tree f04aa471433c1d632efade45f40767a7e0703b37
parent d16f3cc269cecddef1fcabf2eb649adb9ea308d2
author Arthur Eubanks <aeubanks@google.com> 1600792486 -0700
committer Copybara-Service <copybara-worker@google.com> 1604025698 -0700

[NewPM] Add callbacks to PassBuilder to run before/after parsing a pass

This is in preparation for supporting -debugify-each, which adds a debug
info pass before and after each pass.

Switch VerifyEach to use this.

Reviewed By: ychen

Differential Revision: https://reviews.llvm.org/D88107

GitOrigin-RevId: 111aa4e36614d9a056cf5040d4d7bbfddeb9ebb2