[PATCH] D50495: [DebugInfo] Do not generate duplicated label debug info if it has been processed.

Thu Aug 9 01:39:07 PDT 2018

HsiangKai created this revision.
HsiangKai added reviewers: aprantl, probinson, dblaikie.
Herald added a subscriber: JDevlieghere.

In DwarfDebug::collectEntityInfo(), if the label entity is processed in DbgLabels list, it means the label is not optimized out. There is no need to generate debug info for it with null position.

The bug is reported by vext01 in https://reviews.llvm.org/D45045#1190748

Repository:
  rL LLVM

https://reviews.llvm.org/D50495

Files:
  lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
  lib/CodeGen/AsmPrinter/CodeViewDebug.h
  lib/CodeGen/AsmPrinter/DbgEntityHistoryCalculator.cpp
  lib/CodeGen/AsmPrinter/DbgEntityHistoryCalculator.h
  lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
  lib/CodeGen/AsmPrinter/DwarfDebug.cpp
  lib/CodeGen/AsmPrinter/DwarfDebug.h
  test/DebugInfo/Generic/debug-label.ll

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