From patchwork Fri Oct 12 17:30:37 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastian Koppelmann X-Patchwork-Id: 10639007 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7BB15112B for ; Fri, 12 Oct 2018 17:36:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6A0282C1FF for ; Fri, 12 Oct 2018 17:36:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5DA772C206; Fri, 12 Oct 2018 17:36:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 0007E2C1FF for ; Fri, 12 Oct 2018 17:36:38 +0000 (UTC) Received: from localhost ([::1]:41913 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gB1Mc-0005fO-5B for patchwork-qemu-devel@patchwork.kernel.org; Fri, 12 Oct 2018 13:36:38 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39897) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gB1Hj-0001rR-BO for qemu-devel@nongnu.org; Fri, 12 Oct 2018 13:31:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gB1Hh-0000J6-ST for qemu-devel@nongnu.org; Fri, 12 Oct 2018 13:31:35 -0400 Received: from mail.uni-paderborn.de ([131.234.142.9]:37120) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gB1Hf-00005K-RE for qemu-devel@nongnu.org; Fri, 12 Oct 2018 13:31:33 -0400 Received: from wormulon.uni-paderborn.de ([131.234.189.22] helo=localhost.localdomain) by mail.uni-paderborn.de with esmtp (Exim 4.89 telepax) id 1gB1HR-0001Fv-5j; Fri, 12 Oct 2018 19:31:17 +0200 Received: from mail.uni-paderborn.de by wormulon with queue id 2934320-5; Fri, 12 Oct 2018 17:31:17 GMT X-Envelope-From: Received: from aftr-95-222-26-80.unity-media.net ([95.222.26.80] helo=schnipp.lan) by mail.uni-paderborn.de with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89 nylar) id 1gB1HR-0006OT-O8; Fri, 12 Oct 2018 19:31:17 +0200 From: Bastian Koppelmann To: mjc@sifive.com, palmer@sifive.com, sagark@eecs.berkeley.edu, kbastian@mail.uni-paderborn.de Date: Fri, 12 Oct 2018 19:30:37 +0200 Message-Id: <20181012173047.25420-19-kbastian@mail.uni-paderborn.de> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181012173047.25420-1-kbastian@mail.uni-paderborn.de> References: <20181012173047.25420-1-kbastian@mail.uni-paderborn.de> MIME-Version: 1.0 X-PMX-Version: 6.4.5.2775670, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2018.10.12.172416, AntiVirus-Engine: 5.53.0, AntiVirus-Data: 2018.10.10.5530001 X-IMT-Spam-Score: 0.0 () X-IMT-Authenticated-Sender: X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 131.234.142.9 Subject: [Qemu-devel] [PATCH 18/28] target/riscv: Remove gen_jalr() X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peer.adelt@hni.uni-paderborn.de, Alistair.Francis@wdc.com, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" X-Virus-Scanned: ClamAV using ClamSMTP trans_jalr() is the only caller, so move the code into trans_jalr(). Signed-off-by: Bastian Koppelmann Signed-off-by: Peer Adelt Reviewed-by: Richard Henderson --- target/riscv/insn_trans/trans_rvi.inc.c | 27 +++++++++++++++++- target/riscv/translate.c | 38 ------------------------- 2 files changed, 26 insertions(+), 39 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvi.inc.c b/target/riscv/insn_trans/trans_rvi.inc.c index f5abec9b55..2668beb990 100644 --- a/target/riscv/insn_trans/trans_rvi.inc.c +++ b/target/riscv/insn_trans/trans_rvi.inc.c @@ -43,8 +43,33 @@ static bool trans_jal(DisasContext *ctx, arg_jal *a, uint32_t insn) static bool trans_jalr(DisasContext *ctx, arg_jalr *a, uint32_t insn) { + /* no chaining with JALR */ + TCGLabel *misaligned = NULL; + TCGv t0 = tcg_temp_new(); CPURISCVState *env = current_cpu->env_ptr; - gen_jalr(env, ctx, OPC_RISC_JALR, a->rd, a->rs1, a->imm); + + gen_get_gpr(cpu_pc, a->rs1); + tcg_gen_addi_tl(cpu_pc, cpu_pc, a->imm); + tcg_gen_andi_tl(cpu_pc, cpu_pc, (target_ulong)-2); + + if (!riscv_has_ext(env, RVC)) { + misaligned = gen_new_label(); + tcg_gen_andi_tl(t0, cpu_pc, 0x2); + tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0x0, misaligned); + } + + if (a->rd != 0) { + tcg_gen_movi_tl(cpu_gpr[a->rd], ctx->pc_succ_insn); + } + tcg_gen_lookup_and_goto_ptr(); + + if (misaligned) { + gen_set_label(misaligned); + gen_exception_inst_addr_mis(ctx); + } + ctx->base.is_jmp = DISAS_NORETURN; + + tcg_temp_free(t0); return true; } diff --git a/target/riscv/translate.c b/target/riscv/translate.c index 6b4a0430fd..a0da694aa3 100644 --- a/target/riscv/translate.c +++ b/target/riscv/translate.c @@ -488,44 +488,6 @@ static void gen_jal(CPURISCVState *env, DisasContext *ctx, int rd, ctx->base.is_jmp = DISAS_NORETURN; } -static void gen_jalr(CPURISCVState *env, DisasContext *ctx, uint32_t opc, - int rd, int rs1, target_long imm) -{ - /* no chaining with JALR */ - TCGLabel *misaligned = NULL; - TCGv t0 = tcg_temp_new(); - - switch (opc) { - case OPC_RISC_JALR: - gen_get_gpr(cpu_pc, rs1); - tcg_gen_addi_tl(cpu_pc, cpu_pc, imm); - tcg_gen_andi_tl(cpu_pc, cpu_pc, (target_ulong)-2); - - if (!riscv_has_ext(env, RVC)) { - misaligned = gen_new_label(); - tcg_gen_andi_tl(t0, cpu_pc, 0x2); - tcg_gen_brcondi_tl(TCG_COND_NE, t0, 0x0, misaligned); - } - - if (rd != 0) { - tcg_gen_movi_tl(cpu_gpr[rd], ctx->pc_succ_insn); - } - tcg_gen_lookup_and_goto_ptr(); - - if (misaligned) { - gen_set_label(misaligned); - gen_exception_inst_addr_mis(ctx); - } - ctx->base.is_jmp = DISAS_NORETURN; - break; - - default: - gen_exception_illegal(ctx); - break; - } - tcg_temp_free(t0); -} - static void gen_branch(CPURISCVState *env, DisasContext *ctx, uint32_t opc, int rs1, int rs2, target_long bimm) {