tqchen commented on code in PR #17663: URL: https://github.com/apache/tvm/pull/17663#discussion_r1961869822
########## python/tvm/dlight/cpu/gemv.py: ########## @@ -0,0 +1,259 @@ +# Licensed to the Apache Software Foundation (ASF) under one +# or more contributor license agreements. See the NOTICE file +# distributed with this work for additional information +# regarding copyright ownership. The ASF licenses this file +# to you under the Apache License, Version 2.0 (the +# "License"); you may not use this file except in compliance +# with the License. You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, +# software distributed under the License is distributed on an +# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY +# KIND, either express or implied. See the License for the +# specific language governing permissions and limitations +# under the License. +"""A rule for GEMV and DecodeGEMV.""" +from typing import List, Optional, Union + +from tvm import arith, ir, tir +from tvm.target import Target + +from ..base import ( + BlockInfo, + collect_block_iter_vars_used_in_access_region, + collect_vars_used_in_prim_expr, + detect_dominant_read, + normalize_prim_func, + try_inline_contiguous_spatial, +) +from .base import CPUScheduleRule +from .utils import get_extent + + +def _get_reduction_expr(block: tir.Block) -> Optional[tir.PrimExpr]: + # Detect and return `Y` in `X[...] = X[...] + Y` + buffer_store = block.body + if not isinstance(buffer_store, tir.BufferStore): + return None + if not isinstance(buffer_store.value, tir.Add): + return None + if not ir.structural_equal( + buffer_store.value.a, + tir.BufferLoad(buffer_store.buffer, block.body.indices), + map_free_vars=True, + ): + return None + return buffer_store.value.b + + +def is_gemv(sch: tir.Schedule, block_info: BlockInfo) -> Optional[List[tir.Buffer]]: Review Comment: i agree this is a good suggestion, dlight.analysis sounds right -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
