[PATCH] D45798: LowerTypeTests: Propagate symver directives

[Vlad Tsyrklevich via Phabricator via llvm-commits]

vlad.tsyrklevich created this revision.
vlad.tsyrklevich added a reviewer: pcc.
Herald added subscribers: llvm-commits, eraman, mehdi_amini.

This change fixes https://crbug.com/834474, a build failure caused by
LowerTypeTests not preserving .symver symbol versioning directives for
exported functions. Emit symver information to ThinLTO summary data and
then propagate symver directives for exported functions to the merged
module.

Emitting symver information to the summaries increases the size of
intermediate build artifacts for a Chromium build by less than 0.2%.


Repository:
  rL LLVM

https://reviews.llvm.org/D45798

Files:
  include/llvm/Object/ModuleSymbolTable.h
  lib/Object/ModuleSymbolTable.cpp
  lib/Object/RecordStreamer.cpp
  lib/Object/RecordStreamer.h
  lib/Transforms/IPO/LowerTypeTests.cpp
  lib/Transforms/IPO/ThinLTOBitcodeWriter.cpp
  test/Transforms/LowerTypeTests/export-symver.ll
  test/Transforms/ThinLTOBitcodeWriter/symver.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D45798.143042.patch
Type: text/x-patch
Size: 10241 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20180419/4d4e34bf/attachment.bin>