[all-commits] [llvm/llvm-project] f0a411: [mlir][Transform]Significantly cleanup scf.foreach...

[Nicolas Vasilache via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f0a411da771813bc034d7240f3f7d5e0ae1cb67a
      https://github.com/llvm/llvm-project/commit/f0a411da771813bc034d7240f3f7d5e0ae1cb67a
  Author: Nicolas Vasilache <nicolas.vasilache at gmail.com>
  Date:   2022-11-14 (Mon, 14 Nov 2022)

  Changed paths:
    M mlir/include/mlir/Dialect/SCF/IR/SCFOps.td
    M mlir/lib/Dialect/GPU/TransformOps/GPUTransformOps.cpp
    M mlir/lib/Dialect/SCF/IR/SCF.cpp
    M mlir/test/Dialect/GPU/transform-gpu-failing.mlir
    M mlir/test/Dialect/GPU/transform-gpu.mlir
    M mlir/test/Dialect/SCF/invalid.mlir

  Log Message:
  -----------
  [mlir][Transform]Significantly cleanup scf.foreach_thread and GPU transform permutation handling

Previously, the need for a dense permutation leaked into the thread_dim_mapping specification.
This revision allows to use a sparse specification of the thread_dim_mapping and the proper completion / sorting is applied automatically.

In the process, the sematics of scf.foreach_thread is tightened to require a matching number of thread dimensions and mappings.
The relevant negative test is added.

Differential Revision: https://reviews.llvm.org/D137906