[mlir] Clarify/Fix parts of MLIR toy tutorial chapter 2
authorMatthias Kramm <kramm@google.com>
Fri, 28 Feb 2020 01:49:31 +0000 (17:49 -0800)
committerRiver Riddle <riddleriver@gmail.com>
Fri, 28 Feb 2020 01:50:07 +0000 (17:50 -0800)
commit9f6617dcd9a393ede084454aaa190994e2369c4c
treeb10b408bd0197d86eedfd8f5244e09e223238558
parentb2999264536776aa3c09577290ebf21643bdc492
[mlir] Clarify/Fix parts of MLIR toy tutorial chapter 2

Summary:
* clarify what "registering" means.
* clarify Op dereferencing
* clarify override/virtual phrasing
* omit duplication in code samples
* fix OpAsmPrinter comment

Differential Revision: https://reviews.llvm.org/D75256
mlir/docs/Tutorials/Toy/Ch-2.md