[PATCH] D16249: [DwarfDebug] Don't merge DebugLocEntries if their pieces overlap

[Keno Fischer via llvm-commits]

loladiro created this revision.
loladiro added a reviewer: aprantl.
loladiro added a subscriber: llvm-commits.

Later in DWARF emission we check that DebugLocEntries have
non-overlapping pieces, so we should create any such entries
by merging here.

Fixes PR26163.

http://reviews.llvm.org/D16249

Files:
  lib/CodeGen/AsmPrinter/DebugLocEntry.h
  lib/CodeGen/AsmPrinter/DwarfDebug.cpp
  test/DebugInfo/ARM/PR26163.ll

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