From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60406) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WFZIS-0005MJ-7z for qemu-devel@nongnu.org; Mon, 17 Feb 2014 20:16:33 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WFZIN-0007b8-EL for qemu-devel@nongnu.org; Mon, 17 Feb 2014 20:16:28 -0500 Received: from mail-qc0-x232.google.com ([2607:f8b0:400d:c01::232]:55257) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WFZIN-0007b1-As for qemu-devel@nongnu.org; Mon, 17 Feb 2014 20:16:23 -0500 Received: by mail-qc0-f178.google.com with SMTP id m20so25241944qcx.9 for ; Mon, 17 Feb 2014 17:16:23 -0800 (PST) Received: from pike.twiddle.home.com ([12.236.175.36]) by mx.google.com with ESMTPSA id w2sm50415225qad.19.2014.02.17.17.16.21 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 17 Feb 2014 17:16:22 -0800 (PST) Sender: Richard Henderson From: Richard Henderson Date: Mon, 17 Feb 2014 19:15:59 -0600 Message-Id: <1392686165-10706-10-git-send-email-rth@twiddle.net> In-Reply-To: <1392686165-10706-1-git-send-email-rth@twiddle.net> References: <1392686165-10706-1-git-send-email-rth@twiddle.net> Subject: [Qemu-devel] [PULL 09/15] tcg/optimize: Optmize ANDC X, Y, Y to MOV X, 0 List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Like we already do for SUB and XOR. Reviewed-by: Paolo Bonzini Reviewed-by: Aurelien Jarno Signed-off-by: Richard Henderson --- tcg/optimize.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tcg/optimize.c b/tcg/optimize.c index 0b1dd13..c1b9284 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -947,6 +947,7 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr, /* Simplify expression for "op r, a, a => movi r, 0" cases */ switch (op) { + CASE_OP_32_64(andc): CASE_OP_32_64(sub): CASE_OP_32_64(xor): if (temps_are_copies(args[1], args[2])) { -- 1.8.5.3