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[173.198.77.218]) by smtp.gmail.com with ESMTPSA id jk20-20020a170903331400b0019258bcf3ffsm1911676plb.56.2023.02.20.10.41.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Feb 2023 10:41:11 -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=zv2ofhoo2yK6y5CvACgkzBidMP/qlNYVsy8kvmdv1TA=; b=u+4tc7st1AX1qph5g1MaO5uvnmlPF5ZT90mr+4390iz4iYIVHBawEWiS3QXLMNWWM2 pIUb/X3UZUxkdp+PQxSvwqlzppLEo+s/6Yty15AL+FYJzRfaIQ7IbRiq6fLJ3tGxM4Vj MkkifWf83YfU/AXfIRrrS17a2I067va2hz+RjdQmaoDFgusk/BX+x+BKym+5PeIIBxOw E4IW24e8xxe+ycSHE8wlQs1fqySDuN/O3T80WTjLx/sbpQUtqOrEyrOdbUKQMR48DR/F iNsJbC/3GA/SxcvzIvKooah+wlYSftdD2AbHbuKj6QrrTOT2Ku0ozfOTk/Qb/Hk0YMAv XSYQ== 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=zv2ofhoo2yK6y5CvACgkzBidMP/qlNYVsy8kvmdv1TA=; b=51nCN3ZwqITOj0X64nAv2toVQT/WZiQVMLD6SSMD9tYMBk9kIDXzNOjRHPp1aD7djk JAH0RHzCw9/6sa8sTglbb+haJt1JUeY/FZVLKHYRLmXoXShrPr187+fev2vYP8ObNxYA Mh5Wp5crwpiUyI/uuFNTRFiExALx7tYg18O5lxzsWqA7G4nfOMnV59xGgoM98DlUmQ+N Tlt3glnx5I7WlqcbMuuf5syKgrGrZLQ1K8lNpalYINCu9/ciPnW7JNat4SxBReG3xxen 6FZ2qug3faJd7z5kWpnbIWlQWbx1y7XsTxcNOArftk3zD0sM1wQ2GCZvJJ/WyPa50mBb yVPg== X-Gm-Message-State: AO0yUKXjPFnpgyR/fmk/v2L0J1fz/my7LKR+vvzy9FlclG5wvwuDIWrr onuLmjV+zYUoeUg7eVSeUdxU/AqsU9tJEHkIez4= X-Google-Smtp-Source: AK7set9zlZ69Tz4mvEGiV3B5yf2XJLq6elYsSVwK5PjVhReL5z91MSxtXR11F9s60FyGgFqghs6mJg== X-Received: by 2002:a17:903:22c8:b0:192:4f85:b91d with SMTP id y8-20020a17090322c800b001924f85b91dmr2712686plg.46.1676918471632; Mon, 20 Feb 2023 10:41:11 -0800 (PST) From: Richard Henderson To: qemu-devel@nongnu.org Cc: thuth@redhat.com, qemu-s390x@nongnu.org, Ilya Leoshkevich Subject: [PATCH v4 08/27] target/s390x: Introduce gen_psw_addr_disp Date: Mon, 20 Feb 2023 08:40:33 -1000 Message-Id: <20230220184052.163465-9-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230220184052.163465-1-richard.henderson@linaro.org> References: <20230220184052.163465-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::102b; envelope-from=richard.henderson@linaro.org; helo=mail-pj1-x102b.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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1676918792187100005 Content-Type: text/plain; charset="utf-8" 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 bd7f644f83..48e558a790 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 =20 +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) { @@ -346,18 +351,24 @@ static void return_low128(TCGv_i64 dest) =20 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); } =20 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); =20 if (s->base.tb->flags & FLAG_MASK_PER) { - TCGv_i64 next_pc =3D to_next ? tcg_constant_i64(s->pc_tmp) : psw_a= ddr; - gen_helper_per_branch(cpu_env, gbea, next_pc); + if (to_next) { + TCGv_i64 next_pc =3D 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 } @@ -370,20 +381,23 @@ static void per_branch_cond(DisasContext *s, TCGCond = cond, TCGLabel *lab =3D gen_new_label(); tcg_gen_brcond_i64(tcg_invert_cond(cond), arg1, arg2, lab); =20 - 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); =20 gen_set_label(lab); } else { - TCGv_i64 pc =3D tcg_constant_i64(s->base.pc_next); + TCGv_i64 pc =3D 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 } =20 static void per_breaking_event(DisasContext *s) { - tcg_gen_movi_i64(gbea, s->base.pc_next); + gen_psw_addr_disp(s, gbea, 0); } =20 static void update_cc_op(DisasContext *s) @@ -1163,21 +1177,19 @@ struct DisasInsn { =20 static DisasJumpType help_goto_direct(DisasContext *s, int64_t disp) { - uint64_t dest =3D s->base.pc_next + disp; - - if (dest =3D=3D s->pc_tmp) { + if (disp =3D=3D 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; } @@ -1235,14 +1247,14 @@ static DisasJumpType help_branch(DisasContext *s, D= isasCompare *c, =20 /* 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); =20 /* 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); =20 ret =3D DISAS_NORETURN; @@ -1265,12 +1277,12 @@ static DisasJumpType help_branch(DisasContext *s, D= isasCompare *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); =20 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 =3D DISAS_PC_UPDATED; @@ -1280,9 +1292,12 @@ static DisasJumpType help_branch(DisasContext *s, Di= sasCompare *c, Most commonly we're single-stepping or some other condition that disables all use of goto_tb. Just update the PC and exit. */ =20 - TCGv_i64 next =3D tcg_constant_i64(s->pc_tmp); + TCGv_i64 next =3D tcg_temp_new_i64(); + + gen_psw_addr_disp(s, next, s->ilen); if (is_imm) { - cdest =3D tcg_constant_i64(dest); + cdest =3D tcg_temp_new_i64(); + gen_psw_addr_disp(s, cdest, disp); } =20 if (c->is_64) { @@ -1301,6 +1316,10 @@ static DisasJumpType help_branch(DisasContext *s, Di= sasCompare *c, tcg_temp_free_i64(t1); } =20 + tcg_temp_free_i64(next); + if (is_imm) { + tcg_temp_free_i64(cdest); + } ret =3D DISAS_PC_UPDATED; } =20 @@ -5891,7 +5910,8 @@ static void in2_a2(DisasContext *s, DisasOps *o) =20 static void in2_ri2(DisasContext *s, DisasOps *o) { - o->in2 =3D tcg_const_i64(s->base.pc_next + (int64_t)get_field(s, i2) *= 2); + o->in2 =3D tcg_temp_new_i64(); + gen_psw_addr_disp(s, o->in2, (int64_t)get_field(s, i2) * 2); } #define SPEC_in2_ri2 0 =20 @@ -6376,8 +6396,11 @@ static DisasJumpType translate_one(CPUS390XState *en= v, DisasContext *s) =20 #ifndef CONFIG_USER_ONLY if (s->base.tb->flags & FLAG_MASK_PER) { - TCGv_i64 addr =3D tcg_constant_i64(s->base.pc_next); + TCGv_i64 addr =3D tcg_temp_new_i64(); + + gen_psw_addr_disp(s, addr, 0); gen_helper_per_ifetch(cpu_env, addr); + tcg_temp_free_i64(addr); } #endif =20 @@ -6506,7 +6529,7 @@ 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 =3D=3D DISAS_NEXT || ret =3D=3D DISAS_TOO_MANY) { - tcg_gen_movi_i64(psw_addr, s->pc_tmp); + gen_psw_addr_disp(s, psw_addr, s->ilen); } =20 /* Call the helper to check for a possible PER exception. */ --=20 2.34.1