wehub-resource-sync
86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
/*
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* 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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*/
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/*!
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* \file tvm/arith/bound.h
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* \brief Bound deducers.
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*/
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#ifndef TVM_ARITH_BOUND_H_
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#define TVM_ARITH_BOUND_H_
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#include <tvm/arith/int_set.h>
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#include <tvm/ir/expr.h>
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#include <tvm/tirx/expr.h>
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#include <tvm/tirx/stmt.h>
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#include <unordered_map>
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namespace tvm {
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namespace arith {
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using tirx::Region;
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using tirx::Stmt;
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using tirx::Var;
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using tirx::VarNode;
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/*!
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* \brief Deduce the bound of the target variable in a expression,
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* give the domain of each variables. Return undefined IntSet to
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* represent failure.
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*
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* \note The returned set may be smaller than set that
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* contains all possible values of v that satisfies the bound.
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*
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* \param v The target variable to be deduced.
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* \param cond The conditional expression.
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* \param hint_map The domain of variable, used to help deduce.
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* \param relax_map The domain of each variable, used to relax the domain,
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* The deduce bound must implies e for all value in relax_map
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* \return An integer set that always satisfies the condition.
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*/
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IntSet DeduceBound(PrimExpr v, PrimExpr cond, const ffi::Map<Var, IntSet>& hint_map,
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const ffi::Map<Var, IntSet>& relax_map);
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/*!
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* \brief Same as DeduceBound with unordered_map signature.
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*
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* \param v The target variable to be deduced.
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* \param cond The conditional expression.
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* \param hint_map The domain of variable, used to help deduce.
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* \param relax_map The domain of each variable, used to relax the domain,
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* The deduce bound mush implies e for all value in relax_map
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* \return An integer set that always satisfies the condition.
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*/
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IntSet DeduceBound(PrimExpr v, PrimExpr cond,
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const std::unordered_map<const VarNode*, IntSet>& hint_map,
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const std::unordered_map<const VarNode*, IntSet>& relax_map);
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/*!
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* \brief Infer a regular domain that covers all the calls or provides within the given statement.
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* \param body The given statement.
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* \param buffer The buffer to check the access info.
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* \param consider_loads If loads are considered.
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* \param consider_stores If stores are considered.
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* \return The domain that covers all the calls or provides within the given statement.
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*/
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Region DomainTouched(const Stmt& body, const tirx::Buffer& buffer, bool consider_loads,
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bool consider_stores);
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} // namespace arith
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} // namespace tvm
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#endif // TVM_ARITH_BOUND_H_
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