From patchwork Sat Oct 21 05:30:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 1852948 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=linaro.org header.i=@linaro.org header.a=rsa-sha256 header.s=google header.b=zl5M9xg7; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SC9V80Jwfz202k for ; Sat, 21 Oct 2023 16:48:16 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qu4au-0007AA-4i; Sat, 21 Oct 2023 01:32:16 -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 1qu4as-00079N-FS for qemu-devel@nongnu.org; Sat, 21 Oct 2023 01:32:14 -0400 Received: from mail-ot1-x333.google.com ([2607:f8b0:4864:20::333]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qu4aq-0008NJ-PZ for qemu-devel@nongnu.org; Sat, 21 Oct 2023 01:32:14 -0400 Received: by mail-ot1-x333.google.com with SMTP id 46e09a7af769-6ce2bcb131fso1009013a34.1 for ; Fri, 20 Oct 2023 22:32:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1697866331; x=1698471131; 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=z3VEIbvjRYgsDHOF+dDcgCX/rxnIBN6JS7kHe55iiGc=; b=zl5M9xg71jrC9xf67X4wDskVVWdRVxPw37v4VECT9FO0DwtLjT9y9goJdWDp81nIcj TlqBrxya6MrFOqOMEdbb2qFv2MCqiYz9GT/9WqRPTHfNFozLEBbos7/ftLTW2db9fmQg wtrXOxBjXny4ck34EEvGmGFLgUiUfZWQyyunD21sUpD30LaE3X47sg4MOJCSm5as0o5t TeVAqcq0rbeqCMcwO8w7l/oUyf0BeZzB6McrkmCu6ymJWB2bS5GCVOSf0RGse+WR5m/y vjeo+o5bBrl5YoPe61RY9XMWj/InDSglBADuUEbdacGQ4/VKwbw5QsNBVzPRF97lLdik 6jZA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697866331; x=1698471131; 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=z3VEIbvjRYgsDHOF+dDcgCX/rxnIBN6JS7kHe55iiGc=; b=hH7sOQU+9qdgExawucUTaAqrdHITbDJYSnsrmd1rPLHB66CCOPkMMWjXkq3aNBMBXj GRIQkZ5qelgZ7ASwfhVZai8rjHCdowWpY17It+JI0xKSFPb9I8/GPtE3RzfqBsWNfqVT W9CPY1dzJ2RcIgmAPIvqWUKz0rhmXWZHHnKvQEnDqN/1+Our/IaiEmF7pb4agEkaRZOw JKghgTvbNKHSr5qL0WSJTOv6+8nMvwfi3OL3VGoEd1QY5KvufosTzLz+VfvHD3l00LWB JmLOeEGvgks/PuD4iXTq98ShB7Cm9lVRxqF3MpwaK70kwteoa8kGzXs0gR1wr0xnKOOP wFRA== X-Gm-Message-State: AOJu0Ywgl86jWIbAAa8owWyt5XjOqmpbTXVLbks7GImvn+wxNl+7earm H1Ly0BERWtbTzsSTyibrrgTsfUSccarV2e3yuXc= X-Google-Smtp-Source: AGHT+IHjPo7DAsiIvZrFyFpY0TmBes7+HqQc6GNNPfbK1wDThKMeMcM4e8Y7QE/LdcV12DL+uGv6QA== X-Received: by 2002:a05:6830:9:b0:6bc:f999:a544 with SMTP id c9-20020a056830000900b006bcf999a544mr3923730otp.15.1697866331473; Fri, 20 Oct 2023 22:32:11 -0700 (PDT) Received: from stoup.. ([71.212.149.95]) by smtp.gmail.com with ESMTPSA id f20-20020a056a001ad400b006b2677d3684sm2434831pfv.206.2023.10.20.22.32.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 20 Oct 2023 22:32:11 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: mark.cave-ayland@ilande.co.uk Subject: [PATCH v3 14/90] target/sparc: Move FBPfcc and FBfcc to decodetree Date: Fri, 20 Oct 2023 22:30:42 -0700 Message-Id: <20231021053158.278135-15-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231021053158.278135-1-richard.henderson@linaro.org> References: <20231021053158.278135-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::333; envelope-from=richard.henderson@linaro.org; helo=mail-ot1-x333.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: 2.1.29 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 --- target/sparc/insns.decode | 4 ++ target/sparc/translate.c | 102 +++++++++++++++----------------------- 2 files changed, 43 insertions(+), 63 deletions(-) diff --git a/target/sparc/insns.decode b/target/sparc/insns.decode index 838f4cdb1d..9ab3f2eb82 100644 --- a/target/sparc/insns.decode +++ b/target/sparc/insns.decode @@ -6,8 +6,12 @@ &bcc i a cond cc BPcc 00 a:1 cond:4 001 cc:1 0 - i:s19 &bcc Bicc 00 a:1 cond:4 010 i:s22 &bcc cc=0 +FBPfcc 00 a:1 cond:4 101 cc:2 - i:s19 &bcc +FBfcc 00 a:1 cond:4 110 i:s22 &bcc cc=0 %d16 20:s2 0:14 BPr 00 a:1 0 cond:3 011 .. - rs1:5 .............. i=%d16 +NCP 00 - ---- 111 ---------------------- # CBcc + CALL 01 i:s30 diff --git a/target/sparc/translate.c b/target/sparc/translate.c index 2d08c81821..69e85b1842 100644 --- a/target/sparc/translate.c +++ b/target/sparc/translate.c @@ -1356,44 +1356,6 @@ static void gen_compare_reg(DisasCompare *cmp, int cond, TCGv r_src) cmp->c2 = tcg_constant_tl(0); } -static void do_fbranch(DisasContext *dc, int32_t offset, uint32_t insn, int cc) -{ - unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29)); - target_ulong target = dc->pc + offset; - - if (unlikely(AM_CHECK(dc))) { - target &= 0xffffffffULL; - } - if (cond == 0x0) { - /* unconditional not taken */ - if (a) { - dc->pc = dc->npc + 4; - dc->npc = dc->pc + 4; - } else { - dc->pc = dc->npc; - dc->npc = dc->pc + 4; - } - } else if (cond == 0x8) { - /* unconditional taken */ - if (a) { - dc->pc = target; - dc->npc = dc->pc + 4; - } else { - dc->pc = dc->npc; - dc->npc = target; - tcg_gen_mov_tl(cpu_pc, cpu_npc); - } - } else { - flush_cond(dc); - gen_fcond(cpu_cond, cc, cond); - if (a) { - gen_branch_a(dc, target); - } else { - gen_branch_n(dc, target); - } - } -} - #ifdef TARGET_SPARC64 static void gen_op_fcmps(int fccno, TCGv_i32 r_rs1, TCGv_i32 r_rs2) { @@ -3034,6 +2996,28 @@ static bool do_bpcc(DisasContext *dc, arg_bcc *a) TRANS(Bicc, ALL, do_bpcc, a) TRANS(BPcc, 64, do_bpcc, a) +static bool do_fbpfcc(DisasContext *dc, arg_bcc *a) +{ + target_long target = address_mask_i(dc, dc->pc + a->i * 4); + + if (gen_trap_ifnofpu(dc)) { + return true; + } + switch (a->cond) { + case 0x0: + return advance_jump_uncond_never(dc, a->a); + case 0x8: + return advance_jump_uncond_always(dc, a->a, target); + default: + flush_cond(dc); + gen_fcond(cpu_cond, a->cc, a->cond); + return advance_jump_cond(dc, a->a, target); + } +} + +TRANS(FBPfcc, 64, do_fbpfcc, a) +TRANS(FBfcc, ALL, do_fbpfcc, a) + static bool trans_BPr(DisasContext *dc, arg_BPr *a) { target_long target = address_mask_i(dc, dc->pc + a->i * 4); @@ -3062,6 +3046,20 @@ static bool trans_CALL(DisasContext *dc, arg_CALL *a) return true; } +static bool trans_NCP(DisasContext *dc, arg_NCP *a) +{ + /* + * For sparc32, always generate the no-coprocessor exception. + * For sparc64, always generate illegal instruction. + */ +#ifdef TARGET_SPARC64 + return false; +#else + gen_exception(dc, TT_NCP_INSN); + return true; +#endif +} + #define CHECK_IU_FEATURE(dc, FEATURE) \ if (!((dc)->def->features & CPU_FEATURE_ ## FEATURE)) \ goto illegal_insn; @@ -3085,7 +3083,6 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn) case 0: /* branches/sethi */ { unsigned int xop = GET_FIELD(insn, 7, 9); - int32_t target; switch (xop) { #ifdef TARGET_SPARC64 case 0x1: /* V9 BPcc */ @@ -3093,36 +3090,15 @@ static void disas_sparc_legacy(DisasContext *dc, unsigned int insn) case 0x3: /* V9 BPr */ g_assert_not_reached(); /* in decodetree */ case 0x5: /* V9 FBPcc */ - { - int cc = GET_FIELD_SP(insn, 20, 21); - if (gen_trap_ifnofpu(dc)) { - goto jmp_insn; - } - target = GET_FIELD_SP(insn, 0, 18); - target = sign_extend(target, 19); - target <<= 2; - do_fbranch(dc, target, insn, cc); - goto jmp_insn; - } + g_assert_not_reached(); /* in decodetree */ #else case 0x7: /* CBN+x */ - { - goto ncp_insn; - } + g_assert_not_reached(); /* in decodetree */ #endif case 0x2: /* BN+x */ g_assert_not_reached(); /* in decodetree */ case 0x6: /* FBN+x */ - { - if (gen_trap_ifnofpu(dc)) { - goto jmp_insn; - } - target = GET_FIELD(insn, 10, 31); - target = sign_extend(target, 22); - target <<= 2; - do_fbranch(dc, target, insn, 0); - goto jmp_insn; - } + g_assert_not_reached(); /* in decodetree */ case 0x4: /* SETHI */ /* Special-case %g0 because that's the canonical nop. */ if (rd) {