From patchwork Fri May 24 23:20:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 13673821 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 8E346C25B7A for ; Fri, 24 May 2024 23:28:06 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sAeI7-00081j-AR; Fri, 24 May 2024 19:25:39 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sAeHj-0007Jd-UC for qemu-devel@nongnu.org; Fri, 24 May 2024 19:25:19 -0400 Received: from mail-pf1-x435.google.com ([2607:f8b0:4864:20::435]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1sAeHY-0006g0-3Z for qemu-devel@nongnu.org; Fri, 24 May 2024 19:25:13 -0400 Received: by mail-pf1-x435.google.com with SMTP id d2e1a72fcca58-6f4603237e0so2616720b3a.0 for ; Fri, 24 May 2024 16:25:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1716593101; x=1717197901; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=7DNXHK5xqHy7EXmKEeWHyhfM7wr361NDLjffbThLrQE=; b=Nn/qN8AFMuiqv0jOct0ln2BCI6RV2vISDczcfTCmRPUhPXG8I4ZOo2cyte6JI9ndZP Jmllxm8e+7uWHgDFPseowIXXmSsTJnVqpkDy0rbBUyZwpU1bbwQIsMwvga24/ZRVINsG H4ZUkKBKqceIbK/9md/PtvhMyJYFbGpIhp4TX197rilRPwxkRKMGqUy3ZbD9Mp8iCAId DWwBLLUhJQRt3HkuW4aJJucvvvC5xZGgjTQD0j3YBKI3gS99/Tj8LRKDNGIqupLSLxFZ OF9Umdp/pXJR+LNiAy+nmyS1foXLZuvrIU78kqjO6lgPq2eCMkau2gwnqRRkBo+OA11v vZ8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716593101; x=1717197901; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=7DNXHK5xqHy7EXmKEeWHyhfM7wr361NDLjffbThLrQE=; b=FDY7a+9C4kqOX5DWHffJZqFgMhl3qtSV9HrPTkUN7UsowOn7ZgA5EaDNXPmFj30l3T eQRiZbH1VP56Ltxe9d7NHvzVARXdjCdZg9OXRY59TCuLvIEADfvVXoJPxc8ysBiz84IH 6+7orHVZt8n2m4170VO/xsAQbCnJMFryO5GnIVkCCLY3tCIkPYu/3VW+tmsbSk2iFeqy 9LZ+lSq3pi6M9rzB7lmJ5ToJ7yaGpD2D+k31Reloys+Y+HjtiS5N5L0kaTK8dBPiWksa QnAKILeVFttUKd+MueOqcwQNZEhT2vIzPv5qCKxSLWNupsCDSlf94/i0mEPy3HYKorqC 5LLg== X-Gm-Message-State: AOJu0YwiYsZhdd+MPR0GHoUz2cUUgda0qFZ5d9PNqawmEV4MT5nYpSj8 Xo8D6oV7gayU1FiBBIfE5dHLZvTQVQ7b9zdisJPTH7TRdNgb/96puFLJENAJ/kiCJx2JJPql9kG e X-Google-Smtp-Source: AGHT+IF7Ea+l3S5Z94+W2hzYuZ46cZwpdU0sk+fAdA1oeBPkne92CjK9MCJvglufOjOdWvQeqB09AA== X-Received: by 2002:a05:6a00:7c8:b0:6f4:74b8:3d57 with SMTP id d2e1a72fcca58-6f7726eb231mr6708525b3a.7.1716593100890; Fri, 24 May 2024 16:25:00 -0700 (PDT) Received: from stoup.. (174-21-72-5.tukw.qwest.net. [174.21.72.5]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-6f8fbf2cfd1sm1591695b3a.3.2024.05.24.16.24.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 24 May 2024 16:25:00 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH v2 42/67] target/arm: Convert SUQADD, USQADD to decodetree Date: Fri, 24 May 2024 16:20:56 -0700 Message-Id: <20240524232121.284515-43-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240524232121.284515-1-richard.henderson@linaro.org> References: <20240524232121.284515-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::435; envelope-from=richard.henderson@linaro.org; helo=mail-pf1-x435.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=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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org These are faux 2-operand instructions, reading from rd. Sort them next to the other three-operand same insns for clarity. Signed-off-by: Richard Henderson Reviewed-by: Peter Maydell --- target/arm/tcg/a64.decode | 8 +++++ target/arm/tcg/translate-a64.c | 64 ++++------------------------------ 2 files changed, 14 insertions(+), 58 deletions(-) diff --git a/target/arm/tcg/a64.decode b/target/arm/tcg/a64.decode index 19010af03b..7c350ba833 100644 --- a/target/arm/tcg/a64.decode +++ b/target/arm/tcg/a64.decode @@ -45,6 +45,7 @@ @rrr_sd ........ ... rm:5 ...... rn:5 rd:5 &rrr_e esz=%esz_sd @rrr_hsd ........ ... rm:5 ...... rn:5 rd:5 &rrr_e esz=%esz_hsd @rrr_e ........ esz:2 . rm:5 ...... rn:5 rd:5 &rrr_e +@r2r_e ........ esz:2 . ..... ...... rm:5 rd:5 &rrr_e rn=%rd @rrx_h ........ .. .. rm:4 .... . . rn:5 rd:5 &rrx_e esz=1 idx=%hlm @rrx_s ........ .. . rm:5 .... . . rn:5 rd:5 &rrx_e esz=2 idx=%hl @@ -60,6 +61,7 @@ @qrrr_h . q:1 ...... ... rm:5 ...... rn:5 rd:5 &qrrr_e esz=1 @qrrr_sd . q:1 ...... ... rm:5 ...... rn:5 rd:5 &qrrr_e esz=%esz_sd @qrrr_e . q:1 ...... esz:2 . rm:5 ...... rn:5 rd:5 &qrrr_e +@qr2r_e . q:1 ...... esz:2 . ..... ...... rm:5 rd:5 &qrrr_e rn=%rd @qrrx_h . q:1 .. .... .. .. rm:4 .... . . rn:5 rd:5 \ &qrrx_e esz=1 idx=%hlm @@ -750,6 +752,9 @@ UQADD_s 0111 1110 ..1 ..... 00001 1 ..... ..... @rrr_e SQSUB_s 0101 1110 ..1 ..... 00101 1 ..... ..... @rrr_e UQSUB_s 0111 1110 ..1 ..... 00101 1 ..... ..... @rrr_e +SUQADD_s 0101 1110 ..1 00000 00111 0 ..... ..... @r2r_e +USQADD_s 0111 1110 ..1 00000 00111 0 ..... ..... @r2r_e + ### Advanced SIMD scalar pairwise FADDP_s 0101 1110 0011 0000 1101 10 ..... ..... @rr_h @@ -868,6 +873,9 @@ UQADD_v 0.10 1110 ..1 ..... 00001 1 ..... ..... @qrrr_e SQSUB_v 0.00 1110 ..1 ..... 00101 1 ..... ..... @qrrr_e UQSUB_v 0.10 1110 ..1 ..... 00101 1 ..... ..... @qrrr_e +SUQADD_v 0.00 1110 ..1 00000 00111 0 ..... ..... @qr2r_e +USQADD_v 0.10 1110 ..1 00000 00111 0 ..... ..... @qr2r_e + ### Advanced SIMD scalar x indexed element FMUL_si 0101 1111 00 .. .... 1001 . 0 ..... ..... @rrx_h diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c index 2f7298811d..fbcf18f92a 100644 --- a/target/arm/tcg/translate-a64.c +++ b/target/arm/tcg/translate-a64.c @@ -5096,6 +5096,8 @@ TRANS(SQADD_s, do_satacc_s, a, MO_SIGN, MO_SIGN, gen_sqadd_bhs, gen_sqadd_d) TRANS(SQSUB_s, do_satacc_s, a, MO_SIGN, MO_SIGN, gen_sqsub_bhs, gen_sqsub_d) TRANS(UQADD_s, do_satacc_s, a, 0, 0, gen_uqadd_bhs, gen_uqadd_d) TRANS(UQSUB_s, do_satacc_s, a, 0, 0, gen_uqsub_bhs, gen_uqsub_d) +TRANS(SUQADD_s, do_satacc_s, a, MO_SIGN, 0, gen_suqadd_bhs, gen_suqadd_d) +TRANS(USQADD_s, do_satacc_s, a, 0, MO_SIGN, gen_usqadd_bhs, gen_usqadd_d) static bool do_fp3_vector(DisasContext *s, arg_qrrr_e *a, gen_helper_gvec_3_ptr * const fns[3]) @@ -5339,6 +5341,8 @@ TRANS(SQADD_v, do_gvec_fn3, a, gen_gvec_sqadd_qc) TRANS(UQADD_v, do_gvec_fn3, a, gen_gvec_uqadd_qc) TRANS(SQSUB_v, do_gvec_fn3, a, gen_gvec_sqsub_qc) TRANS(UQSUB_v, do_gvec_fn3, a, gen_gvec_uqsub_qc) +TRANS(SUQADD_v, do_gvec_fn3, a, gen_gvec_suqadd_qc) +TRANS(USQADD_v, do_gvec_fn3, a, gen_gvec_usqadd_qc) /* * Advanced SIMD scalar/vector x indexed element @@ -10009,48 +10013,6 @@ static void handle_2misc_narrow(DisasContext *s, bool scalar, clear_vec_high(s, is_q, rd); } -/* Remaining saturating accumulating ops */ -static void handle_2misc_satacc(DisasContext *s, bool is_scalar, bool is_u, - bool is_q, unsigned size, int rn, int rd) -{ - TCGv_i64 res, qc, a, b; - - if (!is_scalar) { - gen_gvec_fn3(s, is_q, rd, rd, rn, - is_u ? gen_gvec_usqadd_qc : gen_gvec_suqadd_qc, size); - return; - } - - res = tcg_temp_new_i64(); - qc = tcg_temp_new_i64(); - a = tcg_temp_new_i64(); - b = tcg_temp_new_i64(); - - /* Read and extend scalar inputs to 64-bits. */ - read_vec_element(s, a, rd, 0, size | (is_u ? 0 : MO_SIGN)); - read_vec_element(s, b, rn, 0, size | (is_u ? MO_SIGN : 0)); - tcg_gen_ld_i64(qc, tcg_env, offsetof(CPUARMState, vfp.qc)); - - if (size == MO_64) { - if (is_u) { - gen_usqadd_d(res, qc, a, b); - } else { - gen_suqadd_d(res, qc, a, b); - } - } else { - if (is_u) { - gen_usqadd_bhs(res, qc, a, b, size); - } else { - gen_suqadd_bhs(res, qc, a, b, size); - /* Truncate signed 64-bit result for writeback. */ - tcg_gen_ext_i64(res, res, size); - } - } - - write_fp_dreg(s, rd, res); - tcg_gen_st_i64(qc, tcg_env, offsetof(CPUARMState, vfp.qc)); -} - /* AdvSIMD scalar two reg misc * 31 30 29 28 24 23 22 21 17 16 12 11 10 9 5 4 0 * +-----+---+-----------+------+-----------+--------+-----+------+------+ @@ -10070,12 +10032,6 @@ static void disas_simd_scalar_two_reg_misc(DisasContext *s, uint32_t insn) TCGv_ptr tcg_fpstatus; switch (opcode) { - case 0x3: /* USQADD / SUQADD*/ - if (!fp_access_check(s)) { - return; - } - handle_2misc_satacc(s, true, u, false, size, rn, rd); - return; case 0x7: /* SQABS / SQNEG */ break; case 0xa: /* CMLT */ @@ -10175,6 +10131,7 @@ static void disas_simd_scalar_two_reg_misc(DisasContext *s, uint32_t insn) } break; default: + case 0x3: /* USQADD / SUQADD */ unallocated_encoding(s); return; } @@ -11666,16 +11623,6 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) return; } break; - case 0x3: /* SUQADD, USQADD */ - if (size == 3 && !is_q) { - unallocated_encoding(s); - return; - } - if (!fp_access_check(s)) { - return; - } - handle_2misc_satacc(s, false, u, is_q, size, rn, rd); - return; case 0x7: /* SQABS, SQNEG */ if (size == 3 && !is_q) { unallocated_encoding(s); @@ -11850,6 +11797,7 @@ static void disas_simd_two_reg_misc(DisasContext *s, uint32_t insn) break; } default: + case 0x3: /* SUQADD, USQADD */ unallocated_encoding(s); return; }