[all-commits] [llvm/llvm-project] e61554: [mlir][EmitC] Add pass to wrap a func in class (#1...

[Jaden Angella via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e615544e2bd11ceaf10841f8c07e6137d87e9814
      https://github.com/llvm/llvm-project/commit/e615544e2bd11ceaf10841f8c07e6137d87e9814
  Author: Jaden Angella <ajaden at google.com>
  Date:   2025-06-24 (Tue, 24 Jun 2025)

  Changed paths:
    M mlir/include/mlir/Dialect/EmitC/IR/EmitC.td
    M mlir/include/mlir/Dialect/EmitC/Transforms/Passes.h
    M mlir/include/mlir/Dialect/EmitC/Transforms/Passes.td
    M mlir/include/mlir/Dialect/EmitC/Transforms/Transforms.h
    M mlir/lib/Dialect/EmitC/IR/EmitC.cpp
    M mlir/lib/Dialect/EmitC/Transforms/CMakeLists.txt
    A mlir/lib/Dialect/EmitC/Transforms/WrapFuncInClass.cpp
    A mlir/test/Dialect/EmitC/wrap_emitc_func_in_class.mlir
    A mlir/test/Dialect/EmitC/wrap_emitc_func_in_class_noAttr.mlir

  Log Message:
  -----------
  [mlir][EmitC] Add pass to wrap a func in class (#141158)

Goal: Enable using C++ classes to AOT compile models for MLGO.

This commit introduces a transformation pass that converts standalone
`emitc.func` operations into `emitc.class `structures to support
class-based C++ code generation for MLGO.

Transformation details:
- Wrap `emitc.func @func_name` into `emitc.class @Myfunc_nameClass`
- Converts function arguments to class fields with preserved attributes
- Transforms function body into an `execute()` method with no arguments
- Replaces argument references with `get_field` operations

Before: emitc.func @Model(%arg0, %arg1, %arg2) with direct argument
access
After: emitc.class with fields and execute() method using get_field
operations

This enables generating C++ classes that can be instantiated and
executed as self-contained model objects for AOT compilation workflows.



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