Tianqi Chen
141c22fd8a
This PR brings up the tirx namespace. We have been spliting out the original tir namespace to include high-level component s_tir and this PR updates the remaining low-level part as tirx namespace
62 lines
1.8 KiB
Python
62 lines
1.8 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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"""Detect common patterns."""
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from . import _ffi_api
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def detect_linear_equation(expr, var_list):
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"""Match `expr = sum_{i=0}^{n-1} var[i] * coeff[i] + coeff[n]`
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Where coeff[i] and base are invariant of var[j] for all i and j.
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Parameters
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----------
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expr : PrimExpr
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The expression to be matched.
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var_list : List[tvm.tirx.Var]
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A list of variables.
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Returns
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-------
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coeff : List[PrimExpr]
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A list of co-efficients if the match is successful.
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An empty list if the match failed.
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"""
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return _ffi_api.DetectLinearEquation(expr, var_list)
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def detect_clip_bound(expr, var_list):
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"""Detect if expression corresponds to clip bound of the vars
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Parameters
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----------
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expr : PrimExpr
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The expression to be matched.
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var_list : List[tvm.tirx.Var]
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A list of variables.
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Returns
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-------
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coeff : List[PrimExpr]
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`concat([min_value[i], max_value[i]] for i, v in enumerate(var_list))`
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An empty list if the match failed.
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"""
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return _ffi_api.DetectClipBound(expr, var_list)
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