[PATCH] D132077: [llvm-reduce] Add pass that reduces DebugInfo metadata

[Arthur Eubanks via Phabricator via llvm-commits]

aeubanks added a comment.

even with the latest patch I'm seeing verifier errors

  !6249 = distinct !DICompositeType(tag: DW_TAG_structure_type, name: "BindUnwrapTraits<base::internal::UnretainedWrapper<v8::JobTask> >", scope: !22, file: !1379, line: 1456, size: 8, flags: DIFlagTypePassByValue, elements: !7, templateParams: !2223, identifier: ".?AU?$BindUnwrapTraits at V?$UnretainedWrapper at VJobTask@v8@@@internal at base@@@base@@")
  !2223 = distinct !{null}
  invalid template parameter

is it possible to not replace the metadata with null but rather create a new metadata node with just the remaining operands?

here's what I've been testing with
F24761420: b.ll <https://reviews.llvm.org/F24761420>

  $ cat /tmp/reduce.sh 
  #!/bin/bash
  set -eu
  [[ $(rg --count DILocation $@ ) -gt 2000 ]]
  $ ./build/rel/bin/llvm-reduce --test /tmp/reduce.sh /tmp/b.ll -o /tmp/c.ll --delta-passes=di-metadata


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D132077/new/

https://reviews.llvm.org/D132077