From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 99614C433FE for ; Mon, 20 Sep 2021 14:09:58 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 61E9F610CE for ; Mon, 20 Sep 2021 14:09:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 61E9F610CE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=xen0n.name Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:51186 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mSJzZ-0004ZT-Cg for qemu-devel@archiver.kernel.org; Mon, 20 Sep 2021 10:09:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:49284) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mSEOn-0007he-7b for qemu-devel@nongnu.org; Mon, 20 Sep 2021 04:11:37 -0400 Received: from [115.28.160.31] (port=35554 helo=mailbox.box.xen0n.name) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mSEOj-0005Df-49 for qemu-devel@nongnu.org; Mon, 20 Sep 2021 04:11:37 -0400 Received: from ld50.lan (unknown [101.88.25.142]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by mailbox.box.xen0n.name (Postfix) with ESMTPSA id 3E33F63400; Mon, 20 Sep 2021 16:05:50 +0800 (CST) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=xen0n.name; s=mail; t=1632125150; bh=CNbYzy9iyb7PL6X4R0+qyf9GBLd1LhfpCtVtZ5W5r4s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cU/fiHayVN7GSYDjEURZB/xv0YGuvNFy1jnQizoma4Gv19yi1nsnfSrEjon+QVQML k7sUeR0aiMa02mQE3+3R3pPcuB2dMh3IpVQlJ8bYtYhBQN7qRhNFvfV5E0HSMjBiw0 mh2TWhPOkyFm/YnjEZ1LivSU0PTuY0EWg97Y04aY= From: WANG Xuerui To: qemu-devel@nongnu.org Subject: [PATCH 15/30] tcg/loongarch: Implement clz/ctz ops Date: Mon, 20 Sep 2021 16:04:36 +0800 Message-Id: <20210920080451.408655-16-git@xen0n.name> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210920080451.408655-1-git@xen0n.name> References: <20210920080451.408655-1-git@xen0n.name> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 115.28.160.31 (failed) Received-SPF: pass client-ip=115.28.160.31; envelope-from=git@xen0n.name; helo=mailbox.box.xen0n.name X-Spam_score_int: -12 X-Spam_score: -1.3 X-Spam_bar: - X-Spam_report: (-1.3 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Mon, 20 Sep 2021 09:57:24 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: WANG Xuerui Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: WANG Xuerui --- tcg/loongarch/tcg-target-con-set.h | 1 + tcg/loongarch/tcg-target.c.inc | 31 ++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/tcg/loongarch/tcg-target-con-set.h b/tcg/loongarch/tcg-target-con-set.h index b0751c4bb0..417c97549a 100644 --- a/tcg/loongarch/tcg-target-con-set.h +++ b/tcg/loongarch/tcg-target-con-set.h @@ -18,4 +18,5 @@ C_O0_I1(r) C_O1_I1(r, r) C_O1_I2(r, r, r) C_O1_I2(r, r, rU) +C_O1_I2(r, r, rZ) C_O1_I2(r, 0, rZ) diff --git a/tcg/loongarch/tcg-target.c.inc b/tcg/loongarch/tcg-target.c.inc index d617b833e5..e817964a7e 100644 --- a/tcg/loongarch/tcg-target.c.inc +++ b/tcg/loongarch/tcg-target.c.inc @@ -362,6 +362,17 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg ret, TCGReg arg) tcg_out_opc_addi_w(s, ret, arg, 0); } +static void tcg_out_clzctz(TCGContext *s, LoongArchInsn opc, + TCGReg a0, TCGReg a1, TCGReg a2) +{ + /* all clz/ctz insns belong to DJ-format */ + tcg_out32(s, encode_dj_insn(opc, TCG_REG_TMP0, a1)); + /* a0 = a1 ? REG_TMP0 : a2 */ + tcg_out_opc_maskeqz(s, TCG_REG_TMP0, TCG_REG_TMP0, a1); + tcg_out_opc_masknez(s, a0, a2, a1); + tcg_out_opc_or(s, a0, TCG_REG_TMP0, a0); +} + /* * Entry-points */ @@ -488,6 +499,20 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, tcg_out_opc_revb_d(s, a0, a1); break; + case INDEX_op_clz_i32: + tcg_out_clzctz(s, OPC_CLZ_W, a0, a1, a2); + break; + case INDEX_op_clz_i64: + tcg_out_clzctz(s, OPC_CLZ_D, a0, a1, a2); + break; + + case INDEX_op_ctz_i32: + tcg_out_clzctz(s, OPC_CTZ_W, a0, a1, a2); + break; + case INDEX_op_ctz_i64: + tcg_out_clzctz(s, OPC_CTZ_D, a0, a1, a2); + break; + case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */ case INDEX_op_mov_i64: default: @@ -541,6 +566,12 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op) /* LoongArch reg-imm bitops have their imms ZERO-extended */ return C_O1_I2(r, r, rU); + case INDEX_op_clz_i32: + case INDEX_op_clz_i64: + case INDEX_op_ctz_i32: + case INDEX_op_ctz_i64: + return C_O1_I2(r, r, rZ); + case INDEX_op_deposit_i32: case INDEX_op_deposit_i64: /* Must deposit into the same register as input */ -- 2.33.0