[PATCH] D55372: [DebugInfo] Emit "undef" DBG_VALUEs when SDNodes are optimised out

[Jeremy Morse via Phabricator via llvm-commits]

jmorse updated this revision to Diff 177172.
jmorse added a comment.

In a test, alter the fragment that two dbg.values refer to. I believe they were incorrect in the first place but silently ignored.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D55372/new/

https://reviews.llvm.org/D55372

Files:
  lib/CodeGen/SelectionDAG/InstrEmitter.cpp
  lib/CodeGen/SelectionDAG/SDNodeDbgValue.h
  lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
  lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  test/CodeGen/X86/pr39896.ll
  test/DebugInfo/NVPTX/debug-info.ll
  test/DebugInfo/X86/dbg-value-inlined-parameter.ll
  test/DebugInfo/X86/pieces-3.ll

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