[all-commits] [llvm/llvm-project] 9eb2c0: [IR][LoopRotate] remove assertion that phi must ha...

[RotateRight via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 9eb2c0113dfe2c1054e524122ca0e17ad552bb01
      https://github.com/llvm/llvm-project/commit/9eb2c0113dfe2c1054e524122ca0e17ad552bb01
  Author: Sanjay Patel <spatel at rotateright.com>
  Date:   2020-11-30 (Mon, 30 Nov 2020)

  Changed paths:
    M llvm/lib/IR/Verifier.cpp
    A llvm/test/Transforms/LoopRotate/phi-empty.ll

  Log Message:
  -----------
  [IR][LoopRotate] remove assertion that phi must have at least one operand

This was suggested in D92247 - I initially committed an alternate
fix ( bfd2c216ea ) to avoid the crash/assert shown in
https://llvm.org/PR48296 ,
but that was reverted because it caused msan failures on other
tests. We can try to revive that patch using the test included
here, but I do not have an immediate plan to isolate that problem.