From patchwork Mon Feb 18 20:21:05 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 221555 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 A7A382C0089 for ; Tue, 19 Feb 2013 10:20:49 +1100 (EST) Received: from localhost ([::1]:34259 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U7XEM-0006jD-6F for incoming@patchwork.ozlabs.org; Mon, 18 Feb 2013 15:22:30 -0500 Received: from eggs.gnu.org ([208.118.235.92]:38026) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U7XDg-0005ET-BM for qemu-devel@nongnu.org; Mon, 18 Feb 2013 15:21:51 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1U7XDd-00027J-CZ for qemu-devel@nongnu.org; Mon, 18 Feb 2013 15:21:48 -0500 Received: from mail-pa0-f42.google.com ([209.85.220.42]:47950) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1U7XDd-000274-4d for qemu-devel@nongnu.org; Mon, 18 Feb 2013 15:21:45 -0500 Received: by mail-pa0-f42.google.com with SMTP id kq12so3019338pab.15 for ; Mon, 18 Feb 2013 12:21:44 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:sender:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=5v1+G9gQ2hUc08IrsmNrirBRhPXQTdi7mXYvG/rpIzM=; b=LkcnF8gEyVop8X4pogEEH9WgbVifnkR1VCAaEt8HMwlB4BcEp7GTljFpcWqqBiRVTx 73QpvunS+NLJtdpL6sOidFtjsRm7WpA2X+XKiiKWIMnJaOJiXfj9ZK/2xqYuh+/5ZKUF xuI41wa6F1V0SwrLtqfJfXkgKJ90rrPPk1vyRB3VT8n8giIkXOrB7xJ7vJHsm9llpiMx dLxo9XZzt3dr2IR+pHbBOdz+kDr/b9Lx/vnsHz093P9GsW8CL+x+oS/x9/CIwYDzzM7a b4BKzpnfotpoBf2gquses4/rWi/KKxHSCCgc4KiNXDee2KRei4a2m7q1z46LxP6Tjaz/ BnIQ== X-Received: by 10.66.86.101 with SMTP id o5mr39193620paz.15.1361218904286; Mon, 18 Feb 2013 12:21:44 -0800 (PST) Received: from pebble.twiddle.net (50-194-63-110-static.hfc.comcastbusiness.net. [50.194.63.110]) by mx.google.com with ESMTPS id z6sm78739077pav.3.2013.02.18.12.21.42 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Mon, 18 Feb 2013 12:21:43 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Date: Mon, 18 Feb 2013 12:21:05 -0800 Message-Id: <1361218873-1754-17-git-send-email-rth@twiddle.net> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1361218873-1754-1-git-send-email-rth@twiddle.net> References: <1361218873-1754-1-git-send-email-rth@twiddle.net> X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [fuzzy] X-Received-From: 209.85.220.42 Cc: av1474@comtv.ru Subject: [Qemu-devel] [PATCH 16/24] tcg-ppc64: Implement bswap16 and bswap32 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: Richard Henderson --- tcg/ppc64/tcg-target.c | 43 +++++++++++++++++++++++++++++++++++++++++++ tcg/ppc64/tcg-target.h | 18 ++++++++++-------- 2 files changed, 53 insertions(+), 8 deletions(-) diff --git a/tcg/ppc64/tcg-target.c b/tcg/ppc64/tcg-target.c index a08ad90..723cc77 100644 --- a/tcg/ppc64/tcg-target.c +++ b/tcg/ppc64/tcg-target.c @@ -1668,6 +1668,44 @@ static void tcg_out_op (TCGContext *s, TCGOpcode opc, const TCGArg *args, const_args[2]); break; + case INDEX_op_bswap16_i32: + case INDEX_op_bswap16_i64: + a0 = args[0], a1 = args[1]; + /* a1 = abcd */ + if (a0 != a1) { + /* a0 = (a1 r<< 24) & 0xff # 000c */ + tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31); + /* a0 = (a0 & ~0xff00) | (a1 r<< 8) & 0xff00 # 00dc */ + tcg_out_rlw(s, RLWIMI, a0, a1, 8, 16, 23); + } else { + /* r0 = (a1 r<< 8) & 0xff00 # 00d0 */ + tcg_out_rlw(s, RLWINM, 0, a1, 8, 16, 23); + /* a0 = (a1 r<< 24) & 0xff # 000c */ + tcg_out_rlw(s, RLWINM, a0, a1, 24, 24, 31); + /* a0 = a0 | r0 # 00dc */ + tcg_out32(s, OR | SAB(0, a0, a0)); + } + break; + + case INDEX_op_bswap32_i32: + case INDEX_op_bswap32_i64: + /* Stolen from gcc's builtin_bswap32 */ + a1 = args[1]; + a0 = args[0] == a1 ? 0 : args[0]; + + /* a1 = args[1] # abcd */ + /* a0 = rotate_left (a1, 8) # bcda */ + tcg_out_rlw(s, RLWINM, a0, a1, 8, 0, 31); + /* a0 = (a0 & ~0xff000000) | ((a1 r<< 24) & 0xff000000) # dcda */ + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 0, 7); + /* a0 = (a0 & ~0x0000ff00) | ((a1 r<< 24) & 0x0000ff00) # dcba */ + tcg_out_rlw(s, RLWIMI, a0, a1, 24, 16, 23); + + if (!a0) { + tcg_out_mov(s, TCG_TYPE_I64, args[0], a0); + } + break; + default: tcg_dump_ops (s); tcg_abort (); @@ -1774,6 +1812,11 @@ static const TCGTargetOpDef ppc_op_defs[] = { { INDEX_op_setcond_i32, { "r", "r", "ri" } }, { INDEX_op_setcond_i64, { "r", "r", "ri" } }, + { INDEX_op_bswap16_i32, { "r", "r" } }, + { INDEX_op_bswap16_i64, { "r", "r" } }, + { INDEX_op_bswap32_i32, { "r", "r" } }, + { INDEX_op_bswap32_i64, { "r", "r" } }, + { -1 }, }; diff --git a/tcg/ppc64/tcg-target.h b/tcg/ppc64/tcg-target.h index 9e97985..9e76e77 100644 --- a/tcg/ppc64/tcg-target.h +++ b/tcg/ppc64/tcg-target.h @@ -67,15 +67,19 @@ typedef enum { #define TCG_TARGET_STACK_ALIGN 16 #define TCG_TARGET_CALL_STACK_OFFSET 48 +/* optional instructions automatically implemented */ +#define TCG_TARGET_HAS_ext8u_i32 0 /* andi */ +#define TCG_TARGET_HAS_ext16u_i32 0 +#define TCG_TARGET_HAS_ext8u_i64 0 +#define TCG_TARGET_HAS_ext16u_i64 0 + /* optional instructions */ #define TCG_TARGET_HAS_div_i32 1 #define TCG_TARGET_HAS_rot_i32 1 #define TCG_TARGET_HAS_ext8s_i32 1 #define TCG_TARGET_HAS_ext16s_i32 1 -#define TCG_TARGET_HAS_ext8u_i32 0 -#define TCG_TARGET_HAS_ext16u_i32 0 -#define TCG_TARGET_HAS_bswap16_i32 0 -#define TCG_TARGET_HAS_bswap32_i32 0 +#define TCG_TARGET_HAS_bswap16_i32 1 +#define TCG_TARGET_HAS_bswap32_i32 1 #define TCG_TARGET_HAS_not_i32 1 #define TCG_TARGET_HAS_neg_i32 1 #define TCG_TARGET_HAS_andc_i32 0 @@ -91,11 +95,9 @@ typedef enum { #define TCG_TARGET_HAS_ext8s_i64 1 #define TCG_TARGET_HAS_ext16s_i64 1 #define TCG_TARGET_HAS_ext32s_i64 1 -#define TCG_TARGET_HAS_ext8u_i64 0 -#define TCG_TARGET_HAS_ext16u_i64 0 #define TCG_TARGET_HAS_ext32u_i64 1 -#define TCG_TARGET_HAS_bswap16_i64 0 -#define TCG_TARGET_HAS_bswap32_i64 0 +#define TCG_TARGET_HAS_bswap16_i64 1 +#define TCG_TARGET_HAS_bswap32_i64 1 #define TCG_TARGET_HAS_bswap64_i64 0 #define TCG_TARGET_HAS_not_i64 1 #define TCG_TARGET_HAS_neg_i64 1