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 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 05AE6C4332F for ; Sun, 11 Dec 2022 15:33:25 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1p4OFx-0006Vd-TV; Sun, 11 Dec 2022 10:28:45 -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 1p4OFm-0006PH-1q for qemu-devel@nongnu.org; Sun, 11 Dec 2022 10:28:34 -0500 Received: from mail-ot1-x32c.google.com ([2607:f8b0:4864:20::32c]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1p4OFf-0007L5-Sb for qemu-devel@nongnu.org; Sun, 11 Dec 2022 10:28:33 -0500 Received: by mail-ot1-x32c.google.com with SMTP id p24-20020a0568301d5800b0066e6dc09be5so5836491oth.8 for ; Sun, 11 Dec 2022 07:28:14 -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=BkhpLPYibgi28bZ0AVemBX1UWP5NYhHvrup30BVm2VQ=; b=rU/4QznzMjpjL3X7CgcpyppWiM8/Uj574eQ9qs/dCpejy37i052Dk7VgET4LyGUW3F nYKoM/+bUDG2yKX2YQdVarUlfN+fxpnpJnIdrnK/9jJtMvaYBpWxrkG/rYePtR4ogUkA ailwhWqDHfsWa8jZUNHaNvnxVa4lAEEYi2XAbCE9Pg3jh1K/eHLB8+nRA4uszAyRUZFF Iaps4uZEvUggTkTzOWU2ikfzvwAbXl+snSHTSwwZfV26bOI2B9Wd0qrqEj1exN7IZ5Bj Pj9Rps/8xevnk9GwXgMVaQHbWMbIjx+GeOrmr6wQU7WvZm+R8N79RmCEwtOYvyYHV1+w 8lrA== 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=BkhpLPYibgi28bZ0AVemBX1UWP5NYhHvrup30BVm2VQ=; b=TNdGTWmzwGFICkznbvFPl3VFMROg++GEO2sh0frL34/yq9+fGGqKeOSvvTOD/jXWQO WVMX3hDsFwGxW/O4YbEs9lGxJYBAOIBhR2c+Inj6Rm4MWgVnwfkd+IhXl2AcDPmw3P7A 02kxrLiVFwUAldZbagHgd1zntiP+qC1i2+By/BEEkM3jGkI1enHtg4IKSlTqE+9+R/G2 fxe/cBgrT3TFCSsAgkVRUQOy9NtXoTw6Y1o9Rn8bT9bNvooOZqeSY35M4pfEFu/6w9h9 8DIgVRp80fO2DKOfkBP5fK8N3qnOSctpnVtdEMj5epfqa9AVOdPoCVeLAgAeNjHuowTu PU3w== X-Gm-Message-State: ANoB5pmA4Mc3LXNqMZEpAfcgo76OjOEUb1plwflrAE1sZPGXDDzK/h98 tg9A41uUCJOZDB+wjoZ62mNfiU+zBxyTlJW0IXg= X-Google-Smtp-Source: AA0mqf68O0SPfv3871+DOzTnYaiTTuhDI70cGb9JiwSgQY0IJ5T2VgpZLyA0l72FPTmVQ/dIOVY6Bg== X-Received: by 2002:a05:6830:6286:b0:661:dfeb:ee89 with SMTP id ce6-20020a056830628600b00661dfebee89mr8601432otb.3.1670772494213; Sun, 11 Dec 2022 07:28:14 -0800 (PST) Received: from stoup.. ([2806:102e:18:2efc:7b4f:f28b:eca6:b583]) by smtp.gmail.com with ESMTPSA id q24-20020a056830233800b006708d2cd8bcsm938140otg.65.2022.12.11.07.28.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 11 Dec 2022 07:28:13 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, Ilya Leoshkevich Subject: [PATCH v2 08/27] target/s390x: Introduce gen_psw_addr_disp Date: Sun, 11 Dec 2022 09:27:43 -0600 Message-Id: <20221211152802.923900-9-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221211152802.923900-1-richard.henderson@linaro.org> References: <20221211152802.923900-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::32c; envelope-from=richard.henderson@linaro.org; helo=mail-ot1-x32c.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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org In preparation for TARGET_TB_PCREL, reduce reliance on absolute values. Reviewed-by: Ilya Leoshkevich Signed-off-by: Richard Henderson --- target/s390x/tcg/translate.c | 69 ++++++++++++++++++++++++------------ 1 file changed, 46 insertions(+), 23 deletions(-) diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c index f755909aeb..a6a6dfd7fe 100644 --- a/target/s390x/tcg/translate.c +++ b/target/s390x/tcg/translate.c @@ -169,6 +169,11 @@ static uint64_t inline_branch_hit[CC_OP_MAX]; static uint64_t inline_branch_miss[CC_OP_MAX]; #endif +static void gen_psw_addr_disp(DisasContext *s, TCGv_i64 dest, int64_t disp) +{ + tcg_gen_movi_i64(dest, s->base.pc_next + disp); +} + static void pc_to_link_info(TCGv_i64 out, DisasContext *s, uint64_t pc) { if (s->base.tb->flags & FLAG_MASK_32) { @@ -334,18 +339,24 @@ static void return_low128(TCGv_i64 dest) static void update_psw_addr(DisasContext *s) { - /* psw.addr */ - tcg_gen_movi_i64(psw_addr, s->base.pc_next); + gen_psw_addr_disp(s, psw_addr, 0); } static void per_branch(DisasContext *s, bool to_next) { #ifndef CONFIG_USER_ONLY - tcg_gen_movi_i64(gbea, s->base.pc_next); + gen_psw_addr_disp(s, gbea, 0); if (s->base.tb->flags & FLAG_MASK_PER) { - TCGv_i64 next_pc = to_next ? tcg_constant_i64(s->pc_tmp) : psw_addr; - gen_helper_per_branch(cpu_env, gbea, next_pc); + if (to_next) { + TCGv_i64 next_pc = tcg_temp_new_i64(); + + gen_psw_addr_disp(s, next_pc, s->ilen); + gen_helper_per_branch(cpu_env, gbea, next_pc); + tcg_temp_free_i64(next_pc); + } else { + gen_helper_per_branch(cpu_env, gbea, psw_addr); + } } #endif } @@ -358,20 +369,23 @@ static void per_branch_cond(DisasContext *s, TCGCond cond, TCGLabel *lab = gen_new_label(); tcg_gen_brcond_i64(tcg_invert_cond(cond), arg1, arg2, lab); - tcg_gen_movi_i64(gbea, s->base.pc_next); + gen_psw_addr_disp(s, gbea, 0); gen_helper_per_branch(cpu_env, gbea, psw_addr); gen_set_label(lab); } else { - TCGv_i64 pc = tcg_constant_i64(s->base.pc_next); + TCGv_i64 pc = tcg_temp_new_i64(); + + gen_psw_addr_disp(s, pc, 0); tcg_gen_movcond_i64(cond, gbea, arg1, arg2, gbea, pc); + tcg_temp_free_i64(pc); } #endif } static void per_breaking_event(DisasContext *s) { - tcg_gen_movi_i64(gbea, s->base.pc_next); + gen_psw_addr_disp(s, gbea, 0); } static void update_cc_op(DisasContext *s) @@ -1147,21 +1161,19 @@ struct DisasInsn { static DisasJumpType help_goto_direct(DisasContext *s, int64_t disp) { - uint64_t dest = s->base.pc_next + disp; - - if (dest == s->pc_tmp) { + if (disp == s->ilen) { per_branch(s, true); return DISAS_NEXT; } - if (use_goto_tb(s, dest)) { + if (use_goto_tb(s, s->base.pc_next + disp)) { update_cc_op(s); per_breaking_event(s); tcg_gen_goto_tb(0); - tcg_gen_movi_i64(psw_addr, dest); + gen_psw_addr_disp(s, psw_addr, disp); tcg_gen_exit_tb(s->base.tb, 0); return DISAS_NORETURN; } else { - tcg_gen_movi_i64(psw_addr, dest); + gen_psw_addr_disp(s, psw_addr, disp); per_branch(s, false); return DISAS_PC_UPDATED; } @@ -1219,14 +1231,14 @@ static DisasJumpType help_branch(DisasContext *s, DisasCompare *c, /* Branch not taken. */ tcg_gen_goto_tb(0); - tcg_gen_movi_i64(psw_addr, s->pc_tmp); + gen_psw_addr_disp(s, psw_addr, s->ilen); tcg_gen_exit_tb(s->base.tb, 0); /* Branch taken. */ gen_set_label(lab); per_breaking_event(s); tcg_gen_goto_tb(1); - tcg_gen_movi_i64(psw_addr, dest); + gen_psw_addr_disp(s, psw_addr, disp); tcg_gen_exit_tb(s->base.tb, 1); ret = DISAS_NORETURN; @@ -1249,12 +1261,12 @@ static DisasJumpType help_branch(DisasContext *s, DisasCompare *c, /* Branch not taken. */ update_cc_op(s); tcg_gen_goto_tb(0); - tcg_gen_movi_i64(psw_addr, s->pc_tmp); + gen_psw_addr_disp(s, psw_addr, s->ilen); tcg_gen_exit_tb(s->base.tb, 0); gen_set_label(lab); if (is_imm) { - tcg_gen_movi_i64(psw_addr, dest); + gen_psw_addr_disp(s, psw_addr, disp); } per_breaking_event(s); ret = DISAS_PC_UPDATED; @@ -1264,9 +1276,12 @@ static DisasJumpType help_branch(DisasContext *s, DisasCompare *c, Most commonly we're single-stepping or some other condition that disables all use of goto_tb. Just update the PC and exit. */ - TCGv_i64 next = tcg_constant_i64(s->pc_tmp); + TCGv_i64 next = tcg_temp_new_i64(); + + gen_psw_addr_disp(s, next, s->ilen); if (is_imm) { - cdest = tcg_constant_i64(dest); + cdest = tcg_temp_new_i64(); + gen_psw_addr_disp(s, cdest, disp); } if (c->is_64) { @@ -1285,6 +1300,10 @@ static DisasJumpType help_branch(DisasContext *s, DisasCompare *c, tcg_temp_free_i64(t1); } + tcg_temp_free_i64(next); + if (is_imm) { + tcg_temp_free_i64(cdest); + } ret = DISAS_PC_UPDATED; } @@ -5827,7 +5846,8 @@ static void in2_a2(DisasContext *s, DisasOps *o) static void in2_ri2(DisasContext *s, DisasOps *o) { - o->in2 = tcg_const_i64(s->base.pc_next + (int64_t)get_field(s, i2) * 2); + o->in2 = tcg_temp_new_i64(); + gen_psw_addr_disp(s, o->in2, (int64_t)get_field(s, i2) * 2); } #define SPEC_in2_ri2 0 @@ -6312,8 +6332,11 @@ static DisasJumpType translate_one(CPUS390XState *env, DisasContext *s) #ifndef CONFIG_USER_ONLY if (s->base.tb->flags & FLAG_MASK_PER) { - TCGv_i64 addr = tcg_constant_i64(s->base.pc_next); + TCGv_i64 addr = tcg_temp_new_i64(); + + gen_psw_addr_disp(s, addr, 0); gen_helper_per_ifetch(cpu_env, addr); + tcg_temp_free_i64(addr); } #endif @@ -6434,7 +6457,7 @@ static DisasJumpType translate_one(CPUS390XState *env, DisasContext *s) if (s->base.tb->flags & FLAG_MASK_PER) { /* An exception might be triggered, save PSW if not already done. */ if (ret == DISAS_NEXT || ret == DISAS_TOO_MANY) { - tcg_gen_movi_i64(psw_addr, s->pc_tmp); + gen_psw_addr_disp(s, psw_addr, s->ilen); } /* Call the helper to check for a possible PER exception. */ -- 2.34.1