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Author SHA1 Message Date
Peter Collingbourne d4135bbc30 DebugInfo: New metadata representation for global variables. 
This patch reverses the edge from DIGlobalVariable to GlobalVariable.
This will allow us to more easily preserve debug info metadata when
manipulating global variables.

Fixes PR30362. A program for upgrading test cases is attached to that
bug.

Differential Revision: http://reviews.llvm.org/D20147

llvm-svn: 281284
 2016-09-13 01:12:59 +00:00
David Majnemer 28c3646f82 [COFF, Dwarf] Don't emit DW_AT_location for dllimported entities 
There exists no relocation which can describe the address of a
dllimported variable: do not try to describe their location.

llvm-svn: 274986
 2016-07-09 20:47:48 +00:00