[all-commits] [llvm/llvm-project] e05690: [llvm] Make Sequence reverse-iterable

[Guillaume Chatelet via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: e0569033e21ded970783cab557ba034b134b9c69
      https://github.com/llvm/llvm-project/commit/e0569033e21ded970783cab557ba034b134b9c69
  Author: Guillaume Chatelet <gchatelet at google.com>
  Date:   2021-06-10 (Thu, 10 Jun 2021)

  Changed paths:
    M llvm/include/llvm/ADT/Sequence.h
    M llvm/unittests/ADT/SequenceTest.cpp
    M mlir/include/mlir/IR/BuiltinAttributes.td
    M mlir/lib/Conversion/PDLToPDLInterp/PDLToPDLInterp.cpp
    M mlir/lib/Dialect/Linalg/Transforms/Vectorization.cpp

  Log Message:
  -----------
  [llvm] Make Sequence reverse-iterable

This is a roll forward of D102679.
This patch simplifies the implementation of Sequence and makes it compatible with llvm::reverse.
It exposes the reverse iterators through rbegin/rend which prevents a dangling reference in std::reverse_iterator::operator++().

Note: Compared to D102679, this patch introduces a `asSmallVector()` member function and fixes compilation issue with GCC 5.

Differential Revision: https://reviews.llvm.org/D103948