From nobody Tue Feb 10 13:36:12 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1692264748328969.7100292646084; Thu, 17 Aug 2023 02:32:28 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qWZME-0000z3-Qt; Thu, 17 Aug 2023 05:31:58 -0400 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 1qWZM1-0007Nz-A9 for qemu-devel@nongnu.org; Thu, 17 Aug 2023 05:31:47 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qWZLs-0002Zj-RF for qemu-devel@nongnu.org; Thu, 17 Aug 2023 05:31:44 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8AxEvD06N1kYnUZAA--.51413S3; Thu, 17 Aug 2023 17:31:32 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8AxTSPs6N1kjKdcAA--.12060S11; Thu, 17 Aug 2023 17:31:31 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, c@jia.je, philmd@linaro.org, maobibo@loongson.cn, yangxiaojuan@loongson.cn, yijun@loongson.cn, shenjinyang@loongson.cn Subject: [PATCH v3 09/18] target/loongarch: Sign extend results in VA32 mode Date: Thu, 17 Aug 2023 17:31:12 +0800 Message-Id: <20230817093121.1053890-10-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230817093121.1053890-1-gaosong@loongson.cn> References: <20230817093121.1053890-1-gaosong@loongson.cn> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: AQAAf8AxTSPs6N1kjKdcAA--.12060S11 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== 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=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, 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-ZM-MESSAGEID: 1692264750095100001 Content-Type: text/plain; charset="utf-8" From: Jiajie Chen In VA32 mode, BL, JIRL and PC* instructions should sign-extend the low 32 bit result to 64 bits. Signed-off-by: Jiajie Chen Reviewed-by: Richard Henderson Signed-off-by: Song Gao --- target/loongarch/insn_trans/trans_arith.c.inc | 2 +- target/loongarch/insn_trans/trans_branch.c.inc | 4 ++-- target/loongarch/translate.c | 8 ++++++++ 3 files changed, 11 insertions(+), 3 deletions(-) diff --git a/target/loongarch/insn_trans/trans_arith.c.inc b/target/loongar= ch/insn_trans/trans_arith.c.inc index 43d6cf261d..2aea4e41d5 100644 --- a/target/loongarch/insn_trans/trans_arith.c.inc +++ b/target/loongarch/insn_trans/trans_arith.c.inc @@ -72,7 +72,7 @@ static bool gen_pc(DisasContext *ctx, arg_r_i *a, target_ulong (*func)(target_ulong, int)) { TCGv dest =3D gpr_dst(ctx, a->rd, EXT_NONE); - target_ulong addr =3D func(ctx->base.pc_next, a->imm); + target_ulong addr =3D make_address_pc(ctx, func(ctx->base.pc_next, a->= imm)); =20 tcg_gen_movi_tl(dest, addr); gen_set_gpr(a->rd, dest, EXT_NONE); diff --git a/target/loongarch/insn_trans/trans_branch.c.inc b/target/loonga= rch/insn_trans/trans_branch.c.inc index 3ad34bcc05..2e35572cea 100644 --- a/target/loongarch/insn_trans/trans_branch.c.inc +++ b/target/loongarch/insn_trans/trans_branch.c.inc @@ -12,7 +12,7 @@ static bool trans_b(DisasContext *ctx, arg_b *a) =20 static bool trans_bl(DisasContext *ctx, arg_bl *a) { - tcg_gen_movi_tl(cpu_gpr[1], ctx->base.pc_next + 4); + tcg_gen_movi_tl(cpu_gpr[1], make_address_pc(ctx, ctx->base.pc_next + 4= )); gen_goto_tb(ctx, 0, ctx->base.pc_next + a->offs); ctx->base.is_jmp =3D DISAS_NORETURN; return true; @@ -25,7 +25,7 @@ static bool trans_jirl(DisasContext *ctx, arg_jirl *a) =20 TCGv addr =3D make_address_i(ctx, src1, a->imm); tcg_gen_mov_tl(cpu_pc, addr); - tcg_gen_movi_tl(dest, ctx->base.pc_next + 4); + tcg_gen_movi_tl(dest, make_address_pc(ctx, ctx->base.pc_next + 4)); gen_set_gpr(a->rd, dest, EXT_NONE); tcg_gen_lookup_and_goto_ptr(); ctx->base.is_jmp =3D DISAS_NORETURN; diff --git a/target/loongarch/translate.c b/target/loongarch/translate.c index 689da19ed0..de7c1c5d1f 100644 --- a/target/loongarch/translate.c +++ b/target/loongarch/translate.c @@ -236,6 +236,14 @@ static TCGv make_address_i(DisasContext *ctx, TCGv bas= e, target_long ofs) return make_address_x(ctx, base, addend); } =20 +static uint64_t make_address_pc(DisasContext *ctx, uint64_t addr) +{ + if (ctx->va32) { + addr =3D (int32_t)addr; + } + return addr; +} + #include "decode-insns.c.inc" #include "insn_trans/trans_arith.c.inc" #include "insn_trans/trans_shift.c.inc" --=20 2.39.1