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Author SHA1 Message Date
Manman Ren 409558f81e Debug Info: update testing cases to specify the debug info version number. 
We are going to drop debug info without a version number or with a different
version number, to make sure we don't crash when we see bitcode files with
different debug info metadata format.

llvm-svn: 195504
 2013-11-22 21:49:45 +00:00
Manman Ren 0ed70aeb85 Debug Info: add an identifier field to DICompositeType. 
DICompositeType will have an identifier field at position 14. For now, the
field is set to null in DIBuilder.
For DICompositeTypes where the template argument field (the 13th field)
was optional, modify DIBuilder to make sure the template argument field is set.
Now DICompositeType has 15 fields.

Update DIBuilder to use NULL instead of "i32 0" for null value of a MDNode.
Update verifier to check that DICompositeType has 15 fields and the last
field is null or a MDString.

Update testing cases to include an extra field for DICompositeType.
The identifier field will be used by type uniquing so a front end can
genearte a DICompositeType with a unique identifer.

llvm-svn: 189282
 2013-08-26 22:39:55 +00:00
Manman Ren e9a52e18da Debug Info: update testing cases to pass verifier. 
llvm-svn: 187362
 2013-07-29 18:12:58 +00:00
Devang Patel 7771b7c621 If a instruction belongs to another function (and not current function) as per debug info attached with the instruction then ignore the dangling lexical scope of this instruction. Such scopes are unreachable. 
llvm-svn: 93967
 2010-01-20 02:05:23 +00:00