tvm
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pattern.h
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1/*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing,
13 * software distributed under the License is distributed on an
14 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15 * KIND, either express or implied. See the License for the
16 * specific language governing permissions and limitations
17 * under the License.
18 */
19
24#ifndef TVM_SYM_PATTERN_H_
25#define TVM_SYM_PATTERN_H_
26
27#include <tvm/ir/expr.h>
28
29namespace tvm {
30namespace sym {
39ffi::Array<PrimExpr> DetectLinearEquation(const PrimExpr& e, const ffi::Array<PrimVar>& vars);
40
49ffi::Array<ffi::Optional<PrimExpr>> DetectClipBound(const PrimExpr& e,
50 const ffi::Array<PrimVar>& vars);
51
52} // namespace sym
53} // namespace tvm
54#endif // TVM_SYM_PATTERN_H_
Typed reference/view over any Expr whose ExprNode::ty is PrimType.
Definition base_expr.h:447
Base expr nodes in TVM.
ffi::Array< PrimExpr > DetectLinearEquation(const PrimExpr &e, const ffi::Array< PrimVar > &vars)
Detect if e can be rewritten as e = sum_{i=0}^{n-1} var[i] * coeff[i] + coeff[n] Where coeff[i] and b...
ffi::Array< ffi::Optional< PrimExpr > > DetectClipBound(const PrimExpr &e, const ffi::Array< PrimVar > &vars)
Detect if expression corresponds to clip bound of the vars.
An object that builds and maintains block scope and StmtSref mapping for Dependence analysis.
Definition attr.h:23