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llvm-project/llvm/lib/Object
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Peter Collingbourne fa58f7528e 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

llvm-svn: 301438
 		2017-04-26 17:53:39 +00:00
..
Archive.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-19 23:02:10 +00:00
ArchiveWriter.cpp ArchiveWriter: Remove unused variables. NFC. 2017-03-16 20:35:07 +00:00
Binary.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-19 23:02:10 +00:00
CMakeLists.txt Re-apply r299168 and r299169 now that the libdeps are fixed. 2017-03-31 04:47:07 +00:00
COFFObjectFile.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-19 23:02:10 +00:00
Decompressor.cpp Recommit r292214 "[Support/Compression] - Change zlib API to return Error instead of custom status" 2017-01-17 15:45:07 +00:00
ELF.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-24 23:21:38 +00:00
ELFObjectFile.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-24 23:21:38 +00:00
Error.cpp Make the Error class constructor protected 2016-11-11 04:28:40 +00:00
IRObjectFile.cpp [ThinLTO] Import composite types as declarations 2016-12-16 21:25:01 +00:00
IRSymtab.cpp LTO: Mark undefined module asm symbols as used. 2017-04-26 17:53:39 +00:00
LLVMBuild.txt
…
MachOObjectFile.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-21 22:03:05 +00:00
MachOUniversal.cpp Fix a bugs with using some Mach-O command line flags like "-arch armv7m". 2016-12-16 22:54:02 +00:00
ModuleSummaryIndexObjectFile.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-21 22:03:05 +00:00
ModuleSymbolTable.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-24 23:21:38 +00:00
Object.cpp Thread Expected<...> up from libObject’s getSymbolAddress() for symbols to allow 2016-06-24 18:24:42 +00:00
ObjectFile.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-19 23:02:10 +00:00
RecordStreamer.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-24 23:21:38 +00:00
RecordStreamer.h [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-24 23:21:38 +00:00
SymbolSize.cpp Fix llvm-symbolizer to correctly sort a symbol array and calculate symbol sizes 2016-11-15 21:07:03 +00:00
SymbolicFile.cpp [Object] Fix some Clang-tidy modernize and Include What You Use warnings; other minor fixes (NFC). 2017-04-19 23:02:10 +00:00
WasmObjectFile.cpp revert debugging 2017-04-26 00:02:39 +00:00