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[174.21.71.225]) by smtp.gmail.com with ESMTPSA id b15-20020a170903228f00b00163552a0953sm4033534plh.159.2022.05.27.11.23.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 May 2022 11:23:13 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: qemu-arm@nongnu.org Subject: [PATCH 072/114] target/arm: Reject add/sub w/ shifted byte early Date: Fri, 27 May 2022 11:18:25 -0700 Message-Id: <20220527181907.189259-73-richard.henderson@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20220527181907.189259-1-richard.henderson@linaro.org> References: <20220527181907.189259-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::534; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x534.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, T_SCC_BODY_TEXT_LINE=-0.01 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Remove the unparsed extractions in trans_ADD_zzi, trans_SUBR_zzi, and do_zzi_sat which are intended to reject an 8-bit shift of an 8-bit constant for 8-bit element. Signed-off-by: Richard Henderson --- target/arm/sve.decode | 35 ++++++++++++++++++++++++++++------- target/arm/translate-sve.c | 9 --------- 2 files changed, 28 insertions(+), 16 deletions(-) diff --git a/target/arm/sve.decode b/target/arm/sve.decode index c02da0a082..8cff63cf25 100644 --- a/target/arm/sve.decode +++ b/target/arm/sve.decode @@ -793,13 +793,34 @@ FDUP 00100101 esz:2 111 00 1110 imm:8 rd:5 } # SVE integer add/subtract immediate (unpredicated) -ADD_zzi 00100101 .. 100 000 11 . ........ ..... @rdn_sh_i8u -SUB_zzi 00100101 .. 100 001 11 . ........ ..... @rdn_sh_i8u -SUBR_zzi 00100101 .. 100 011 11 . ........ ..... @rdn_sh_i8u -SQADD_zzi 00100101 .. 100 100 11 . ........ ..... @rdn_sh_i8u -UQADD_zzi 00100101 .. 100 101 11 . ........ ..... @rdn_sh_i8u -SQSUB_zzi 00100101 .. 100 110 11 . ........ ..... @rdn_sh_i8u -UQSUB_zzi 00100101 .. 100 111 11 . ........ ..... @rdn_sh_i8u +{ + INVALID 00100101 00 100 000 11 1 -------- ----- + ADD_zzi 00100101 .. 100 000 11 . ........ ..... @rdn_sh_i8u +} +{ + INVALID 00100101 00 100 001 11 1 -------- ----- + SUB_zzi 00100101 .. 100 001 11 . ........ ..... @rdn_sh_i8u +} +{ + INVALID 00100101 00 100 011 11 1 -------- ----- + SUBR_zzi 00100101 .. 100 011 11 . ........ ..... @rdn_sh_i8u +} +{ + INVALID 00100101 00 100 100 11 1 -------- ----- + SQADD_zzi 00100101 .. 100 100 11 . ........ ..... @rdn_sh_i8u +} +{ + INVALID 00100101 00 100 101 11 1 -------- ----- + UQADD_zzi 00100101 .. 100 101 11 . ........ ..... @rdn_sh_i8u +} +{ + INVALID 00100101 00 100 110 11 1 -------- ----- + SQSUB_zzi 00100101 .. 100 110 11 . ........ ..... @rdn_sh_i8u +} +{ + INVALID 00100101 00 100 111 11 1 -------- ----- + UQSUB_zzi 00100101 .. 100 111 11 . ........ ..... @rdn_sh_i8u +} # SVE integer min/max immediate (unpredicated) SMAX_zzi 00100101 .. 101 000 110 ........ ..... @rdn_i8s diff --git a/target/arm/translate-sve.c b/target/arm/translate-sve.c index 14faef0564..bf988cab3e 100644 --- a/target/arm/translate-sve.c +++ b/target/arm/translate-sve.c @@ -3262,9 +3262,6 @@ static bool trans_DUP_i(DisasContext *s, arg_DUP_i *a) static bool trans_ADD_zzi(DisasContext *s, arg_rri_esz *a) { - if (a->esz == 0 && extract32(s->insn, 13, 1)) { - return false; - } return gen_gvec_fn_arg_zzi(s, tcg_gen_gvec_addi, a); } @@ -3305,9 +3302,6 @@ static bool trans_SUBR_zzi(DisasContext *s, arg_rri_esz *a) .scalar_first = true } }; - if (a->esz == 0 && extract32(s->insn, 13, 1)) { - return false; - } if (sve_access_check(s)) { unsigned vsz = vec_full_reg_size(s); tcg_gen_gvec_2s(vec_full_reg_offset(s, a->rd), @@ -3321,9 +3315,6 @@ TRANS_FEAT(MUL_zzi, aa64_sve, gen_gvec_fn_arg_zzi, tcg_gen_gvec_muli, a) static bool do_zzi_sat(DisasContext *s, arg_rri_esz *a, bool u, bool d) { - if (a->esz == 0 && extract32(s->insn, 13, 1)) { - return false; - } if (sve_access_check(s)) { do_sat_addsub_vec(s, a->esz, a->rd, a->rn, tcg_constant_i64(a->imm), u, d); -- 2.34.1