[all-commits] [llvm/llvm-project] 43a46f: [bugpoint] Try to reduce passes after reducing eve...

[Florian Hahn via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 43a46f1c09380f65bf18d39c16c5145bfe48af45
      https://github.com/llvm/llvm-project/commit/43a46f1c09380f65bf18d39c16c5145bfe48af45
  Author: Florian Hahn <flo at fhahn.com>
  Date:   2019-10-29 (Tue, 29 Oct 2019)

  Changed paths:
    M llvm/tools/bugpoint/CrashDebugger.cpp

  Log Message:
  -----------
  [bugpoint] Try to reduce passes after reducing everything.

In some cases, we fail to reduce the pass list earlier because of
complex pass dependencies, but we can reduce it after we simplified the
reproducer.

An example of that is PR43474, which can limit the crash to
-loop-interchange. Adding a test case would require at least 2
interacting Loop passes I think.

Reviewers: davide, reames, modocache

Reviewed By: reames

Differential Revision: https://reviews.llvm.org/D69236