[all-commits] [llvm/llvm-project] f6c726: Revert "[ValueTracking] Improve the coverage of is...

[goldsteinn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f6c726472df1ebc8489e178a2d299cb3950efbfe
      https://github.com/llvm/llvm-project/commit/f6c726472df1ebc8489e178a2d299cb3950efbfe
  Author: Noah Goldstein <goldstein.w.n at gmail.com>
  Date:   2023-08-07 (Mon, 07 Aug 2023)

  Changed paths:
    M llvm/lib/Analysis/ValueTracking.cpp

  Log Message:
  -----------
  Revert "[ValueTracking] Improve the coverage of isKnownToBeAPowerOfTwo for vscale"

Logic is incorrect. Shift can make non-zero pow2 zero.

This reverts commit 9c837b7d0e2e2dffae804f3df49c4aeefe4743c0.