From patchwork Fri Sep 21 19:43:18 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aurelien Jarno X-Patchwork-Id: 185913 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id A4DAA2C0081 for ; Sat, 22 Sep 2012 06:33:55 +1000 (EST) Received: from localhost ([::1]:45203 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF99V-0001TJ-RE for incoming@patchwork.ozlabs.org; Fri, 21 Sep 2012 15:44:41 -0400 Received: from eggs.gnu.org ([208.118.235.92]:59093) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF98k-00084T-QA for qemu-devel@nongnu.org; Fri, 21 Sep 2012 15:43:55 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1TF98h-0002lv-7F for qemu-devel@nongnu.org; Fri, 21 Sep 2012 15:43:54 -0400 Received: from hall.aurel32.net ([88.191.126.93]:43259) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1TF98g-0002kE-UV for qemu-devel@nongnu.org; Fri, 21 Sep 2012 15:43:51 -0400 Received: from [2001:470:d4ed:1:2db:dfff:fe14:52d] (helo=ohm.aurel32.net) by hall.aurel32.net with esmtpsa (TLS1.0:DHE_RSA_AES_128_CBC_SHA1:16) (Exim 4.72) (envelope-from ) id 1TF98f-0005k1-If; Fri, 21 Sep 2012 21:43:49 +0200 Received: from aurel32 by ohm.aurel32.net with local (Exim 4.80) (envelope-from ) id 1TF98d-0002M3-I5; Fri, 21 Sep 2012 21:43:47 +0200 From: Aurelien Jarno To: qemu-devel@nongnu.org Date: Fri, 21 Sep 2012 21:43:18 +0200 Message-Id: <1348256598-8146-11-git-send-email-aurelien@aurel32.net> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1348256598-8146-1-git-send-email-aurelien@aurel32.net> References: <1348256598-8146-1-git-send-email-aurelien@aurel32.net> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3) X-Received-From: 88.191.126.93 Cc: Aurelien Jarno Subject: [Qemu-devel] [PATCH v2 10/10] tcg/optimize: add constant folding for deposit X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Signed-off-by: Aurelien Jarno --- tcg/optimize.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/tcg/optimize.c b/tcg/optimize.c index c8ae50b..35532a1 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -668,6 +668,26 @@ static TCGArg *tcg_constant_folding(TCGContext *s, uint16_t *tcg_opc_ptr, } args += 3; break; + CASE_OP_32_64(deposit): + if (temps[args[1]].state == TCG_TEMP_CONST + && temps[args[2]].state == TCG_TEMP_CONST) { + gen_opc_buf[op_index] = op_to_movi(op); + tmp = ((1ull << args[4]) - 1); + tmp = (temps[args[1]].val & ~(tmp << args[3])) + | ((temps[args[2]].val & tmp) << args[3]); + tcg_opt_gen_movi(gen_args, args[0], tmp); + gen_args += 2; + } else { + reset_temp(args[0]); + gen_args[0] = args[0]; + gen_args[1] = args[1]; + gen_args[2] = args[2]; + gen_args[3] = args[3]; + gen_args[4] = args[4]; + gen_args += 5; + } + args += 5; + break; CASE_OP_32_64(setcond): tmp = do_constant_folding_cond(op, args[1], args[2], args[3]); if (tmp != 2) {