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Cameron Zwarich b90180665d Add support for updating LiveIntervals to PHIElimination. If LiveIntervals are 
present, it currently verifies them with the MachineVerifier, and this passed
all of the test cases in 'make check' (when accounting for existing verifier
errors). There were some assertion failures in the two-address pass, but they
also happened on code without phis and look like they are caused by different
kill flags from LiveIntervals.

The only part that doesn't work is the critical edge splitting heuristic,
because there isn't currently an efficient way to update LiveIntervals after
splitting an edge. I'll probably start by implementing the slow fallback and
test that it works before tackling the fast path for single-block ranges. The
existing code that updates LiveVariables is fairly slow as it is.

There isn't a command-line option for enabling this; instead, just edit
PHIElimination.cpp to require LiveIntervals.

llvm-svn: 174831
2013-02-10 06:42:36 +00:00
autoconf configure: when performing a compiler feature test for a -Wno-foo flag, attempt 2013-02-08 22:55:10 +00:00
bindings [python] Add markup option to disassembler 2012-12-01 21:57:30 +00:00
cmake CMake: Use check_symbol_exists instead of check_cxx_symbol_exists. 2013-02-08 23:17:31 +00:00
docs ReleaseNotes: Add section for R600 backend 2013-02-08 22:24:41 +00:00
examples Update links to "Itanium C++ ABI: Exception Handling" document 2013-01-13 15:53:09 +00:00
include ok, ok, stop fighting type punning warnings by just using a union. 2013-02-10 06:36:29 +00:00
lib Add support for updating LiveIntervals to PHIElimination. If LiveIntervals are 2013-02-10 06:42:36 +00:00
projects Set the deployment target for Apple llvmCore builds. <rdar://problem/12712431> 2013-02-05 17:29:03 +00:00
runtime libprofile/CommonProfiling.c: Fix according to C89. 2012-11-02 01:32:02 +00:00
test LSR IVChain improvement. 2013-02-09 01:11:01 +00:00
tools [readobj] Fix memory leak. 2013-02-08 01:05:48 +00:00
unittests ADT: Correct APInt::getActiveWords for zero values 2013-02-07 18:36:50 +00:00
utils [lit] Add a display function for lit.Test.TestResult. 2013-02-07 21:34:34 +00:00
.arcconfig Add .arcconfig to the repository. Useful if someone wants to use phabricator's command line tool. 2012-12-01 12:07:58 +00:00
.gitignore Add extra vim swap file pattern 2012-10-09 23:48:34 +00:00
CMakeLists.txt Enable AArch64 as a target built by default. 2013-02-04 12:32:21 +00:00
CODE_OWNERS.TXT Add myself as code owner of AArch64 backend. 2013-01-31 12:51:16 +00:00
configure configure: when performing a compiler feature test for a -Wno-foo flag, attempt 2013-02-08 22:55:10 +00:00
CREDITS.TXT Update my email address. 2012-11-29 21:17:26 +00:00
LICENSE.TXT Add LICENSE.TXT covering contributions made by ARM. 2013-01-07 10:04:49 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile Improved svn repo searching for 'make update' 2013-01-28 03:19:57 +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 Pass CPPFLAGS/CFLAGS/CXXFLAGS from the environment of configure to 2013-02-04 08:15:53 +00:00
Makefile.rules Set the deployment target for Apple llvmCore builds. <rdar://problem/12712431> 2013-02-05 17:29:03 +00:00
README.txt Update README.txt to more accurately reflect reality. 2013-01-08 02:35:15 +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,
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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.