From patchwork Sat Dec 24 23:57:14 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 636694 Delivered-To: patch@linaro.org Received: by 2002:a17:522:c983:b0:460:3032:e3c4 with SMTP id kr3csp932801pvb; Sat, 24 Dec 2022 16:13:40 -0800 (PST) X-Google-Smtp-Source: AMrXdXuJheOJ85jEmdD0uFV8QHSJBDQDWTolT0nfIkFo89q8Z+ibAwgMm+o+NtFap24q4TgAh8Fq X-Received: by 2002:a05:6214:350d:b0:4c6:90c6:b427 with SMTP id nk13-20020a056214350d00b004c690c6b427mr19590612qvb.39.1671927219954; Sat, 24 Dec 2022 16:13:39 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1671927219; cv=none; d=google.com; s=arc-20160816; b=bFQHunToMKEidVnhdaqJnFK29Q0+Rn36aSh1mc5xE2OD2uTd7wcL4bHfh48C9856Qm nQjpL29N8Rsq3+fEUU90gNmaskZ5kMX76VBwDeU8QiuXYJq2DCzW63bcwTt9nyEltikq DTLKqJyrozGDtYi5bQoPNs2aPAPBEaNk8IidZuZj2JXWErwkYY/Gf9t+B4QcIczIW1u6 +T96GGe2Cv6qXv2N7eIeBo2VcolgXpUNMLNHpuQQ1UnKR/tfOvmzt5/y+RT6sLovRgIh ZsDYtS51k19PksYEajldzZD/eHZz1ELc1A2dPWuTWam1mZupla3o543Bw9Jnijx8UbG3 JZsw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:content-transfer-encoding :mime-version:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=HrfsNyGJ4cFlPj1QXpR5FkACHHSum2rmLa4iU9J/XqE=; b=tzEB9WlqSIVLL/3HfvNXHJOvIyD78hS2RW70GWLGdfqvgP5zRO+o1A/SjWOypl5TC5 IN0qVUmx6BLQdUVOqaKY/UEFuOxB8xOnlcL42ebfkpjaWDxv7emfb8ZjlJS/cSQ7cvXB KmRO83rMpHogqkXsGLbS4cW6ocJj1Vv6hXcHmJ7TFDPPP0AGS+sH8BszUGHRjBWwC4Tk maw0dlLrbpJud3IrFAWBVXBraALP3+NX0OPBQytHPUqdxY7WmYVLySDVC9KoxyHgM+f2 S6y0TaWXBx9TcEtP9VtB7kPzHKfkc3/qRSTE+YWn7fg4dZL/L74AxOZ99icqpb8llvzC qceQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b="kSGUf/Cd"; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id x18-20020a05620a259200b006fcb2fca088si2587762qko.252.2022.12.24.16.13.39 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Sat, 24 Dec 2022 16:13:39 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@linaro.org header.s=google header.b="kSGUf/Cd"; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p9EOy-0002eR-BI; Sat, 24 Dec 2022 18:58:04 -0500 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 1p9EOu-0002ZX-L6 for qemu-devel@nongnu.org; Sat, 24 Dec 2022 18:58:02 -0500 Received: from mail-pl1-x62c.google.com ([2607:f8b0:4864:20::62c]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1p9EOs-0006Lh-9B for qemu-devel@nongnu.org; Sat, 24 Dec 2022 18:58:00 -0500 Received: by mail-pl1-x62c.google.com with SMTP id s7so8041398plk.5 for ; Sat, 24 Dec 2022 15:57:57 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; 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=HrfsNyGJ4cFlPj1QXpR5FkACHHSum2rmLa4iU9J/XqE=; b=kSGUf/Cdc7JdoYUJztF1pzFxMTrtnxqF7GXSspv4Xy0raHcpPLriYsYYRVQCWmoBv6 24XiIGWGMPchgubmqpc/h7GA4cNHi5FiyL+Lls4yNPK53mbX9lA7zird1G1byiKyHudi 7SSTgwqoTkMtoWOHLSztQgBjQvoMwngt9he8WhoYIDro8nCOGI4SNFeUPbFSgnWyJw6u gB8m40m2ZWJyUO56XBg75iHslZ/k509X21oVbHAvEx+/C6Y6aQXAvKx0HwNZb6VZ3rQY bI4eJKedsgD+hDdC3Uiups5oi4Cg7I3NCr5bifCEC8Wu6ZVkxK3rtTcvGAIY30Ce4MPU V7yA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=HrfsNyGJ4cFlPj1QXpR5FkACHHSum2rmLa4iU9J/XqE=; b=x4WXigptt1fMlHghEH98RzL3pxF10dbCqscppeqeExRZF0Fe/bd/p4QTZka0zQyWcy xDpPw96C2vHXjruy0M6qkXn3cRAUChIVhwyjmIdtVQYrRdsvCcuGAPGjxHEicMHrMcVc qlLRZdAd8xWC6HSqumUHoYFfdOiCpKfdnLb4xKDU9XDnO1KVIrKQyfXgZWs9RZ7hns1H Y5Pja0ug5lMg7KG8ReRz9omT+N6Xm5v3COrtw6LWEnNrimJVpbg7o0U8/pWMRnDXuySq QZYFh2lsDR3qGp3VFH2S4e/TYbHbSUV8QLpx0rgyfFUXt5+aUGbdbt+coKp84j2T6dFv 8cfg== X-Gm-Message-State: AFqh2kqRRtBt0VirsAcamhUpJ9C0zxY6Qv7L9QoCEvzFsPk8ORqckfJn 1KGBJb68bYZdBXdiWDkdf0tW+AT8ZaxpKQyJ X-Received: by 2002:a17:903:18b:b0:186:e378:91cf with SMTP id z11-20020a170903018b00b00186e37891cfmr23014653plg.37.1671926277237; Sat, 24 Dec 2022 15:57:57 -0800 (PST) Received: from stoup.. (76-14-210-194.or.wavecable.com. [76.14.210.194]) by smtp.gmail.com with ESMTPSA id cp12-20020a170902e78c00b00187022627d7sm4599716plb.36.2022.12.24.15.57.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Dec 2022 15:57:56 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: alex.bennee@linaro.org, philmd@linaro.org Subject: [PATCH v5 37/43] tcg: Use output_pref wrapper function Date: Sat, 24 Dec 2022 15:57:14 -0800 Message-Id: <20221224235720.842093-38-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221224235720.842093-1-richard.henderson@linaro.org> References: <20221224235720.842093-1-richard.henderson@linaro.org> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::62c; envelope-from=richard.henderson@linaro.org; helo=mail-pl1-x62c.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+patch=linaro.org@nongnu.org Sender: qemu-devel-bounces+patch=linaro.org@nongnu.org We will shortly have the possibility of more that two outputs, though only for calls (for which preferences are moot). Avoid direct references to op->output_pref[] when possible. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- include/tcg/tcg.h | 5 +++++ tcg/tcg.c | 34 ++++++++++++++++++---------------- 2 files changed, 23 insertions(+), 16 deletions(-) diff --git a/include/tcg/tcg.h b/include/tcg/tcg.h index d430ea10c8..a6310b898f 100644 --- a/include/tcg/tcg.h +++ b/include/tcg/tcg.h @@ -518,6 +518,11 @@ typedef struct TCGOp { /* Make sure operands fit in the bitfields above. */ QEMU_BUILD_BUG_ON(NB_OPS > (1 << 8)); +static inline TCGRegSet output_pref(const TCGOp *op, unsigned i) +{ + return i < ARRAY_SIZE(op->output_pref) ? op->output_pref[i] : 0; +} + typedef struct TCGProfile { int64_t cpu_exec_time; int64_t tb_count1; diff --git a/tcg/tcg.c b/tcg/tcg.c index ccbe947222..d08323db49 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1966,7 +1966,7 @@ static void tcg_dump_ops(TCGContext *s, FILE *f, bool have_prefs) if (have_prefs) { for (i = 0; i < nb_oargs; ++i) { - TCGRegSet set = op->output_pref[i]; + TCGRegSet set = output_pref(op, i); if (i == 0) { ne_fprintf(f, " pref="); @@ -2636,11 +2636,11 @@ static void liveness_pass_1(TCGContext *s) } ts->state = TS_DEAD; la_reset_pref(ts); - - /* Not used -- it will be tcg_target_call_oarg_regs[i]. */ - op->output_pref[i] = 0; } + /* Not used -- it will be tcg_target_call_oarg_reg(). */ + memset(op->output_pref, 0, sizeof(op->output_pref)); + if (!(call_flags & (TCG_CALL_NO_WRITE_GLOBALS | TCG_CALL_NO_READ_GLOBALS))) { la_global_kill(s, nb_globals); @@ -2802,7 +2802,9 @@ static void liveness_pass_1(TCGContext *s) ts = arg_temp(op->args[i]); /* Remember the preference of the uses that followed. */ - op->output_pref[i] = *la_temp_pref(ts); + if (i < ARRAY_SIZE(op->output_pref)) { + op->output_pref[i] = *la_temp_pref(ts); + } /* Output args are dead. */ if (ts->state & TS_DEAD) { @@ -2872,7 +2874,7 @@ static void liveness_pass_1(TCGContext *s) set &= ct->regs; if (ct->ialias) { - set &= op->output_pref[ct->alias_index]; + set &= output_pref(op, ct->alias_index); } /* If the combination is not possible, restart. */ if (set == 0) { @@ -3539,7 +3541,7 @@ static void tcg_reg_alloc_mov(TCGContext *s, const TCGOp *op) TCGReg oreg, ireg; allocated_regs = s->reserved_regs; - preferred_regs = op->output_pref[0]; + preferred_regs = output_pref(op, 0); ots = arg_temp(op->args[0]); ts = arg_temp(op->args[1]); @@ -3656,7 +3658,7 @@ static void tcg_reg_alloc_dup(TCGContext *s, const TCGOp *op) if (IS_DEAD_ARG(1)) { temp_dead(s, its); } - tcg_reg_alloc_do_movi(s, ots, val, arg_life, op->output_pref[0]); + tcg_reg_alloc_do_movi(s, ots, val, arg_life, output_pref(op, 0)); return; } @@ -3673,7 +3675,7 @@ static void tcg_reg_alloc_dup(TCGContext *s, const TCGOp *op) tcg_regset_set_reg(allocated_regs, its->reg); } oreg = tcg_reg_alloc(s, dup_out_regs, allocated_regs, - op->output_pref[0], ots->indirect_base); + output_pref(op, 0), ots->indirect_base); set_temp_val_reg(s, ots, oreg); } @@ -3792,7 +3794,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op) switch (arg_ct->pair) { case 0: /* not paired */ if (arg_ct->ialias) { - i_preferred_regs = op->output_pref[arg_ct->alias_index]; + i_preferred_regs = output_pref(op, arg_ct->alias_index); /* * If the input is not dead after the instruction, @@ -3839,7 +3841,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op) * and to identify a few cases where it's not required. */ if (arg_ct->ialias) { - i_preferred_regs = op->output_pref[arg_ct->alias_index]; + i_preferred_regs = output_pref(op, arg_ct->alias_index); if (IS_DEAD_ARG(i1) && IS_DEAD_ARG(i2) && ts->val_type == TEMP_VAL_REG && @@ -3873,7 +3875,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op) case 3: /* ialias with second output, no first input */ tcg_debug_assert(arg_ct->ialias); - i_preferred_regs = op->output_pref[arg_ct->alias_index]; + i_preferred_regs = output_pref(op, arg_ct->alias_index); if (IS_DEAD_ARG(i) && ts->val_type == TEMP_VAL_REG && @@ -3993,10 +3995,10 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op) } else if (arg_ct->newreg) { reg = tcg_reg_alloc(s, arg_ct->regs, i_allocated_regs | o_allocated_regs, - op->output_pref[k], ts->indirect_base); + output_pref(op, k), ts->indirect_base); } else { reg = tcg_reg_alloc(s, arg_ct->regs, o_allocated_regs, - op->output_pref[k], ts->indirect_base); + output_pref(op, k), ts->indirect_base); } break; @@ -4007,7 +4009,7 @@ static void tcg_reg_alloc_op(TCGContext *s, const TCGOp *op) break; } reg = tcg_reg_alloc_pair(s, arg_ct->regs, o_allocated_regs, - op->output_pref[k], ts->indirect_base); + output_pref(op, k), ts->indirect_base); break; case 2: /* second of pair */ @@ -4090,7 +4092,7 @@ static bool tcg_reg_alloc_dup2(TCGContext *s, const TCGOp *op) } oreg = tcg_reg_alloc(s, dup_out_regs, allocated_regs, - op->output_pref[0], ots->indirect_base); + output_pref(op, 0), ots->indirect_base); set_temp_val_reg(s, ots, oreg); }