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Author SHA1 Message Date
Greg Clayton c8c1032c0c Make a DWARFDIE class that can help avoid using the wrong DWARFUnit when extracting attributes 
Many places pass around a DWARFDebugInfoEntryMinimal and a DWARFUnit. It is easy to get things wrong by using the wrong DWARFUnit with a DWARFDebugInfoEntryMinimal. This patch creates a DWARFDie class that contains the DWARFUnit and DWARFDebugInfoEntryMinimal objects so that they can't get out of sync. All attribute extraction has been moved out of DWARFDebugInfoEntryMinimal and into DWARFDie. DWARFDebugInfoEntryMinimal was also renamed to DWARFDebugInfoEntry.

DWARFDie objects are temporary objects that are used by clients and contain 2 pointers that you always need to have anyway. Keeping them grouped will avoid errors and simplify many of the attribute extracting APIs by not having to pass in a DWARFUnit.

Differential Revision: https://reviews.llvm.org/D27634

llvm-svn: 289565
 2016-12-13 18:25:19 +00:00
Benjamin Kramer eedc4059c3 Plug another leak in the DWARF unittests, DIEInlineStrings are never destroyed. 
llvm-svn: 289208
 2016-12-09 13:33:41 +00:00
Benjamin Kramer 9fcb7fe51e Fix memory leak in unit test. 
The StringPool entries are destroyed with the allocator, the string pool
itself is not.

llvm-svn: 289207
 2016-12-09 13:12:30 +00:00
Greg Clayton b90328356a Fix ASAN buildbots by fixing a double free crash. 
The dwarfgen::Generator::StringPool was in a unique_ptr but it was owned by the Allocator member variable so it was being free twice.

llvm-svn: 289070
 2016-12-08 16:57:04 +00:00
Daniel Jasper 0f77869d58 Move DwarfGenerator.cpp to unittests 
So far it creates a test helper and so it should be moved there. It also
create a layering cycle between CodeGen and CodeGen/AsmPrinter, which
should be avoided.

Review: https://reviews.llvm.org/D27570
llvm-svn: 289044
 2016-12-08 12:45:29 +00:00