Teresa Johnson 6c475a7595 ThinLTO: add early "dead-stripping" on the Index ... Summary: Using the linker-supplied list of "preserved" symbols, we can compute the list of "dead" symbols, i.e. the one that are not reachable from a "preserved" symbol transitively on the reference graph. Right now we are using this information to mark these functions as non-eligible for import. The impact is two folds: - Reduction of compile time: we don't import these functions anywhere or import the function these symbols are calling. - The limited number of import/export leads to better internalization. Patch originally by Mehdi Amini. Reviewers: mehdi_amini, pcc Subscribers: llvm-commits Differential Revision: https://reviews.llvm.org/D23488 llvm-svn: 291177		2017-01-05 21:34:18 +00:00
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CMakeLists.txt	[CMake] NFC. Updating CMake dependency specifications	2016-11-17 04:36:50 +00:00
Caching.cpp	Add qualification to fix MSVC build.	2016-09-23 23:23:23 +00:00
LLVMBuild.txt	[lib/LTO] Add a way to run a custom pipeline	2016-09-07 17:46:16 +00:00
LTO.cpp	ThinLTO: add early "dead-stripping" on the Index	2017-01-05 21:34:18 +00:00
LTOBackend.cpp	[ThinLTO] Import composite types as declarations	2016-12-16 21:25:01 +00:00
LTOCodeGenerator.cpp	[LTOs] Allow generation of hotness information	2016-12-02 17:53:56 +00:00
LTOModule.cpp	[LTO] Reject modules without datalayout.	2016-12-14 21:57:04 +00:00
ThinLTOCodeGenerator.cpp	ThinLTO: add early "dead-stripping" on the Index	2017-01-05 21:34:18 +00:00
UpdateCompilerUsed.cpp	Utility functions for appending to llvm.used/llvm.compiler.used.	2016-10-25 23:53:31 +00:00