Peter Collingbourne 052412f4f5 LTO: Mark undefined module asm symbols as used. ... Marking them as used causes them to be considered visible outside of LTO. This prevents the symbols from being internalized or discarded, either by GlobalDCE or by summary-based dead stripping in ThinLTO. This change makes it unnecessary to add these symbols to llvm.compiler.used in the backend, as the symbols are kept alive by virtue of being external, so remove the backend code that handles that. Fixes PR32798. Differential Revision: https://reviews.llvm.org/D32544 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301438 91177308-0d34-0410-b5e6-96231b3b80d8		2017-04-26 17:53:39 +00:00
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ARM	Introduce Target::createNullTargetStreamer and use it from IRObjectFile.	2015-02-19 00:45:02 +00:00
Resolution/X86	LTO: Mark undefined module asm symbols as used.	2017-04-26 17:53:39 +00:00
X86	llvm-lto2: Move the LTO::run() action behind a subcommand.	2017-04-11 18:12:00 +00:00