0bda492ba1
During bufferization, the callee of each `func::CallOp` / `CallableOpInterface` operation is retrieved by means of a symbol table that is temporarily built for the lookup purpose. The creation of the symbol table requires a linear scan of the operation body (e.g., a linear scan of the `ModuleOp` body). Considering that functions are typically called at least once, this leads to a scaling behavior that is quadratic with respect to the number of symbols. The problem is described in the following Discourse topic: https://discourse.llvm.org/t/quadratic-scaling-of-bufferization/86122/ This patch aims to partially address this scaling issue by leveraging the `SymbolTableCollection` class, whose instance is added to the `FuncAnalysisState` extension. Later modifications are also expected to address the problem in other methods required by `BufferizableOpInterface` (e.g., `bufferize` and `getBufferType`), which suffer of the same problem but do not provide access to any bufferization state.
24 KiB
24 KiB