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4 Commits

Author SHA1 Message Date
Peter Collingbourne 002c2d5380 ThinLTOBitcodeWriter: Write available_externally copies of VCP eligible functions to merged module. 
Differential Revision: https://reviews.llvm.org/D29701

llvm-svn: 295021
 2017-02-14 03:42:38 +00:00
Peter Collingbourne 28ffd3261f ThinLTOBitcodeWriter: Strip debug info from merged module. 
This module will contain nothing but vtable definitions and (soon)
available_externally function definitions, so there is no point in keeping
debug info in the module.

Differential Revision: https://reviews.llvm.org/D28913

llvm-svn: 294511
 2017-02-08 20:44:00 +00:00
Peter Collingbourne 20a00933fb ThinLTOBitcodeWriter: Clear comdats on filtered globals. 
Differential Revision: https://reviews.llvm.org/D28839

llvm-svn: 292431
 2017-01-18 20:03:02 +00:00
Peter Collingbourne 1398a32e28 IPO: Introduce ThinLTOBitcodeWriter pass. 
This pass prepares a module containing type metadata for ThinLTO by splitting
it into regular and thin LTO parts if possible, and writing both parts to
a multi-module bitcode file. Modules that do not contain type metadata are
written unmodified as a single module.

All globals with type metadata are added to the regular LTO module, and
the rest are added to the thin LTO module.

Differential Revision: https://reviews.llvm.org/D27324

llvm-svn: 289899
 2016-12-16 00:26:30 +00:00