From patchwork Tue May 25 01:02:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 12277463 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,URIBL_BLOCKED,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 490D8C2B9F7 for ; Tue, 25 May 2021 01:25:59 +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 B5399613F6 for ; Tue, 25 May 2021 01:25:58 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B5399613F6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:37578 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1llLpV-0007xj-Pl for qemu-devel@archiver.kernel.org; Mon, 24 May 2021 21:25:57 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:54074) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1llLV1-00020D-Ub for qemu-devel@nongnu.org; Mon, 24 May 2021 21:04:47 -0400 Received: from mail-pg1-x531.google.com ([2607:f8b0:4864:20::531]:34553) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1llLUX-0001py-FH for qemu-devel@nongnu.org; Mon, 24 May 2021 21:04:47 -0400 Received: by mail-pg1-x531.google.com with SMTP id l70so21412748pga.1 for ; Mon, 24 May 2021 18:04:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=/gvHZOzTj+xrZjcBXR64cEcKDu6e++bnkbmWseU6CSo=; b=CoJ7ofIyzW+xe7CmsIEOlEMaDl5ncxXEReQDcPZOLCcVoo6teXbZCEQ7iM2rAeprKc omZA+dMBVe2FNQmbsNkA2BHZBcywCGgTGXtOoiCx/sJnb5XEHA3juXkWMIfqV9Rhc2eT WJ5ouHlrzH7QuQ4uHksaeeT9bmz4NJH5ImfeB43nnU59t2ItrWd3g/wfOIRf+dKqrOPz ClRYtNHp25X2824HbVKPTgPobrSQ7/uf+d8KABdBGPPIZ8uf/3aE0eulxfvK2Jco5MMR 8wtq/tsqSExlTWitkRYbd5Iuf8jQDyvW5fE7puLKsEAlMhpcM3oTIqWkLCZ7xjW/8pZL jy4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=/gvHZOzTj+xrZjcBXR64cEcKDu6e++bnkbmWseU6CSo=; b=H6XtSL+t/xITZYCXW/InzaaCj9WjfqLMGIy5KeswGmG4OB+xXhWkT9iH6DoKJYSGMp xDB3CFE0U/J3IAZaZKS1ko5HgGzRHkca4lwTkksRt2+GQ5vOHe+1KjisN+C4sE4Pov9H vwVN46yYY2HT+hmTxza0gvCMLFcu57xXiB53m6+J6u3xaJRe9S7w6CUe2bkz/MXQVl59 9tknXrAZU93NteUpTjjdiwaqEg3c6CsHEymtq815StReI0/rhKCTvN38k8AnuZN6DPgl LKsc0sN8Ex/u2NjM6ViJY2pTOQRjtgASJMbU+iGwLMB3tVeNVv8nDh84iWDK4Cndt6bN gdOg== X-Gm-Message-State: AOAM532EIvO9DMBqnS+3F9vG/Q2Rd+cRtjshzI+go16387290C9+z20K 0wxxm0ESAF5Yy/mjgwZBCdPH72GT5FpBlA== X-Google-Smtp-Source: ABdhPJxTNKQtLGXHWbXYVcGQW0KjCsW9fn0vX1bXqsFhtsvDkPQzH6OctNaJOgC9eePb9/5Za3tqgg== X-Received: by 2002:a63:7158:: with SMTP id b24mr16175334pgn.310.1621904656127; Mon, 24 May 2021 18:04:16 -0700 (PDT) Received: from localhost.localdomain (174-21-70-228.tukw.qwest.net. [174.21.70.228]) by smtp.gmail.com with ESMTPSA id b1sm13742645pgf.84.2021.05.24.18.04.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 May 2021 18:04:15 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v7 27/92] target/arm: Implement SVE2 SQSHRUN, SQRSHRUN Date: Mon, 24 May 2021 18:02:53 -0700 Message-Id: <20210525010358.152808-28-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210525010358.152808-1-richard.henderson@linaro.org> References: <20210525010358.152808-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::531; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x531.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: Peter Maydell , qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson --- target/arm/helper-sve.h | 16 +++++++ target/arm/sve.decode | 4 ++ target/arm/sve_helper.c | 35 ++++++++++++++ target/arm/translate-sve.c | 98 ++++++++++++++++++++++++++++++++++++++ 4 files changed, 153 insertions(+) diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h index 2b2ebea631..2e80d9d27b 100644 --- a/target/arm/helper-sve.h +++ b/target/arm/helper-sve.h @@ -2460,6 +2460,22 @@ DEF_HELPER_FLAGS_3(sve2_rshrnt_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32) DEF_HELPER_FLAGS_3(sve2_rshrnt_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32) DEF_HELPER_FLAGS_3(sve2_rshrnt_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqshrunb_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqshrunb_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqshrunb_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32) + +DEF_HELPER_FLAGS_3(sve2_sqshrunt_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqshrunt_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqshrunt_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32) + +DEF_HELPER_FLAGS_3(sve2_sqrshrunb_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqrshrunb_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqrshrunb_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32) + +DEF_HELPER_FLAGS_3(sve2_sqrshrunt_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqrshrunt_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sqrshrunt_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32) + DEF_HELPER_FLAGS_6(sve2_faddp_zpzz_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_6(sve2_faddp_zpzz_s, TCG_CALL_NO_RWG, diff --git a/target/arm/sve.decode b/target/arm/sve.decode index 169486ecb2..18faa900ca 100644 --- a/target/arm/sve.decode +++ b/target/arm/sve.decode @@ -1288,6 +1288,10 @@ SQXTUNT 01000101 .. 1 ..... 010 101 ..... ..... @rd_rn_tszimm_shl ## SVE2 bitwise shift right narrow # Bit 23 == 0 is handled by esz > 0 in the translator. +SQSHRUNB 01000101 .. 1 ..... 00 0000 ..... ..... @rd_rn_tszimm_shr +SQSHRUNT 01000101 .. 1 ..... 00 0001 ..... ..... @rd_rn_tszimm_shr +SQRSHRUNB 01000101 .. 1 ..... 00 0010 ..... ..... @rd_rn_tszimm_shr +SQRSHRUNT 01000101 .. 1 ..... 00 0011 ..... ..... @rd_rn_tszimm_shr SHRNB 01000101 .. 1 ..... 00 0100 ..... ..... @rd_rn_tszimm_shr SHRNT 01000101 .. 1 ..... 00 0101 ..... ..... @rd_rn_tszimm_shr RSHRNB 01000101 .. 1 ..... 00 0110 ..... ..... @rd_rn_tszimm_shr diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c index 8fd61e37f9..b304ca19e8 100644 --- a/target/arm/sve_helper.c +++ b/target/arm/sve_helper.c @@ -1879,6 +1879,16 @@ static inline uint64_t do_urshr(uint64_t x, unsigned sh) } } +static inline int64_t do_srshr(int64_t x, unsigned sh) +{ + if (likely(sh < 64)) { + return (x >> sh) + ((x >> (sh - 1)) & 1); + } else { + /* Rounding the sign bit always produces 0. */ + return 0; + } +} + DO_ZPZI(sve_asr_zpzi_b, int8_t, H1, DO_SHR) DO_ZPZI(sve_asr_zpzi_h, int16_t, H1_2, DO_SHR) DO_ZPZI(sve_asr_zpzi_s, int32_t, H1_4, DO_SHR) @@ -1941,6 +1951,31 @@ DO_SHRNT(sve2_rshrnt_h, uint16_t, uint8_t, H1_2, H1, do_urshr) DO_SHRNT(sve2_rshrnt_s, uint32_t, uint16_t, H1_4, H1_2, do_urshr) DO_SHRNT(sve2_rshrnt_d, uint64_t, uint32_t, , H1_4, do_urshr) +#define DO_SQSHRUN_H(x, sh) do_sat_bhs((int64_t)(x) >> sh, 0, UINT8_MAX) +#define DO_SQSHRUN_S(x, sh) do_sat_bhs((int64_t)(x) >> sh, 0, UINT16_MAX) +#define DO_SQSHRUN_D(x, sh) \ + do_sat_bhs((int64_t)(x) >> (sh < 64 ? sh : 63), 0, UINT32_MAX) + +DO_SHRNB(sve2_sqshrunb_h, int16_t, uint8_t, DO_SQSHRUN_H) +DO_SHRNB(sve2_sqshrunb_s, int32_t, uint16_t, DO_SQSHRUN_S) +DO_SHRNB(sve2_sqshrunb_d, int64_t, uint32_t, DO_SQSHRUN_D) + +DO_SHRNT(sve2_sqshrunt_h, int16_t, uint8_t, H1_2, H1, DO_SQSHRUN_H) +DO_SHRNT(sve2_sqshrunt_s, int32_t, uint16_t, H1_4, H1_2, DO_SQSHRUN_S) +DO_SHRNT(sve2_sqshrunt_d, int64_t, uint32_t, , H1_4, DO_SQSHRUN_D) + +#define DO_SQRSHRUN_H(x, sh) do_sat_bhs(do_srshr(x, sh), 0, UINT8_MAX) +#define DO_SQRSHRUN_S(x, sh) do_sat_bhs(do_srshr(x, sh), 0, UINT16_MAX) +#define DO_SQRSHRUN_D(x, sh) do_sat_bhs(do_srshr(x, sh), 0, UINT32_MAX) + +DO_SHRNB(sve2_sqrshrunb_h, int16_t, uint8_t, DO_SQRSHRUN_H) +DO_SHRNB(sve2_sqrshrunb_s, int32_t, uint16_t, DO_SQRSHRUN_S) +DO_SHRNB(sve2_sqrshrunb_d, int64_t, uint32_t, DO_SQRSHRUN_D) + +DO_SHRNT(sve2_sqrshrunt_h, int16_t, uint8_t, H1_2, H1, DO_SQRSHRUN_H) +DO_SHRNT(sve2_sqrshrunt_s, int32_t, uint16_t, H1_4, H1_2, DO_SQRSHRUN_S) +DO_SHRNT(sve2_sqrshrunt_d, int64_t, uint32_t, , H1_4, DO_SQRSHRUN_D) + #undef DO_SHRNB #undef DO_SHRNT diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index e072f8a2cf..36986b6e87 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -6858,6 +6858,104 @@ static bool trans_RSHRNT(DisasContext *s, arg_rri_esz *a) return do_sve2_shr_narrow(s, a, ops); } +static void gen_sqshrunb_vec(unsigned vece, TCGv_vec d, + TCGv_vec n, int64_t shr) +{ + TCGv_vec t = tcg_temp_new_vec_matching(d); + int halfbits = 4 << vece; + + tcg_gen_sari_vec(vece, n, n, shr); + tcg_gen_dupi_vec(vece, t, 0); + tcg_gen_smax_vec(vece, n, n, t); + tcg_gen_dupi_vec(vece, t, MAKE_64BIT_MASK(0, halfbits)); + tcg_gen_umin_vec(vece, d, n, t); + tcg_temp_free_vec(t); +} + +static bool trans_SQSHRUNB(DisasContext *s, arg_rri_esz *a) +{ + static const TCGOpcode vec_list[] = { + INDEX_op_sari_vec, INDEX_op_smax_vec, INDEX_op_umin_vec, 0 + }; + static const GVecGen2i ops[3] = { + { .fniv = gen_sqshrunb_vec, + .opt_opc = vec_list, + .fno = gen_helper_sve2_sqshrunb_h, + .vece = MO_16 }, + { .fniv = gen_sqshrunb_vec, + .opt_opc = vec_list, + .fno = gen_helper_sve2_sqshrunb_s, + .vece = MO_32 }, + { .fniv = gen_sqshrunb_vec, + .opt_opc = vec_list, + .fno = gen_helper_sve2_sqshrunb_d, + .vece = MO_64 }, + }; + return do_sve2_shr_narrow(s, a, ops); +} + +static void gen_sqshrunt_vec(unsigned vece, TCGv_vec d, + TCGv_vec n, int64_t shr) +{ + TCGv_vec t = tcg_temp_new_vec_matching(d); + int halfbits = 4 << vece; + + tcg_gen_sari_vec(vece, n, n, shr); + tcg_gen_dupi_vec(vece, t, 0); + tcg_gen_smax_vec(vece, n, n, t); + tcg_gen_dupi_vec(vece, t, MAKE_64BIT_MASK(0, halfbits)); + tcg_gen_umin_vec(vece, n, n, t); + tcg_gen_shli_vec(vece, n, n, halfbits); + tcg_gen_bitsel_vec(vece, d, t, d, n); + tcg_temp_free_vec(t); +} + +static bool trans_SQSHRUNT(DisasContext *s, arg_rri_esz *a) +{ + static const TCGOpcode vec_list[] = { + INDEX_op_shli_vec, INDEX_op_sari_vec, + INDEX_op_smax_vec, INDEX_op_umin_vec, 0 + }; + static const GVecGen2i ops[3] = { + { .fniv = gen_sqshrunt_vec, + .opt_opc = vec_list, + .load_dest = true, + .fno = gen_helper_sve2_sqshrunt_h, + .vece = MO_16 }, + { .fniv = gen_sqshrunt_vec, + .opt_opc = vec_list, + .load_dest = true, + .fno = gen_helper_sve2_sqshrunt_s, + .vece = MO_32 }, + { .fniv = gen_sqshrunt_vec, + .opt_opc = vec_list, + .load_dest = true, + .fno = gen_helper_sve2_sqshrunt_d, + .vece = MO_64 }, + }; + return do_sve2_shr_narrow(s, a, ops); +} + +static bool trans_SQRSHRUNB(DisasContext *s, arg_rri_esz *a) +{ + static const GVecGen2i ops[3] = { + { .fno = gen_helper_sve2_sqrshrunb_h }, + { .fno = gen_helper_sve2_sqrshrunb_s }, + { .fno = gen_helper_sve2_sqrshrunb_d }, + }; + return do_sve2_shr_narrow(s, a, ops); +} + +static bool trans_SQRSHRUNT(DisasContext *s, arg_rri_esz *a) +{ + static const GVecGen2i ops[3] = { + { .fno = gen_helper_sve2_sqrshrunt_h }, + { .fno = gen_helper_sve2_sqrshrunt_s }, + { .fno = gen_helper_sve2_sqrshrunt_d }, + }; + return do_sve2_shr_narrow(s, a, ops); +} + static bool do_sve2_zpzz_fp(DisasContext *s, arg_rprr_esz *a, gen_helper_gvec_4_ptr *fn) {