[all-commits] [llvm/llvm-project] ad37a4: [APInt] Fix isAllOnes and extractBits for zero wid...

[Chris Lattner via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ad37a45a2e137fe05591f3fe7d23b5b921e7ff1d
      https://github.com/llvm/llvm-project/commit/ad37a45a2e137fe05591f3fe7d23b5b921e7ff1d
  Author: Chris Lattner <clattner at nondot.org>
  Date:   2021-10-06 (Wed, 06 Oct 2021)

  Changed paths:
    M llvm/include/llvm/ADT/APInt.h
    M llvm/lib/Support/APInt.cpp
    M llvm/unittests/ADT/APIntTest.cpp

  Log Message:
  -----------
  [APInt] Fix isAllOnes and extractBits for zero width values.

isAllOnes() should return true for zero bit values because
there are no zeros in it.

Thanks to Jay Foad for pointing this out.

Differential Revision: https://reviews.llvm.org/D111241