chore: import upstream snapshot with attribution

paddle/pir/include/dialect/shape/utils/dim_expr_builder.h

@@ -0,0 +1,41 @@
+// Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
+//
+// Licensed 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.
+
+#pragma once
+
+#include "paddle/pir/include/core/dll_decl.h"
+#include "paddle/pir/include/dialect/shape/utils/dim_expr.h"
+
+namespace symbol {
+
+class IR_API DimExprBuilder {
+ public:
+  DimExpr ConstSize(std::int64_t dim);
+  DimExpr Symbol(const std::string& symbol_name);
+  DimExpr Add(const DimExpr& lhs, const DimExpr& rhs);
+  DimExpr Any(const DimExpr& lhs, const DimExpr& rhs);
+  DimExpr Mul(const DimExpr& lhs, const DimExpr& rhs);
+  DimExpr Div(const DimExpr& lhs, const DimExpr& rhs);
+  DimExpr Max(const DimExpr& lhs, const DimExpr& rhs);
+  DimExpr Min(const DimExpr& lhs, const DimExpr& rhs);
+  DimExpr Broadcast(const DimExpr& lhs, const DimExpr& rhs);
+  std::vector<DimExpr> ConstShape(const std::vector<std::int64_t>& dims);
+
+  std::vector<DimExpr> Concat(const std::vector<DimExpr>& lhs,
+                              const std::vector<DimExpr>& rhs);
+  std::pair<std::vector<DimExpr>, std::vector<DimExpr>> SplitAt(
+      const std::vector<DimExpr>, int index);
+};
+
+}  // namespace symbol