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=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 3B056C2B9F8 for ; Tue, 25 May 2021 15:24:05 +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 93216613AD for ; Tue, 25 May 2021 15:24:04 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 93216613AD 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]:33350 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1llYuZ-0005us-Id for qemu-devel@archiver.kernel.org; Tue, 25 May 2021 11:24:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:58748) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1llYbM-000303-UE for qemu-devel@nongnu.org; Tue, 25 May 2021 11:04:12 -0400 Received: from mail-wr1-x42e.google.com ([2a00:1450:4864:20::42e]:36535) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1llYbD-0004Kb-LG for qemu-devel@nongnu.org; Tue, 25 May 2021 11:04:12 -0400 Received: by mail-wr1-x42e.google.com with SMTP id n4so6680968wrw.3 for ; Tue, 25 May 2021 08:04:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=igTiK/7DuT3/82T1cPrFHUhnuv63jCseDE/qWQ+yLrA=; b=lSKyG7Ys/puwaqA3JdjAeEtHm4zJ6uvJdLoZERugjzVtJbC5bHgbWCUq3EBrhf7lOV dRdXRKZr8L/XpVAT2F9H1G0ZNtcMiAUVliZQY8Tg51r0HOS8CHUT+h/yKHPxn304TVxl +gGYPyy9NwpAyw8iD7UCZdKofqt8kfL2vZPeG75dDtYPTy4X9mbE8IaTyqnJXuTAkhzA mvRifWo2wNAGDO9zIl90RLurJmzIEfWj7AnfJf86V9cwowOwu+oPZCK57fm0CrdcdQD9 ktbe9mdD7J5SZ6ipY2DeY2BWFs5eCR9UwgazvMjUu5JFskRFlT2+JIgBcfij/W6vS0FG ZgUA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=igTiK/7DuT3/82T1cPrFHUhnuv63jCseDE/qWQ+yLrA=; b=XUD0mSnILpa+RUni4rdat3SfQcZtPcMd9DaGoTtlwpdbE5wqx9dZ8BgyO2GCpe0Jaz GCMTTnlwQSBnZTi4nUbzArQSOCkiuGtA4AobSz2FouOfHKMlM04KFzRXZl9xKe3GmWTD r/VB6zxTURc4zszCAhFUatcLj6nacrVSUPsTepq5UVq9Tk1Q4PIZkQAbbS7ZhJ0ydsY8 gEHVaU8MkeKxNb5PMOSIhR3Z/EQu/ysQ0q4eiLtj5LlHynkh4ECwQcYSo0oLOmPCyQRq QbAzooe5Wyl43hQHzEMHbsYmpMGZUdsBrZ4SEdZ9ZjoMBt71lLq+275O1PPWTe6vLmBx okDg== X-Gm-Message-State: AOAM5327kthltXDLHA7r8lRUJnkAChJEcm2uZrqRcIi4ZoJtVNICzarG WH0ERpa7gWhKv2d27N9jxLPzQhzH75gobkze X-Google-Smtp-Source: ABdhPJw6R2/wrVZwK8zgMPxqvi0GXqtoFzatgF7IYFfB3nZsof4K85+ZYPe8cUev25EblsvkuasLKg== X-Received: by 2002:adf:f341:: with SMTP id e1mr26680581wrp.352.1621955040123; Tue, 25 May 2021 08:04:00 -0700 (PDT) Received: from orth.archaic.org.uk (orth.archaic.org.uk. [81.2.115.148]) by smtp.gmail.com with ESMTPSA id q62sm11710284wma.42.2021.05.25.08.03.59 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 25 May 2021 08:03:59 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 037/114] target/arm: Implement SVE2 bitwise shift left long Date: Tue, 25 May 2021 16:02:07 +0100 Message-Id: <20210525150324.32370-38-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210525150324.32370-1-peter.maydell@linaro.org> References: <20210525150324.32370-1-peter.maydell@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2a00:1450:4864:20::42e; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42e.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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson Reviewed-by: Peter Maydell Signed-off-by: Richard Henderson Message-id: 20210525010358.152808-16-richard.henderson@linaro.org Signed-off-by: Peter Maydell --- target/arm/helper-sve.h | 8 ++ target/arm/sve.decode | 8 ++ target/arm/sve_helper.c | 22 +++++ target/arm/translate-sve.c | 159 +++++++++++++++++++++++++++++++++++++ 4 files changed, 197 insertions(+) diff --git a/target/arm/helper-sve.h b/target/arm/helper-sve.h index bf3e533eb4f..740939e7a86 100644 --- a/target/arm/helper-sve.h +++ b/target/arm/helper-sve.h @@ -2364,3 +2364,11 @@ DEF_HELPER_FLAGS_4(sve2_umull_zzz_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(sve2_pmull_h, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) DEF_HELPER_FLAGS_4(sve2_pmull_d, TCG_CALL_NO_RWG, void, ptr, ptr, ptr, i32) + +DEF_HELPER_FLAGS_3(sve2_sshll_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sshll_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_sshll_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32) + +DEF_HELPER_FLAGS_3(sve2_ushll_h, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_ushll_s, TCG_CALL_NO_RWG, void, ptr, ptr, i32) +DEF_HELPER_FLAGS_3(sve2_ushll_d, TCG_CALL_NO_RWG, void, ptr, ptr, i32) diff --git a/target/arm/sve.decode b/target/arm/sve.decode index 016c15ebb67..a3191eba7bf 100644 --- a/target/arm/sve.decode +++ b/target/arm/sve.decode @@ -1207,3 +1207,11 @@ SMULLB_zzz 01000101 .. 0 ..... 011 100 ..... ..... @rd_rn_rm SMULLT_zzz 01000101 .. 0 ..... 011 101 ..... ..... @rd_rn_rm UMULLB_zzz 01000101 .. 0 ..... 011 110 ..... ..... @rd_rn_rm UMULLT_zzz 01000101 .. 0 ..... 011 111 ..... ..... @rd_rn_rm + +## SVE2 bitwise shift left long + +# Note bit23 == 0 is handled by esz > 0 in do_sve2_shll_tb. +SSHLLB 01000101 .. 0 ..... 1010 00 ..... ..... @rd_rn_tszimm_shl +SSHLLT 01000101 .. 0 ..... 1010 01 ..... ..... @rd_rn_tszimm_shl +USHLLB 01000101 .. 0 ..... 1010 10 ..... ..... @rd_rn_tszimm_shl +USHLLT 01000101 .. 0 ..... 1010 11 ..... ..... @rd_rn_tszimm_shl diff --git a/target/arm/sve_helper.c b/target/arm/sve_helper.c index cfd1a7cb497..79b268cbba5 100644 --- a/target/arm/sve_helper.c +++ b/target/arm/sve_helper.c @@ -1226,6 +1226,28 @@ DO_ZZZ_WTB(sve2_usubw_d, uint64_t, uint32_t, , H1_4, DO_SUB) #undef DO_ZZZ_WTB +#define DO_ZZI_SHLL(NAME, TYPEW, TYPEN, HW, HN) \ +void HELPER(NAME)(void *vd, void *vn, uint32_t desc) \ +{ \ + intptr_t i, opr_sz = simd_oprsz(desc); \ + intptr_t sel = (simd_data(desc) & 1) * sizeof(TYPEN); \ + int shift = simd_data(desc) >> 1; \ + for (i = 0; i < opr_sz; i += sizeof(TYPEW)) { \ + TYPEW nn = *(TYPEN *)(vn + HN(i + sel)); \ + *(TYPEW *)(vd + HW(i)) = nn << shift; \ + } \ +} + +DO_ZZI_SHLL(sve2_sshll_h, int16_t, int8_t, H1_2, H1) +DO_ZZI_SHLL(sve2_sshll_s, int32_t, int16_t, H1_4, H1_2) +DO_ZZI_SHLL(sve2_sshll_d, int64_t, int32_t, , H1_4) + +DO_ZZI_SHLL(sve2_ushll_h, uint16_t, uint8_t, H1_2, H1) +DO_ZZI_SHLL(sve2_ushll_s, uint32_t, uint16_t, H1_4, H1_2) +DO_ZZI_SHLL(sve2_ushll_d, uint64_t, uint32_t, , H1_4) + +#undef DO_ZZI_SHLL + /* Two-operand reduction expander, controlled by a predicate. * The difference between TYPERED and TYPERET has to do with * sign-extension. E.g. for SMAX, TYPERED must be signed, diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index fbdccc1c680..da7308d1afc 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -6071,3 +6071,162 @@ DO_SVE2_ZZZ_WTB(UADDWB, uaddw, false) DO_SVE2_ZZZ_WTB(UADDWT, uaddw, true) DO_SVE2_ZZZ_WTB(USUBWB, usubw, false) DO_SVE2_ZZZ_WTB(USUBWT, usubw, true) + +static void gen_sshll_vec(unsigned vece, TCGv_vec d, TCGv_vec n, int64_t imm) +{ + int top = imm & 1; + int shl = imm >> 1; + int halfbits = 4 << vece; + + if (top) { + if (shl == halfbits) { + TCGv_vec t = tcg_temp_new_vec_matching(d); + tcg_gen_dupi_vec(vece, t, MAKE_64BIT_MASK(halfbits, halfbits)); + tcg_gen_and_vec(vece, d, n, t); + tcg_temp_free_vec(t); + } else { + tcg_gen_sari_vec(vece, d, n, halfbits); + tcg_gen_shli_vec(vece, d, d, shl); + } + } else { + tcg_gen_shli_vec(vece, d, n, halfbits); + tcg_gen_sari_vec(vece, d, d, halfbits - shl); + } +} + +static void gen_ushll_i64(unsigned vece, TCGv_i64 d, TCGv_i64 n, int imm) +{ + int halfbits = 4 << vece; + int top = imm & 1; + int shl = (imm >> 1); + int shift; + uint64_t mask; + + mask = MAKE_64BIT_MASK(0, halfbits); + mask <<= shl; + mask = dup_const(vece, mask); + + shift = shl - top * halfbits; + if (shift < 0) { + tcg_gen_shri_i64(d, n, -shift); + } else { + tcg_gen_shli_i64(d, n, shift); + } + tcg_gen_andi_i64(d, d, mask); +} + +static void gen_ushll16_i64(TCGv_i64 d, TCGv_i64 n, int64_t imm) +{ + gen_ushll_i64(MO_16, d, n, imm); +} + +static void gen_ushll32_i64(TCGv_i64 d, TCGv_i64 n, int64_t imm) +{ + gen_ushll_i64(MO_32, d, n, imm); +} + +static void gen_ushll64_i64(TCGv_i64 d, TCGv_i64 n, int64_t imm) +{ + gen_ushll_i64(MO_64, d, n, imm); +} + +static void gen_ushll_vec(unsigned vece, TCGv_vec d, TCGv_vec n, int64_t imm) +{ + int halfbits = 4 << vece; + int top = imm & 1; + int shl = imm >> 1; + + if (top) { + if (shl == halfbits) { + TCGv_vec t = tcg_temp_new_vec_matching(d); + tcg_gen_dupi_vec(vece, t, MAKE_64BIT_MASK(halfbits, halfbits)); + tcg_gen_and_vec(vece, d, n, t); + tcg_temp_free_vec(t); + } else { + tcg_gen_shri_vec(vece, d, n, halfbits); + tcg_gen_shli_vec(vece, d, d, shl); + } + } else { + if (shl == 0) { + TCGv_vec t = tcg_temp_new_vec_matching(d); + tcg_gen_dupi_vec(vece, t, MAKE_64BIT_MASK(0, halfbits)); + tcg_gen_and_vec(vece, d, n, t); + tcg_temp_free_vec(t); + } else { + tcg_gen_shli_vec(vece, d, n, halfbits); + tcg_gen_shri_vec(vece, d, d, halfbits - shl); + } + } +} + +static bool do_sve2_shll_tb(DisasContext *s, arg_rri_esz *a, + bool sel, bool uns) +{ + static const TCGOpcode sshll_list[] = { + INDEX_op_shli_vec, INDEX_op_sari_vec, 0 + }; + static const TCGOpcode ushll_list[] = { + INDEX_op_shli_vec, INDEX_op_shri_vec, 0 + }; + static const GVecGen2i ops[2][3] = { + { { .fniv = gen_sshll_vec, + .opt_opc = sshll_list, + .fno = gen_helper_sve2_sshll_h, + .vece = MO_16 }, + { .fniv = gen_sshll_vec, + .opt_opc = sshll_list, + .fno = gen_helper_sve2_sshll_s, + .vece = MO_32 }, + { .fniv = gen_sshll_vec, + .opt_opc = sshll_list, + .fno = gen_helper_sve2_sshll_d, + .vece = MO_64 } }, + { { .fni8 = gen_ushll16_i64, + .fniv = gen_ushll_vec, + .opt_opc = ushll_list, + .fno = gen_helper_sve2_ushll_h, + .vece = MO_16 }, + { .fni8 = gen_ushll32_i64, + .fniv = gen_ushll_vec, + .opt_opc = ushll_list, + .fno = gen_helper_sve2_ushll_s, + .vece = MO_32 }, + { .fni8 = gen_ushll64_i64, + .fniv = gen_ushll_vec, + .opt_opc = ushll_list, + .fno = gen_helper_sve2_ushll_d, + .vece = MO_64 } }, + }; + + if (a->esz < 0 || a->esz > 2 || !dc_isar_feature(aa64_sve2, s)) { + return false; + } + if (sve_access_check(s)) { + unsigned vsz = vec_full_reg_size(s); + tcg_gen_gvec_2i(vec_full_reg_offset(s, a->rd), + vec_full_reg_offset(s, a->rn), + vsz, vsz, (a->imm << 1) | sel, + &ops[uns][a->esz]); + } + return true; +} + +static bool trans_SSHLLB(DisasContext *s, arg_rri_esz *a) +{ + return do_sve2_shll_tb(s, a, false, false); +} + +static bool trans_SSHLLT(DisasContext *s, arg_rri_esz *a) +{ + return do_sve2_shll_tb(s, a, true, false); +} + +static bool trans_USHLLB(DisasContext *s, arg_rri_esz *a) +{ + return do_sve2_shll_tb(s, a, false, true); +} + +static bool trans_USHLLT(DisasContext *s, arg_rri_esz *a) +{ + return do_sve2_shll_tb(s, a, true, true); +} -- 2.20.1