[MLIR] Add Linalg support for integer (generalized) matmuls

Authored by GMNGeoffrey on Feb 18 2021, 3:37 PM.


[MLIR] Add Linalg support for integer (generalized) matmuls

This patch adds Linalg named ops for various types of integer matmuls.
Due to limitations in the tc spec/linalg-ods-gen ops cannot be type
polymorphic, so this instead creates new ops (improvements to the
methods for defining Linalg named ops are underway with a prototype at

To avoid the necessity of directly referencing these many new ops, this
adds additional methods to ContractionOpInterface to allow classifying
types of operations based on their indexing maps.

Reviewed By: nicolasvasilache, mravishankar

Differential Revision: https://reviews.llvm.org/D97006