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[123.193.74.252]) by smtp.gmail.com with ESMTPSA id z13sm4271680pfq.130.2021.10.15.00.48.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 Oct 2021 00:48:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=jUYCjBb813bVniRs97243ht1jTQgrvPcs1XgjQ8AQd0=; b=dGzW0RQRKQcMa4j+sShE6Yx3HsSSpzz/3nUI27GRuBRJl+7YrEwmmqTd3cABt/7R/n Mcy8tYozf0ZQnwaFVlifoBwH4p6HMPkZQPJ9Bm0wRVKDX3Ot+A2icJPB8JaFUoIrq0eg Ur1R1/XWIXnTn/bmng+IiDj5GqaXXgoxW7EAsFSXdK+JjdB3XF6Eqojt35G/ZFsIAgcz 0r9R4QMor2cGccEWk54V2oKKjbSYdi6Zued6pRs4grk3cps7q5Vo0KX1ujjql27FjX3k mQpV0woIq4iFz5NMCPWW7sx89Smi8XSNTNJ+4p1+lW6cvJIMyb9vYrrgvjT4jrZyT/5p sJfQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=jUYCjBb813bVniRs97243ht1jTQgrvPcs1XgjQ8AQd0=; b=vipiUGRi28MY+FiNE08S1lOFLsuRnUpmJU/QwNHUv09yNkrJFwstIyDJXwlrsBTTHH nSmIwHGIJ6HZndsU04UGFblm9GUS3SrQnWJ5FO1soD/l7w9xmhqsNnJn6yGdOF1B4Ra1 uovnzvMh3AD6svHKGZJ2KYspWl6vEytuu90NZUr7Lpu45jxvK4Gh70R+w1uhYrNj2WZM poOa4bv5CQ9nsuI/1eZ5B25M8b+O8FxQCm3xjoYnhfMvuiyKv5Dkb1mqZAyG9pzDEcOG DjhTLUuVH+tOtMD1TMHNElF7PuzctM9yfx+HEZfD6EC7BsKJ89omrPiNgdfJUGls5OyV NupA== X-Gm-Message-State: AOAM531b0kTS9OkiVc4VtXESosKBio2ci0qJNFBxKZuA0fXM0oH2qCWR 4jQZMy45FqG9QhdCXHkun5yBY7nv56zdmDjw X-Google-Smtp-Source: ABdhPJwsR5buWBp6m6UIQ4GQsodCuK9av4XXiGo4u4ljZKRoCK2CpeMOyyJQjm/2QV3tTHdYKfdIkQ== X-Received: by 2002:a63:85c6:: with SMTP id u189mr7794704pgd.381.1634284137207; Fri, 15 Oct 2021 00:48:57 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [PATCH v8 34/78] target/riscv: rvv-1.0: allow load element with sign-extended Date: Fri, 15 Oct 2021 15:45:42 +0800 Message-Id: <20211015074627.3957162-42-frank.chang@sifive.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211015074627.3957162-1-frank.chang@sifive.com> References: <20211015074627.3957162-1-frank.chang@sifive.com> 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::52c; envelope-from=frank.chang@sifive.com; helo=mail-pg1-x52c.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=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Frank Chang , Palmer Dabbelt , Alistair Francis , Bin Meng , Richard Henderson Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) X-ZM-MESSAGEID: 1634286592672100001 Content-Type: text/plain; charset="utf-8" From: Frank Chang For some vector instructions (e.g. vmv.s.x), the element is loaded with sign-extended. Signed-off-by: Frank Chang Reviewed-by: Richard Henderson Reviewed-by: Alistair Francis --- target/riscv/insn_trans/trans_rvv.c.inc | 32 +++++++++++++++++-------- 1 file changed, 22 insertions(+), 10 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_tr= ans/trans_rvv.c.inc index 3751496676f..31ea231b3be 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -2824,17 +2824,29 @@ static bool trans_vid_v(DisasContext *s, arg_vid_v = *a) /* Integer Extract Instruction */ =20 static void load_element(TCGv_i64 dest, TCGv_ptr base, - int ofs, int sew) + int ofs, int sew, bool sign) { switch (sew) { case MO_8: - tcg_gen_ld8u_i64(dest, base, ofs); + if (!sign) { + tcg_gen_ld8u_i64(dest, base, ofs); + } else { + tcg_gen_ld8s_i64(dest, base, ofs); + } break; case MO_16: - tcg_gen_ld16u_i64(dest, base, ofs); + if (!sign) { + tcg_gen_ld16u_i64(dest, base, ofs); + } else { + tcg_gen_ld16s_i64(dest, base, ofs); + } break; case MO_32: - tcg_gen_ld32u_i64(dest, base, ofs); + if (!sign) { + tcg_gen_ld32u_i64(dest, base, ofs); + } else { + tcg_gen_ld32s_i64(dest, base, ofs); + } break; case MO_64: tcg_gen_ld_i64(dest, base, ofs); @@ -2889,7 +2901,7 @@ static void vec_element_loadx(DisasContext *s, TCGv_i= 64 dest, =20 /* Perform the load. */ load_element(dest, base, - vreg_ofs(s, vreg), s->sew); + vreg_ofs(s, vreg), s->sew, false); tcg_temp_free_ptr(base); tcg_temp_free_i32(ofs); =20 @@ -2905,9 +2917,9 @@ static void vec_element_loadx(DisasContext *s, TCGv_i= 64 dest, } =20 static void vec_element_loadi(DisasContext *s, TCGv_i64 dest, - int vreg, int idx) + int vreg, int idx, bool sign) { - load_element(dest, cpu_env, endian_ofs(s, vreg, idx), s->sew); + load_element(dest, cpu_env, endian_ofs(s, vreg, idx), s->sew, sign); } =20 static bool trans_vext_x_v(DisasContext *s, arg_r *a) @@ -2917,7 +2929,7 @@ static bool trans_vext_x_v(DisasContext *s, arg_r *a) =20 if (a->rs1 =3D=3D 0) { /* Special case vmv.x.s rd, vs2. */ - vec_element_loadi(s, tmp, a->rs2, 0); + vec_element_loadi(s, tmp, a->rs2, 0, false); } else { /* This instruction ignores LMUL and vector register groups */ int vlmax =3D s->vlen >> (3 + s->sew); @@ -2999,7 +3011,7 @@ static bool trans_vfmv_f_s(DisasContext *s, arg_vfmv_= f_s *a) (s->mstatus_fs !=3D 0) && (s->sew !=3D 0)) { unsigned int len =3D 8 << s->sew; =20 - vec_element_loadi(s, cpu_fpr[a->rd], a->rs2, 0); + vec_element_loadi(s, cpu_fpr[a->rd], a->rs2, 0, false); if (len < 64) { tcg_gen_ori_i64(cpu_fpr[a->rd], cpu_fpr[a->rd], MAKE_64BIT_MASK(len, 64 - len)); @@ -3101,7 +3113,7 @@ static bool trans_vrgather_vx(DisasContext *s, arg_rm= rr *a) TCGv_i64 dest =3D tcg_temp_new_i64(); =20 if (a->rs1 =3D=3D 0) { - vec_element_loadi(s, dest, a->rs2, 0); + vec_element_loadi(s, dest, a->rs2, 0, false); } else { vec_element_loadx(s, dest, a->rs2, cpu_gpr[a->rs1], vlmax); } --=20 2.25.1