From patchwork Thu Apr 28 09:46:59 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Hildenbrand X-Patchwork-Id: 12830340 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B4157C433EF for ; Thu, 28 Apr 2022 09:59:34 +0000 (UTC) Received: from localhost ([::1]:60246 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nk0vt-0000Wz-ET for qemu-devel@archiver.kernel.org; Thu, 28 Apr 2022 05:59:33 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38504) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nk0kE-00037W-Mt for qemu-devel@nongnu.org; Thu, 28 Apr 2022 05:47:32 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]:57500) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nk0kD-0008Hr-0w for qemu-devel@nongnu.org; Thu, 28 Apr 2022 05:47:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1651139248; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=J0R1d6xPqJ2cWgHOjjCk/IqIj6mVNT2ja7ggnaG3tCU=; b=Zlvayfsyjj/tzl9tFlTs7qztYWqNn1t7wmo5fKFHdWRzxabn86oC2PmldSVPL2+fk2nPKg 7VK/v4jcF/JEGBZlD2GgfIav8E270s+2XRXSnhdBbWzn6WEHpIHe6qz4R3LsQzH1BYW4c5 FY4maRWcozRKCVNJvJ7C+BDiXMgAIjM= Received: from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-569-T6sitXuJOyyQAS6bB12RMQ-1; Thu, 28 Apr 2022 05:47:22 -0400 X-MC-Unique: T6sitXuJOyyQAS6bB12RMQ-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.rdu2.redhat.com [10.11.54.1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id A8DB9381078B; Thu, 28 Apr 2022 09:47:21 +0000 (UTC) Received: from t480s.redhat.com (unknown [10.39.194.113]) by smtp.corp.redhat.com (Postfix) with ESMTP id A3ADB40CFD16; Thu, 28 Apr 2022 09:47:19 +0000 (UTC) From: David Hildenbrand To: qemu-devel@nongnu.org Subject: [PATCH v6 04/13] tcg: Implement tcg_gen_{h,w}swap_{i32,i64} Date: Thu, 28 Apr 2022 11:46:59 +0200 Message-Id: <20220428094708.84835-5-david@redhat.com> In-Reply-To: <20220428094708.84835-1-david@redhat.com> References: <20220428094708.84835-1-david@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.11.54.1 Received-SPF: pass client-ip=170.10.129.124; envelope-from=david@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , David Hildenbrand , Cornelia Huck , Richard Henderson , Eric Farman , David Miller , Halil Pasic , qemu-s390x@nongnu.org, Christian Borntraeger Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson Swap half-words (16-bit) and words (32-bit) within a larger value. Mirrors functions of the same names within include/qemu/bitops.h. Signed-off-by: Richard Henderson Reviewed-by: David Miller Reviewed-by: David Hildenbrand Signed-off-by: David Hildenbrand --- include/tcg/tcg-op.h | 6 ++++++ tcg/tcg-op.c | 30 ++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/include/tcg/tcg-op.h b/include/tcg/tcg-op.h index caa0a63612..b09b8b4a05 100644 --- a/include/tcg/tcg-op.h +++ b/include/tcg/tcg-op.h @@ -332,6 +332,7 @@ void tcg_gen_ext8u_i32(TCGv_i32 ret, TCGv_i32 arg); void tcg_gen_ext16u_i32(TCGv_i32 ret, TCGv_i32 arg); void tcg_gen_bswap16_i32(TCGv_i32 ret, TCGv_i32 arg, int flags); void tcg_gen_bswap32_i32(TCGv_i32 ret, TCGv_i32 arg); +void tcg_gen_hswap_i32(TCGv_i32 ret, TCGv_i32 arg); void tcg_gen_smin_i32(TCGv_i32, TCGv_i32 arg1, TCGv_i32 arg2); void tcg_gen_smax_i32(TCGv_i32, TCGv_i32 arg1, TCGv_i32 arg2); void tcg_gen_umin_i32(TCGv_i32, TCGv_i32 arg1, TCGv_i32 arg2); @@ -531,6 +532,8 @@ void tcg_gen_ext32u_i64(TCGv_i64 ret, TCGv_i64 arg); void tcg_gen_bswap16_i64(TCGv_i64 ret, TCGv_i64 arg, int flags); void tcg_gen_bswap32_i64(TCGv_i64 ret, TCGv_i64 arg, int flags); void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg); +void tcg_gen_hswap_i64(TCGv_i64 ret, TCGv_i64 arg); +void tcg_gen_wswap_i64(TCGv_i64 ret, TCGv_i64 arg); void tcg_gen_smin_i64(TCGv_i64, TCGv_i64 arg1, TCGv_i64 arg2); void tcg_gen_smax_i64(TCGv_i64, TCGv_i64 arg1, TCGv_i64 arg2); void tcg_gen_umin_i64(TCGv_i64, TCGv_i64 arg1, TCGv_i64 arg2); @@ -1077,6 +1080,8 @@ void tcg_gen_stl_vec(TCGv_vec r, TCGv_ptr base, TCGArg offset, TCGType t); #define tcg_gen_bswap32_tl tcg_gen_bswap32_i64 #define tcg_gen_bswap64_tl tcg_gen_bswap64_i64 #define tcg_gen_bswap_tl tcg_gen_bswap64_i64 +#define tcg_gen_hswap_tl tcg_gen_hswap_i64 +#define tcg_gen_wswap_tl tcg_gen_wswap_i64 #define tcg_gen_concat_tl_i64 tcg_gen_concat32_i64 #define tcg_gen_extr_i64_tl tcg_gen_extr32_i64 #define tcg_gen_andc_tl tcg_gen_andc_i64 @@ -1192,6 +1197,7 @@ void tcg_gen_stl_vec(TCGv_vec r, TCGv_ptr base, TCGArg offset, TCGType t); #define tcg_gen_bswap16_tl tcg_gen_bswap16_i32 #define tcg_gen_bswap32_tl(D, S, F) tcg_gen_bswap32_i32(D, S) #define tcg_gen_bswap_tl tcg_gen_bswap32_i32 +#define tcg_gen_hswap_tl tcg_gen_hswap_i32 #define tcg_gen_concat_tl_i64 tcg_gen_concat_i32_i64 #define tcg_gen_extr_i64_tl tcg_gen_extr_i64_i32 #define tcg_gen_andc_tl tcg_gen_andc_i32 diff --git a/tcg/tcg-op.c b/tcg/tcg-op.c index 5d48537927..019fab00cc 100644 --- a/tcg/tcg-op.c +++ b/tcg/tcg-op.c @@ -1056,6 +1056,12 @@ void tcg_gen_bswap32_i32(TCGv_i32 ret, TCGv_i32 arg) } } +void tcg_gen_hswap_i32(TCGv_i32 ret, TCGv_i32 arg) +{ + /* Swapping 2 16-bit elements is a rotate. */ + tcg_gen_rotli_i32(ret, arg, 16); +} + void tcg_gen_smin_i32(TCGv_i32 ret, TCGv_i32 a, TCGv_i32 b) { tcg_gen_movcond_i32(TCG_COND_LT, ret, a, b, a, b); @@ -1792,6 +1798,30 @@ void tcg_gen_bswap64_i64(TCGv_i64 ret, TCGv_i64 arg) } } +void tcg_gen_hswap_i64(TCGv_i64 ret, TCGv_i64 arg) +{ + uint64_t m = 0x0000ffff0000ffffull; + TCGv_i64 t0 = tcg_temp_new_i64(); + TCGv_i64 t1 = tcg_temp_new_i64(); + + /* See include/qemu/bitops.h, hswap64. */ + tcg_gen_rotli_i64(t1, arg, 32); + tcg_gen_andi_i64(t0, t1, m); + tcg_gen_shli_i64(t0, t0, 16); + tcg_gen_shri_i64(t1, t1, 16); + tcg_gen_andi_i64(t1, t1, m); + tcg_gen_or_i64(ret, t0, t1); + + tcg_temp_free_i64(t0); + tcg_temp_free_i64(t1); +} + +void tcg_gen_wswap_i64(TCGv_i64 ret, TCGv_i64 arg) +{ + /* Swapping 2 32-bit elements is a rotate. */ + tcg_gen_rotli_i64(ret, arg, 32); +} + void tcg_gen_not_i64(TCGv_i64 ret, TCGv_i64 arg) { if (TCG_TARGET_REG_BITS == 32) {