[all-commits] [llvm/llvm-project] f52666: Revert "[LoopDeletion] Handle Phis with similar in...

[Nathan Chancellor via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: f52666985d7011b539f26f54e09a5c89b62dad56
      https://github.com/llvm/llvm-project/commit/f52666985d7011b539f26f54e09a5c89b62dad56
  Author: Nathan Chancellor <nathan at kernel.org>
  Date:   2021-06-21 (Mon, 21 Jun 2021)

  Changed paths:
    M llvm/lib/Transforms/Scalar/LoopDeletion.cpp
    M llvm/test/Transforms/LoopDeletion/eval_first_iteration.ll

  Log Message:
  -----------
  Revert "[LoopDeletion] Handle Phis with similar inputs from different blocks"

This reverts commit bb1dc876ebb8a2eef38d5183d00c2db1437f1c91.

This patch causes an assertion failure when building an arm64 defconfig
Linux kernel.

See https://reviews.llvm.org/D103959 for a link to the original bug
report and a reduced reproducer.