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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 577be0fed3 [CodeView] Don't emit debuginfo for imported symbols 
Emitting symbol information requires us to have a definition for the
symbol.  A symbol reference is insufficient.

This fixes PR28123.

llvm-svn: 272738
 2016-06-15 00:19:52 +00:00