- a/tcg/sparc/tcg-target.c +++ b/tcg/sparc/tcg-target.c @@ -693,9 +693,18 @@ static void tcg_out_setcond2_i32(TCGContext *s, TCGCond cond, TCGArg ret, switch (cond) { case TCG_COND_EQ: case TCG_COND_NE: - tcg_out_setcond_i32(s, cond, tmp, al, bl, blconst); - tcg_out_cmp(s, ah, bh, bhconst); - tcg_out_mov(s, TCG_TYPE_I32, ret, tmp); + if (bl == 0 && bh == 0) { + if (cond == TCG_COND_EQ) { + tcg_out_arith(s, TCG_REG_G0, al, ah, ARITH_ORCC); + tcg_out_movi(s, TCG_TYPE_I32, ret, 1); + } else { + tcg_out_arith(s, ret, al, ah, ARITH_ORCC); + } + } else { + tcg_out_setcond_i32(s, cond, tmp, al, bl, blconst); + tcg_out_cmp(s, ah, bh, bhconst); + tcg_out_mov(s, TCG_TYPE_I32, ret, tmp); + } tcg_out_movcc(s, TCG_COND_NE, MOVCC_ICC, ret, cond == TCG_COND_NE, 1); break; -- 1.7.11.4