AIRDependency: fixup issues around op erase in `hoistTargetOpsToNewSCFFor` method

Xilinx / mlir-air

MIT License

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Closed erwei-xilinx closed 2 weeks ago

erwei-xilinx commented 2 weeks ago

Rewrite block walking to respect IsolateFromAbove trait.
Use PatternRewriter to delete ops (instead of Operation's erase method), for matchPattern to work properly.