[PATCH] This phabricator revision is the merge of 4 patches that aim to provide resolving of AT_abstract_origin and AT_specification attributes.

[Alexey Samsonov]

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Comment at: lib/DebugInfo/DWARFDebugInfoEntry.cpp:319
@@ +318,3 @@
+      Offset >= U->getNextUnitOffset()) {
+    U = U->getContext().getCompileUnitForOffset(Offset);
+    assert(U && "Invalid DIE referenced.");
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dblaikie wrote:
> Is "getCompileUnitForOffset" cheap enough that we should just always call it? (& maybe pass in the context to this function, rather than the DWARFUnit, at that point)
This part makes no sense to me. We definitely should somehow ensure that "this" is in a fact a DIE in "U". When you call DWARFDebugInfoEntry::getSubroutineName(), you certainly should know which unit this DIE belongs to. How can it be not so?

http://reviews.llvm.org/D5208