[PATCH] D39933: Summary: Fix out-of-order stepping behavior in programs with sunk instructions

[Matthew Voss via Phabricator via llvm-commits]

ormris updated this revision to Diff 125012.
ormris added a comment.
Herald added a subscriber: JDevlieghere.

Change list:

- Ensure that we don't crash when the insert position is not found.
- Add comment explaining the debug value move.
- Add test that tests the merging of debug values.
- Update the previous test to use MIR.


https://reviews.llvm.org/D39933

Files:
  lib/CodeGen/MachineSink.cpp
  test/CodeGen/X86/machinesink-merge-debuginfo.ll
  test/CodeGen/X86/machinesink-null-debuginfo.ll

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