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Author SHA1 Message Date
Peter Collingbourne 69dd7cd45e MC: Redirect .addrsig directives referring to private (.L) symbols to the section symbol. 
This matches our behaviour for regular (i.e. relocated) references to
private symbols and therefore avoids needing to unnecessarily write
address-significant .L symbols to the object file's symbol table,
which can interfere with stack traces.

Fixes check-cfi after r339050.

llvm-svn: 339066
 2018-08-06 21:59:58 +00:00
Peter Collingbourne 3e22733698 MC: Implement support for new .addrsig and .addrsig_sym directives. 
Part of the address-significance tables proposal:
http://lists.llvm.org/pipermail/llvm-dev/2018-May/123514.html

Differential Revision: https://reviews.llvm.org/D47744

llvm-svn: 337328
 2018-07-17 22:17:18 +00:00