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Teresa Johnson a4ca999339 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

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@291177 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-05 21:34:18 +00:00
bindings Fix go bindings after r289702 (hopefully, don't really know how to build 2016-12-15 06:54:29 +00:00
cmake [gtest] Fix the way we disable a warning for unittests. 2017-01-04 23:40:06 +00:00
docs [Docs] Update docs to indicate that CUDA compilation is supported on Windows. 2017-01-05 16:54:28 +00:00
examples BrainF example: fixing segfault caused by outdated code with missing MCJIT dependency 2016-12-15 19:29:42 +00:00
include ThinLTO: add early "dead-stripping" on the Index 2017-01-05 21:34:18 +00:00
lib ThinLTO: add early "dead-stripping" on the Index 2017-01-05 21:34:18 +00:00
projects [CMake] Correct configuration order of the sub-projects based on ther dependancies 2016-10-09 20:38:29 +00:00
resources
runtimes [CMake] Set HAVE_${runtime} before including any subdirectories 2017-01-02 20:33:33 +00:00
test ThinLTO: add early "dead-stripping" on the Index 2017-01-05 21:34:18 +00:00
tools MC: support passing search paths to the IAS 2017-01-05 05:56:39 +00:00
unittests [gtest] Fix the way we disable a warning for unittests. 2017-01-04 23:40:06 +00:00
utils [gtest] Work around broken installs of libc++ where we don't have 2017-01-05 01:41:49 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy
.gitignore [AVR] Add the integrated testing tool to the .gitignore 2016-12-14 11:47:14 +00:00
CMakeLists.txt Build KillTheDoctor with mingw-w64 2016-12-22 19:11:42 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of IR Linker as discussed on llvm-dev 2016-12-02 14:06:53 +00:00
configure
CREDITS.TXT Revert revision 289721. 2016-12-14 21:58:42 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
README.txt Test commit, deleted empty line at the end of README.txt 2016-11-07 18:31:21 +00:00
RELEASE_TESTERS.TXT

README.txt 

Low Level Virtual Machine (LLVM)
================================

This directory and its subdirectories contain source code for LLVM,
a toolkit for the construction of highly optimized compilers,
optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
the license agreement found in LICENSE.txt.

Please see the documentation provided in docs/ for further
assistance with LLVM, and in particular docs/GettingStarted.rst for getting
started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

If you are writing a package for LLVM, see docs/Packaging.rst for our
suggestions.