[all-commits] [llvm/llvm-project] 7dff6b: [MLIR] Add idempotent trait folding

[ahmedsabie via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 7dff6b818b1cdd52fbc99f6256760d6eb02a7622
      https://github.com/llvm/llvm-project/commit/7dff6b818b1cdd52fbc99f6256760d6eb02a7622
  Author: ahmedsabie <ahmed13579 at gmail.com>
  Date:   2020-10-16 (Fri, 16 Oct 2020)

  Changed paths:
    M mlir/include/mlir/IR/OpBase.td
    M mlir/include/mlir/IR/OpDefinition.h
    M mlir/lib/IR/Operation.cpp
    M mlir/test/lib/Dialect/Test/TestOps.td
    M mlir/test/mlir-tblgen/trait.mlir

  Log Message:
  -----------
  [MLIR] Add idempotent trait folding

This trait simply adds a fold of f(f(x)) = f(x) when an operation is labelled as idempotent

Reviewed By: rriddle, andyly

Differential Revision: https://reviews.llvm.org/D89421