From patchwork Fri Feb 22 14:10:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bastian Koppelmann X-Patchwork-Id: 10826229 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 5F3251805 for ; Fri, 22 Feb 2019 14:43:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4D28E323D9 for ; Fri, 22 Feb 2019 14:43:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 40C0532481; Fri, 22 Feb 2019 14:43:30 +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=-2.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI autolearn=ham version=3.3.1 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id A6072323D9 for ; Fri, 22 Feb 2019 14:43:29 +0000 (UTC) Received: from localhost ([127.0.0.1]:51896 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gxC2y-0005Lt-Rf for patchwork-qemu-devel@patchwork.kernel.org; Fri, 22 Feb 2019 09:43:28 -0500 Received: from eggs.gnu.org ([209.51.188.92]:41310) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gxBZe-0006Ia-6f for qemu-devel@nongnu.org; Fri, 22 Feb 2019 09:13:12 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gxBZV-0000WH-9W for qemu-devel@nongnu.org; Fri, 22 Feb 2019 09:13:06 -0500 Received: from mail.uni-paderborn.de ([131.234.142.9]:42450) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gxBZG-0007In-TI; Fri, 22 Feb 2019 09:12:52 -0500 Received: from magmaria.uni-paderborn.de ([131.234.189.24] helo=localhost.localdomain) by mail.uni-paderborn.de with esmtp (Exim 4.89 telepax) id 1gxBYW-000219-4i; Fri, 22 Feb 2019 15:12:00 +0100 Received: from mail.uni-paderborn.de by magmaria with queue id 3163445-3; Fri, 22 Feb 2019 14:11:59 GMT X-Envelope-From: From: Bastian Koppelmann To: sagark@eecs.berkeley.edu, palmer@sifive.com, kbastian@mail.uni-paderborn.de Date: Fri, 22 Feb 2019 15:10:24 +0100 Message-Id: <20190222141024.22217-35-kbastian@mail.uni-paderborn.de> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190222141024.22217-1-kbastian@mail.uni-paderborn.de> References: <20190222141024.22217-1-kbastian@mail.uni-paderborn.de> MIME-Version: 1.0 X-PMX-Version: 6.4.6.2792898, Antispam-Engine: 2.7.2.2107409, Antispam-Data: 2019.2.22.140315, AntiVirus-Engine: 5.58.0, AntiVirus-Data: 2019.2.19.5580002 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 v8 34/34] target/riscv: Remaining rvc insn reuse 32 bit translators 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: qemu-riscv@nongnu.org, peer.adelt@hni.uni-paderborn.de, richard.henderson@linaro.org, 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 only one translate functions of rvc needs to handle special cases. For the other rvc insns we can remove the extra layer of indirection. Reviewed-by: Richard Henderson Signed-off-by: Bastian Koppelmann --- target/riscv/insn16.decode | 37 +++++++++---------- target/riscv/insn_trans/trans_rvc.inc.c | 48 ------------------------- 2 files changed, 17 insertions(+), 68 deletions(-) diff --git a/target/riscv/insn16.decode b/target/riscv/insn16.decode index 98dd672c7f..d88a0c78ab 100644 --- a/target/riscv/insn16.decode +++ b/target/riscv/insn16.decode @@ -46,19 +46,15 @@ &i imm rs1 rd !extern &s imm rs1 rs2 !extern &j imm rd !extern +&b imm rs2 rs1 !extern # Argument sets: &ci imm rd &ciw nzuimm rd &cs_dw uimm rs1 rs2 -&cb imm rs1 &cr rd rs2 -&c_j imm &c_shift shamt rd -&c_ld uimm rd -&c_sd uimm rs2 - &c_addi16sp_lui imm_lui imm_addi16sp rd # Formats 16: @@ -70,20 +66,21 @@ @cs_2 ... ... ... .. ... .. &r rd=%rs1_3 rs1=%rs1_3 rs2=%rs2_3 @cs_d ... ... ... .. ... .. &s imm=%uimm_cl_d rs1=%rs1_3 rs2=%rs2_3 @cs_w ... ... ... .. ... .. &s imm=%uimm_cl_w rs1=%rs1_3 rs2=%rs2_3 -@cb ... ... ... .. ... .. &cb imm=%imm_cb rs1=%rs1_3 -@cj ... ........... .. &c_j imm=%imm_cj +@cb ... ... ... .. ... .. &b imm=%imm_cb rs1=%rs1_3 rs2=0 +@cj ... ........... .. &j imm=%imm_cj rd=0 -@c_ld ... . ..... ..... .. &c_ld uimm=%uimm_6bit_ld %rd -@c_lw ... . ..... ..... .. &c_ld uimm=%uimm_6bit_lw %rd -@c_sd ... . ..... ..... .. &c_sd uimm=%uimm_6bit_sd rs2=%rs2_5 -@c_sw ... . ..... ..... .. &c_sd uimm=%uimm_6bit_sw rs2=%rs2_5 +@c_ld ... . ..... ..... .. &i imm=%uimm_6bit_ld %rd rs1=2 +@c_lw ... . ..... ..... .. &i imm=%uimm_6bit_lw %rd rs1=2 +@c_sd ... . ..... ..... .. &s imm=%uimm_6bit_sd rs1=2 rs2=%rs2_5 +@c_sw ... . ..... ..... .. &s imm=%uimm_6bit_sw rs1=2 rs2=%rs2_5 @c_addi16sp_lui ... . ..... ..... .. &c_addi16sp_lui %imm_lui %imm_addi16sp %rd @c_shift ... . .. ... ..... .. &c_shift rd=%rs1_3 shamt=%nzuimm_6bit @c_shift2 ... . .. ... ..... .. &c_shift rd=%rd shamt=%nzuimm_6bit -@c_andi ... . .. ... ..... .. &ci imm=%imm_ci rd=%rs1_3 +@c_andi ... . .. ... ..... .. &i imm=%imm_ci rd=%rs1_3 rs1=%rs1_3 + # *** RV64C Standard Extension (Quadrant 0) *** c_addi4spn 000 ........ ... 00 @ciw @@ -98,20 +95,20 @@ c_li 010 . ..... ..... 01 @ci c_addi16sp_lui 011 . ..... ..... 01 @c_addi16sp_lui # shares opc with C.LUI c_srli 100 . 00 ... ..... 01 @c_shift c_srai 100 . 01 ... ..... 01 @c_shift -c_andi 100 . 10 ... ..... 01 @c_andi +andi 100 . 10 ... ..... 01 @c_andi sub 100 0 11 ... 00 ... 01 @cs_2 xor 100 0 11 ... 01 ... 01 @cs_2 or 100 0 11 ... 10 ... 01 @cs_2 and 100 0 11 ... 11 ... 01 @cs_2 -c_j 101 ........... 01 @cj -c_beqz 110 ... ... ..... 01 @cb -c_bnez 111 ... ... ..... 01 @cb +jal 101 ........... 01 @cj # c_j +beq 110 ... ... ..... 01 @cb # c_beqz +bne 111 ... ... ..... 01 @cb # c_bnez # *** RV64C Standard Extension (Quadrant 2) *** c_slli 000 . ..... ..... 10 @c_shift2 -c_fldsp 001 . ..... ..... 10 @c_ld -c_lwsp 010 . ..... ..... 10 @c_lw +fld 001 . ..... ..... 10 @c_ld # fldsp +lw 010 . ..... ..... 10 @c_lw # lwsp c_jr_mv 100 0 ..... ..... 10 @cr c_ebreak_jalr_add 100 1 ..... ..... 10 @cr -c_fsdsp 101 ...... ..... 10 @c_sd -c_swsp 110 . ..... ..... 10 @c_sw +fsd 101 ...... ..... 10 @c_sd # fsdsp +sw 110 . ..... ..... 10 @c_sw # swsp diff --git a/target/riscv/insn_trans/trans_rvc.inc.c b/target/riscv/insn_trans/trans_rvc.inc.c index db9119ec9b..631e72c8b5 100644 --- a/target/riscv/insn_trans/trans_rvc.inc.c +++ b/target/riscv/insn_trans/trans_rvc.inc.c @@ -98,30 +98,6 @@ static bool trans_c_srai(DisasContext *ctx, arg_c_srai *a) return trans_srai(ctx, &arg); } -static bool trans_c_andi(DisasContext *ctx, arg_c_andi *a) -{ - arg_andi arg = { .rd = a->rd, .rs1 = a->rd, .imm = a->imm }; - return trans_andi(ctx, &arg); -} - -static bool trans_c_j(DisasContext *ctx, arg_c_j *a) -{ - arg_jal arg = { .rd = 0, .imm = a->imm }; - return trans_jal(ctx, &arg); -} - -static bool trans_c_beqz(DisasContext *ctx, arg_c_beqz *a) -{ - arg_beq arg = { .rs1 = a->rs1, .rs2 = 0, .imm = a->imm }; - return trans_beq(ctx, &arg); -} - -static bool trans_c_bnez(DisasContext *ctx, arg_c_bnez *a) -{ - arg_bne arg = { .rs1 = a->rs1, .rs2 = 0, .imm = a->imm }; - return trans_bne(ctx, &arg); -} - static bool trans_c_slli(DisasContext *ctx, arg_c_slli *a) { int shamt = a->shamt; @@ -138,18 +114,6 @@ static bool trans_c_slli(DisasContext *ctx, arg_c_slli *a) return trans_slli(ctx, &arg); } -static bool trans_c_fldsp(DisasContext *ctx, arg_c_fldsp *a) -{ - arg_fld arg = { .rd = a->rd, .rs1 = 2, .imm = a->uimm }; - return trans_fld(ctx, &arg); -} - -static bool trans_c_lwsp(DisasContext *ctx, arg_c_lwsp *a) -{ - arg_lw arg = { .rd = a->rd, .rs1 = 2, .imm = a->uimm }; - return trans_lw(ctx, &arg); -} - static bool trans_c_jr_mv(DisasContext *ctx, arg_c_jr_mv *a) { if (a->rd != 0 && a->rs2 == 0) { @@ -183,15 +147,3 @@ static bool trans_c_ebreak_jalr_add(DisasContext *ctx, arg_c_ebreak_jalr_add *a) } return false; } - -static bool trans_c_fsdsp(DisasContext *ctx, arg_c_fsdsp *a) -{ - arg_fsd arg = { .rs1 = 2, .rs2 = a->rs2, .imm = a->uimm }; - return trans_fsd(ctx, &arg); -} - -static bool trans_c_swsp(DisasContext *ctx, arg_c_swsp *a) -{ - arg_sw arg = { .rs1 = 2, .rs2 = a->rs2, .imm = a->uimm }; - return trans_sw(ctx, &arg); -}