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Author SHA1 Message Date
Teresa Johnson 83c517c44e Restore "[ThinLTO] Serialize the Module SourceFileName to/from LLVM assembly" 
This restores commit 264869, with a fix for windows bots to properly
escape '\' in the path when serializing out. Added test.

llvm-svn: 264884
 2016-03-30 18:15:08 +00:00
Teresa Johnson 20beeea24a Revert "[ThinLTO] Serialize the Module SourceFileName to/from LLVM assembly" 
This reverts commit r264869. I am seeing Windows bot failures due to the
"\" in the path being mishandled at some point (seems to be interpreted
wrongly at some point and llvm-as | llvm-dis is yielding some junk
characters). Need to investigate.

llvm-svn: 264871
 2016-03-30 15:16:04 +00:00
Teresa Johnson 832a6790f6 [ThinLTO] Serialize the Module SourceFileName to/from LLVM assembly 
Summary:
This change serializes out and in the SourceFileName to LLVM assembly
so that it is preserved through "llvm-dis | llvm-as". This is
necessary to ensure that the global identifiers created for local values
in the module summary index are the same even if the bitcode is
streamed out and read back from LLVM assembly.

Serializing the summary itself to LLVM assembly is in progress.

Reviewers: joker.eph

Subscribers: llvm-commits, joker.eph

Differential Revision: http://reviews.llvm.org/D18588

llvm-svn: 264869
 2016-03-30 14:00:02 +00:00