Valentin Clement (バレンタイン クレメン) e9639e9c06 [flang][NFC] Extract FIROpConversion to its own files (#86213) ...

This PR extracts `FIROpConversion` and `FIROpAndTypeConversion`
templated base patterns to a header file. All the functions from
FIROpConversion that do not require the template argument are moved to a
base class named `ConvertFIRToLLVMPattern`.
This move is done so the `FIROpConversion` pattern and all its utility
functions can be reused outside of the codegen pass.

For the most part the code is only moved to the new files and not
modified. The only update is that addition of the PatternBenefit
argument with a default value to the constructor so it can be forwarded
to the `ConversionPattern` ctor.

This split is done in a similar way for the `ConvertOpToLLVMPattern`
base pattern that is based on the `ConvertToLLVMPattern` base class in
`mlir/include/mlir/Conversion/LLVMCommon/Pattern.h`.

2024-03-22 12:56:45 -07:00

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