[PATCH] D18236: DebugInfo: Add ability to not emit DW_AT_vtable_elem_location for virtual functions.

[Peter Collingbourne via llvm-commits]

pcc created this revision.
pcc added reviewers: dblaikie, echristo, dexonsmith.
pcc added a subscriber: llvm-commits.

A virtual index of -1u indicates that the subprogram's virtual index is
unrepresentable (for example, when using the relative vtable ABI), so do
not emit a DW_AT_vtable_elem_location attribute for it.

http://reviews.llvm.org/D18236

Files:
  include/llvm/IR/DIBuilder.h
  lib/AsmParser/LLParser.cpp
  lib/CodeGen/AsmPrinter/DwarfUnit.cpp
  lib/IR/AsmWriter.cpp
  lib/IR/DIBuilder.cpp
  test/Assembler/disubprogram.ll
  test/DebugInfo/Generic/virtual-index.ll

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