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Diego Novillo f05b45fdb2 Pass to emit DWARF path discriminators. 
DWARF discriminators are used to distinguish multiple control flow paths
on the same source location. When this happens, instructions across
basic block boundaries will share the same debug location.

This pass detects this situation and creates a new lexical scope to one
of the two instructions. This lexical scope is a child scope of the
original and contains a new discriminator value. This discriminator is
then picked up from MCObjectStreamer::EmitDwarfLocDirective to be
written on the object file.

This fixes http://llvm.org/bugs/show_bug.cgi?id=18270.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202752 91177308-0d34-0410-b5e6-96231b3b80d8
2014-03-03 20:06:11 +00:00
autoconf Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
bindings [python-bindings] Remove some cruft that snuck in. 2014-02-23 04:43:26 +00:00
cmake [C++11] Switch the CMake option from LLVM_ENABLE_CXX11 (default on) to 2014-03-01 03:16:07 +00:00
docs Document that std::initializer_list is not always available. 2014-03-03 19:54:42 +00:00
examples Use DataLayout from the module when easily available. 2014-02-25 23:25:17 +00:00
include Pass to emit DWARF path discriminators. 2014-03-03 20:06:11 +00:00
lib Pass to emit DWARF path discriminators. 2014-03-03 20:06:11 +00:00
projects Drop libtool from llvm. 2014-02-28 18:17:54 +00:00
test Pass to emit DWARF path discriminators. 2014-03-03 20:06:11 +00:00
tools Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
unittests Give APInt move semantics. 2014-03-02 20:56:28 +00:00
utils [C++11] Use std::tie to simplify compare operators. 2014-03-03 19:58:30 +00:00
.arcconfig
.clang-format Test commit. 2014-03-02 13:08:46 +00:00
.gitignore Added .DS_Store entry in .gitignore for ignoring .DS_Store files in the source 2014-01-25 15:15:16 +00:00
CMakeLists.txt Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
CODE_OWNERS.TXT Add myself as owner for libc++ 2014-02-18 14:03:17 +00:00
configure Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
CREDITS.TXT Fix documentation typos 2013-12-20 00:33:39 +00:00
LICENSE.TXT Update the copyright credits -- Happy new year 2014! 2014-01-01 08:27:31 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile Provide CMake package modules in install tree 2014-02-09 16:37:02 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
Makefile.rules Add patch level to llvm version in CMake and Autoconf 2014-03-03 15:22:00 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +00:00

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
Virtual Machine, a toolkit for the construction of highly optimized compilers,
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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
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started with LLVM and docs/README.txt for an overview of LLVM's
documentation setup.

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