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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=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+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" When the two arguments are identical, this can be reduced to dup_vec or to mov_vec from a tcg_constant_vec. Signed-off-by: Richard Henderson --- tcg/optimize.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/tcg/optimize.c b/tcg/optimize.c index 53aa8e5329..220f4601d5 100644 --- a/tcg/optimize.c +++ b/tcg/optimize.c @@ -1109,6 +1109,21 @@ void tcg_optimize(TCGContext *s) } goto do_default; =20 + case INDEX_op_dup2_vec: + assert(TCG_TARGET_REG_BITS =3D=3D 32); + if (arg_is_const(op->args[1]) && arg_is_const(op->args[2])) { + tmp =3D arg_info(op->args[1])->val; + if (tmp =3D=3D arg_info(op->args[2])->val) { + tcg_opt_gen_movi(s, op, op->args[0], tmp); + break; + } + } else if (args_are_copies(op->args[1], op->args[2])) { + op->opc =3D INDEX_op_dup_vec; + TCGOP_VECE(op) =3D MO_32; + nb_iargs =3D 1; + } + goto do_default; + CASE_OP_32_64(not): CASE_OP_32_64(neg): CASE_OP_32_64(ext8s): --=20 2.25.1