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cd2999ea45
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Evgeniy Stepanov cd2999ea45 [asan] Put ctor/dtor in comdat. 
When possible, put ASan ctor/dtor in comdat.

The only reason not to is global registration, which can be
TU-specific. This is not the case when there are no instrumented
globals. This is also limited to ELF targets, because MachO does
not have comdat, and COFF linkers may GC comdat constructors.

The benefit of this is a lot less __asan_init() calls: one per DSO
instead of one per TU. It's also necessary for the upcoming
gc-sections-for-globals change on Linux, where multiple references to
section start symbols trigger quadratic behaviour in gold linker.

This is a second re-land of r298756. This time with a flag to disable
the whole thing to avoid a bug in the gold linker:
  https://sourceware.org/bugzilla/show_bug.cgi?id=19002

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@301586 91177308-0d34-0410-b5e6-96231b3b80d8
2017-04-27 20:27:23 +00:00
bindings [go bindings] Rmove duplicated conversion function definitions after r300843. 2017-04-20 19:06:11 +00:00
cmake [LLVM][MIPS] Fix different definition of off_t in LLDB and LLVM. 2017-04-24 10:36:46 +00:00
docs Sync with changes from r300825 in clang. 2017-04-27 17:23:53 +00:00
examples Module::getOrInsertFunction is using C-style vararg instead of variadic templates. 2017-04-11 15:01:18 +00:00
include [llvm-readobj] Dump COFF Resources section. 2017-04-27 19:38:38 +00:00
lib [asan] Put ctor/dtor in comdat. 2017-04-27 20:27:23 +00:00
projects [cmake] Include openmp with add_llvm_external_project 2017-03-07 18:54:17 +00:00
resources
runtimes [CMake][runtimes] Use -nodefaultlibs for the runtimes build 2017-04-13 21:29:03 +00:00
test [asan] Put ctor/dtor in comdat. 2017-04-27 20:27:23 +00:00
tools [llvm-readobj] Dump COFF Resources section. 2017-04-27 19:38:38 +00:00
unittests Limit disabling of warnings emitted from r301571 by checking __GNUC__. 2017-04-27 18:05:29 +00:00
utils Fixed assert message to correctly refer to MRMSrcReg4VOp3Frm/MRMSrcMeg4VOp3Frm. 2017-04-27 14:25:04 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt Allow suppressing host and target info in VersionPrinter 2017-04-19 00:03:36 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take code ownership of instruction scheduling. 2017-03-10 18:34:37 +00:00
configure
CREDITS.TXT CODE_OWNERS: Take code ownership of instruction scheduling. 2017-03-10 18:34:37 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt
README.txt Test commit. Added a blank line. 2017-03-06 20:45:33 +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.