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llvm-project/clang
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Duncan P. N. Exon Smith 7c41451bc9 PGO: Don't define instrumentation data available_externally 
Variables with available_externally linkage can be dropped at will.
This causes link errors, since there are still references to the
instrumentation!  linkonce_odr is almost equivalent, so use that
instead.

As a drive-by fix (I don't have an Elf system, so I'm not sure how to
write a testcase), use linkonce linkage for the instrumentation of
extern_weak functions.

<rdar://problem/15943240>

llvm-svn: 204408
 		2014-03-20 22:50:08 +00:00
..
INPUTS
…
bindings Use the correct symbol for a left bracket. 2014-03-14 08:39:06 +00:00
docs [msan] -fsanitize-memory-track-origins=[level] flag and docs. 2014-03-20 14:58:36 +00:00
examples Fix build break, replace take() with release(). 2014-03-09 11:46:32 +00:00
include When the exception specification for a function in an imported PCH or module is 2014-03-20 21:47:22 +00:00
lib PGO: Don't define instrumentation data available_externally 2014-03-20 22:50:08 +00:00
runtime [CMake] Teach build system to build/test compiler-rt with a just-built Clang 2014-02-27 09:09:39 +00:00
test PGO: Don't define instrumentation data available_externally 2014-03-20 22:50:08 +00:00
tools [analyzer] scan-build: allow quotes around "-cc1" when looking at -### output. 2014-03-20 17:43:54 +00:00
unittests [libclang] Introduce clang_VirtualFileOverlay_setCaseSensitivity that exposes the VFS option 2014-03-20 04:51:48 +00:00
utils [C++11] Add 'override' keyword to virtual methods that override their base class. 2014-03-11 06:22:39 +00:00
www Tests for DR450-475. 2014-03-19 08:04:12 +00:00
.arcconfig
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.clang-format Switch the default mode for clang-format to '-file'. Make 'LLVM' the 2013-09-02 07:42:02 +00:00
.gitignore
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CMakeLists.txt We now require Visual C++ 2012 (MSVC_VERSION = 1700) or later to build LLVM. 2014-03-04 09:12:17 +00:00
CODE_OWNERS.TXT Adding myself as the code owner for the attribute subsystem. 2014-01-13 22:23:27 +00:00
INSTALL.txt
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LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
Makefile Define ENABLE_CLANG_EXAMPLES instead of relying on BUILD_EXAMPLES 2014-01-08 13:00:32 +00:00
ModuleInfo.txt
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NOTES.txt
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README.txt
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README.txt 

//===----------------------------------------------------------------------===//
// C Language Family Front-end
//===----------------------------------------------------------------------===//

Welcome to Clang.  This is a compiler front-end for the C family of languages
(C, C++, Objective-C, and Objective-C++) which is built as part of the LLVM
compiler infrastructure project.

Unlike many other compiler frontends, Clang is useful for a number of things
beyond just compiling code: we intend for Clang to be host to a number of
different source level tools.  One example of this is the Clang Static Analyzer.

If you're interested in more (including how to build Clang) it is best to read
the relevant web sites.  Here are some pointers:

Information on Clang:              http://clang.llvm.org/
Building and using Clang:          http://clang.llvm.org/get_started.html
Clang Static Analyzer:             http://clang-analyzer.llvm.org/
Information on the LLVM project:   http://llvm.org/

If you have questions or comments about Clang, a great place to discuss them is
on the Clang development mailing list:
  http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev

If you find a bug in Clang, please file it in the LLVM bug tracker:
  http://llvm.org/bugs/