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([2605:ef80:8080:8162:afc7:8362:2616:ac15]) by smtp.gmail.com with ESMTPSA id j16-20020a05620a289000b006b615cd8c13sm6075914qkp.106.2022.10.01.07.10.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 01 Oct 2022 07:10:19 -0700 (PDT) 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; bh=7viKvjcXaJUmhs/jWaqdA+F5KcYGZ9/wwoS7PEa0LGk=; b=xlu/zBoerwn3J0ipLwfI88KsTRacDBFIYJMTM+HCyp6Sxfx60xRt3WX8Ld2AgNttTj 610E7ZZv7D7M/aOGv1Mt49ostMIv4Ges4IDod9We6QO5UxkC2oo/OOQ52V7U8Tb9M9z6 98O0Z0k9q/hwjbxT5SstM8gDdTQIQUbJuOm3k02aiQLt25/NDpJycNHrrHoX/5ru9b9S zMt/At0L20JNCpjzkXd0NaltpZ7CvSHqz5Vu6e1GaajFFqee1UEycI6XxQcB6abp8Zbq fkq9M7lYLkb1JwXlt1lacM4V0kvsszP9rKC/gCzU5qYsM4cknHtwSqL2caqKj/+Z9pr7 qQjA== 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; bh=7viKvjcXaJUmhs/jWaqdA+F5KcYGZ9/wwoS7PEa0LGk=; b=pPM8beKp8MQyNIDi/nI9Bg/L9iVkK52bDuZsZdSL8BijbhK76t+ho9pIBZhbEL+22a isnwHdr/LjAF03rSMVUwg4AwKFmwFItWJSnpYT7HO6zyyUOQm8vmro3gMfA7Q46ApCNf d+CD4Rz9Da2qbW9oSIPhviYOPSkphWmq1itGbiJFN3tJcCQMzsebahagdTAdAIzsOQ+6 j6xTMcDD8+k3kN7WtZY4L9JxftCx/l4nwIy3WEHuXn0lyzONDfvOebYEBlgMQGB/IgoD ZI/VzcB5E1MVLDG4y4fLCGzHQ5cPbcJkQlA6zwLN1NjmfChWV4P0OH9SByAT2n6NVhcs kDQQ== X-Gm-Message-State: ACrzQf1PhxeHXxhGAAtwv9YI6ZP621Er4mdp6GvgC7xMJdRS30mtstaf HI2MCDDNbKc5FkaM8J3TJgURG1lGp4WYgx1g X-Google-Smtp-Source: AMsMyM6kRBt2zLwf0KrX6dcSXqlWfPlfJx9bsTAKw97w8NC914BO+GQxYqgRnEaDI/YOfwIxMikNig== X-Received: by 2002:a37:5343:0:b0:6cf:9ee8:7cda with SMTP id h64-20020a375343000000b006cf9ee87cdamr9366003qkb.528.1664633419758; Sat, 01 Oct 2022 07:10:19 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: pbonzini@redhat.com Subject: [PATCH v3 16/26] target/i386: Use DISAS_TOO_MANY to exit after gen_io_start Date: Sat, 1 Oct 2022 07:09:25 -0700 Message-Id: <20221001140935.465607-17-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221001140935.465607-1-richard.henderson@linaro.org> References: <20221001140935.465607-1-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::730; envelope-from=richard.henderson@linaro.org; helo=mail-qk1-x730.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" X-ZohoMail-DKIM: pass (identity @linaro.org) X-ZM-MESSAGEID: 1664635014514100001 Content-Type: text/plain; charset="utf-8" We can set is_jmp early, using only one if, and let that be overwritten by gen_rep*'s calls to gen_jmp_tb. Reviewed-by: Paolo Bonzini Signed-off-by: Richard Henderson --- target/i386/tcg/translate.c | 42 +++++++++---------------------------- 1 file changed, 10 insertions(+), 32 deletions(-) diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index be29ea7a03..11aaba8a65 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -5660,14 +5660,12 @@ static bool disas_insn(DisasContext *s, CPUState *c= pu) } if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } gen_helper_rdrand(s->T0, cpu_env); rm =3D (modrm & 7) | REX_B(s); gen_op_mov_reg_v(s, dflag, rm, s->T0); set_cc_op(s, CC_OP_EFLAGS); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } break; =20 default: @@ -6704,15 +6702,12 @@ static bool disas_insn(DisasContext *s, CPUState *c= pu) } if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) { gen_repz_ins(s, ot); - /* jump generated by gen_repz_ins */ } else { gen_ins(s, ot); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } } break; case 0x6e: /* outsS */ @@ -6725,15 +6720,12 @@ static bool disas_insn(DisasContext *s, CPUState *c= pu) } if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } if (prefixes & (PREFIX_REPZ | PREFIX_REPNZ)) { gen_repz_outs(s, ot); - /* jump generated by gen_repz_outs */ } else { gen_outs(s, ot); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } } break; =20 @@ -6750,13 +6742,11 @@ static bool disas_insn(DisasContext *s, CPUState *c= pu) } if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } gen_helper_in_func(ot, s->T1, s->tmp2_i32); gen_op_mov_reg_v(s, ot, R_EAX, s->T1); gen_bpt_io(s, s->tmp2_i32, ot); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } break; case 0xe6: case 0xe7: @@ -6768,14 +6758,12 @@ static bool disas_insn(DisasContext *s, CPUState *c= pu) } if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } gen_op_mov_v_reg(s, ot, s->T1, R_EAX); tcg_gen_trunc_tl_i32(s->tmp3_i32, s->T1); gen_helper_out_func(ot, s->tmp2_i32, s->tmp3_i32); gen_bpt_io(s, s->tmp2_i32, ot); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } break; case 0xec: case 0xed: @@ -6787,13 +6775,11 @@ static bool disas_insn(DisasContext *s, CPUState *c= pu) } if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } gen_helper_in_func(ot, s->T1, s->tmp2_i32); gen_op_mov_reg_v(s, ot, R_EAX, s->T1); gen_bpt_io(s, s->tmp2_i32, ot); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } break; case 0xee: case 0xef: @@ -6805,14 +6791,12 @@ static bool disas_insn(DisasContext *s, CPUState *c= pu) } if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } gen_op_mov_v_reg(s, ot, s->T1, R_EAX); tcg_gen_trunc_tl_i32(s->tmp3_i32, s->T1); gen_helper_out_func(ot, s->tmp2_i32, s->tmp3_i32); gen_bpt_io(s, s->tmp2_i32, ot); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } break; =20 /************************/ @@ -7478,11 +7462,9 @@ static bool disas_insn(DisasContext *s, CPUState *cp= u) gen_update_eip_cur(s); if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } gen_helper_rdtsc(cpu_env); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } break; case 0x133: /* rdpmc */ gen_update_cc_op(s); @@ -7939,11 +7921,9 @@ static bool disas_insn(DisasContext *s, CPUState *cp= u) gen_update_eip_cur(s); if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } gen_helper_rdtscp(cpu_env); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } break; =20 default: @@ -8307,6 +8287,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu) =20 if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { gen_io_start(); + s->base.is_jmp =3D DISAS_TOO_MANY; } if (b & 2) { gen_svm_check_intercept(s, SVM_EXIT_WRITE_CR0 + reg); @@ -8317,9 +8298,6 @@ static bool disas_insn(DisasContext *s, CPUState *cpu) gen_svm_check_intercept(s, SVM_EXIT_READ_CR0 + reg); gen_helper_read_crN(s->T0, cpu_env, tcg_constant_i32(reg)); gen_op_mov_reg_v(s, ot, rm, s->T0); - if (tb_cflags(s->base.tb) & CF_USE_ICOUNT) { - gen_jmp(s, s->pc - s->cs_base); - } } break; =20 --=20 2.34.1