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4 Commits

Author SHA1 Message Date
Paul Robinson ac7fe5e0c4 Recommit r288212: Emit 'no line' information for interesting 'orphan' instructions. 
DWARF specifies that "line 0" really means "no appropriate source
location" in the line table.  By default, use this for branch targets
and some other cases that have no specified source location, to
prevent inheriting unfortunate line numbers from physically preceding
instructions (which might be from completely unrelated source).

Updated patch allows enabling or suppressing this behavior for all
unspecified source locations.

Differential Revision: http://reviews.llvm.org/D24180

llvm-svn: 289468
 2016-12-12 20:49:11 +00:00
Paul Robinson 0a32eab125 Bigger-hammer REQUIRES to fix Windows bot. 
llvm-svn: 289288
 2016-12-09 23:08:17 +00:00
Paul Robinson 5e0bfa4a54 Speculative REQUIRES to fix Windows bot. 
llvm-svn: 289281
 2016-12-09 21:59:00 +00:00
Paul Robinson 4fa7b57a1f [DWARF] Suppress .loc directives from CFI instructions 
Like DBG_VALUE, these emit nothing to the .text section, and sometimes
have no source location specified.  Just ignore them.

Differential Revision: http://reviews.llvm.org/D27492

llvm-svn: 289256
 2016-12-09 19:15:32 +00:00