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[122.116.72.36]) by smtp.gmail.com with ESMTPSA id v8sm6003950pgg.58.2020.09.29.12.08.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2020 12:08:10 -0700 (PDT) From: frank.chang@sifive.com To: qemu-devel@nongnu.org, qemu-riscv@nongnu.org Subject: [RFC v5 49/68] target/riscv: rvv-1.0: slide instructions Date: Wed, 30 Sep 2020 03:04:24 +0800 Message-Id: <20200929190448.31116-50-frank.chang@sifive.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200929190448.31116-1-frank.chang@sifive.com> References: <20200929190448.31116-1-frank.chang@sifive.com> Received-SPF: pass client-ip=2607:f8b0:4864:20::444; envelope-from=frank.chang@sifive.com; helo=mail-pf1-x444.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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 , Alistair Francis , Palmer Dabbelt , Sagar Karandikar , Bastian Koppelmann Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Frank Chang * Remove clear function from helper functions as the tail elements are unchanged in RVV 1.0. Signed-off-by: Frank Chang Reviewed-by: Richard Henderson --- target/riscv/vector_helper.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/target/riscv/vector_helper.c b/target/riscv/vector_helper.c index a2ef6b708c..fac387353f 100644 --- a/target/riscv/vector_helper.c +++ b/target/riscv/vector_helper.c @@ -4639,17 +4639,22 @@ GEN_VEXT_VSLIDEUP_VX(vslideup_vx_d, uint64_t, H8) void HELPER(NAME)(void *vd, void *v0, target_ulong s1, void *vs2, \ CPURISCVState *env, uint32_t desc) \ { \ - uint32_t vlmax = env_archcpu(env)->cfg.vlen; \ + uint32_t vlmax = vext_max_elems(desc, ctzl(sizeof(ETYPE))); \ uint32_t vm = vext_vm(desc); \ uint32_t vl = env->vl; \ - target_ulong offset = s1, i; \ + target_ulong i_max, i; \ \ - for (i = 0; i < vl; ++i) { \ - target_ulong j = i + offset; \ - if (!vm && !vext_elem_mask(v0, i)) { \ - continue; \ + i_max = MIN(s1 < vlmax ? vlmax - s1 : 0, vl); \ + for (i = 0; i < i_max; ++i) { \ + if (vm || vext_elem_mask(v0, i)) { \ + *((ETYPE *)vd + H(i)) = *((ETYPE *)vs2 + H(i + s1)); \ + } \ + } \ + \ + for (i = i_max; i < vl; ++i) { \ + if (vm || vext_elem_mask(v0, i)) { \ + *((ETYPE *)vd + H(i)) = 0; \ } \ - *((ETYPE *)vd + H(i)) = j >= vlmax ? 0 : *((ETYPE *)vs2 + H(j)); \ } \ }