[all-commits] [llvm/llvm-project] 4463b7: Enable opt-bisect for the new pass manager

[Josh Stone via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 4463b73e790fdf8bdbb18ac4ae3432217215daa5
      https://github.com/llvm/llvm-project/commit/4463b73e790fdf8bdbb18ac4ae3432217215daa5
  Author: Josh Stone <jistone at redhat.com>
  Date:   2020-11-09 (Mon, 09 Nov 2020)

  Changed paths:
    M llvm/include/llvm/IR/OptBisect.h
    M llvm/include/llvm/Passes/StandardInstrumentations.h
    M llvm/lib/Passes/StandardInstrumentations.cpp
    A llvm/test/Other/opt-bisect-new-pass-manager.ll

  Log Message:
  -----------
  Enable opt-bisect for the new pass manager

This instruments a should-run-optional-pass callback using the existing
OptBisect class to decide if new passes should be skipped. Passes that
force isRequired never reach this at all, so they are not included in
"BISECT:" output nor its pass count.

The test case is resurrected from r267022, an early version of D19172
that had new pass manager support (later reverted and redone without).

Reviewed By: aeubanks

Differential Revision: https://reviews.llvm.org/D87951