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Fri, 22 Oct 2021 06:39:50 -0700 (PDT) Received: from toolbox.wdc.com (unknown [10.225.165.39]) by usg-ed-osssrv.wdc.com (Postfix) with ESMTPSA id 4HbQSf0VGbz1RtVl; Fri, 22 Oct 2021 06:39:45 -0700 (PDT) From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Richard Henderson , LIU Zhiwei , Alistair Francis Subject: [PULL 14/33] target/riscv: Properly check SEW in amo_op Date: Fri, 22 Oct 2021 23:37:53 +1000 Message-Id: <20211022133812.3972903-15-alistair.francis@opensource.wdc.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20211022133812.3972903-1-alistair.francis@opensource.wdc.com> References: <20211022133812.3972903-1-alistair.francis@opensource.wdc.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=216.71.154.42; envelope-from=prvs=9222bbd82=alistair.francis@opensource.wdc.com; helo=esa4.hgst.iphmx.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 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_MED=-2.3, SPF_HELO_PASS=-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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Richard Henderson We're currently assuming SEW <=3D 3, and the "else" from the SEW =3D=3D 3 must be less. Use a switch and explicitly bound both SEW and SEQ for all cases. Reviewed-by: LIU Zhiwei Reviewed-by: Alistair Francis Signed-off-by: Richard Henderson Message-id: 20211020031709.359469-8-richard.henderson@linaro.org Signed-off-by: Alistair Francis --- target/riscv/insn_trans/trans_rvv.c.inc | 26 +++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-) diff --git a/target/riscv/insn_trans/trans_rvv.c.inc b/target/riscv/insn_= trans/trans_rvv.c.inc index 233131bae1..17ee3babef 100644 --- a/target/riscv/insn_trans/trans_rvv.c.inc +++ b/target/riscv/insn_trans/trans_rvv.c.inc @@ -704,18 +704,20 @@ static bool amo_op(DisasContext *s, arg_rwdvm *a, u= int8_t seq) gen_helper_exit_atomic(cpu_env); s->base.is_jmp =3D DISAS_NORETURN; return true; - } else { - if (s->sew =3D=3D 3) { - if (!is_32bit(s)) { - fn =3D fnsd[seq]; - } else { - /* Check done in amo_check(). */ - g_assert_not_reached(); - } - } else { - assert(seq < ARRAY_SIZE(fnsw)); - fn =3D fnsw[seq]; - } + } + + switch (s->sew) { + case 0 ... 2: + assert(seq < ARRAY_SIZE(fnsw)); + fn =3D fnsw[seq]; + break; + case 3: + /* XLEN check done in amo_check(). */ + assert(seq < ARRAY_SIZE(fnsd)); + fn =3D fnsd[seq]; + break; + default: + g_assert_not_reached(); } =20 data =3D FIELD_DP32(data, VDATA, MLEN, s->mlen); --=20 2.31.1