[PATCH] D31629: [codeview] Cope with unsorted streams in type merging

[Reid Kleckner via Phabricator via llvm-commits]

rnk created this revision.

MASM can produce type streams that are not topologically sorted. It can
even produce type streams with circular references, but those are not
common in practice.


https://reviews.llvm.org/D31629

Files:
  llvm/include/llvm/DebugInfo/CodeView/TypeTableBuilder.h
  llvm/lib/DebugInfo/CodeView/TypeStreamMerger.cpp
  llvm/test/tools/llvm-readobj/Inputs/codeview-cycle.obj
  llvm/test/tools/llvm-readobj/Inputs/codeview-unsorted.obj
  llvm/test/tools/llvm-readobj/codeview-merging-cycle.test
  llvm/test/tools/llvm-readobj/codeview-merging-unsorted.test
  llvm/tools/llvm-readobj/COFFDumper.cpp

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