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7cab062130
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Abhilash Bhandari 7cab062130 [Loop Unswitch] Patch to selective unswitch only the reachable branch instructions. 
Summary:
The iterative algorithm for Loop Unswitching may render some of the branches unreachable in the unswitched loops.
Given the exponential nature of the algorithm, this is quite an overhead.
This patch fixes this problem by selectively unswitching only those branches within a loop that are reachable from the loop header.

Reviewers: Michael Zolothukin, Anna Thomas, Weiming Zhao.
Subscribers: llvm-commits.

Differential Revision: http://reviews.llvm.org/D26299

llvm-svn: 287925
2016-11-25 14:07:44 +00:00
bindings Fix go binding to adapt the new attribute API 2016-11-18 10:11:02 +00:00
cmake [CMake] Apply sandbox profile to target not directory 2016-11-19 01:32:09 +00:00
docs Fix doc of llvm.bitreverse.iN 2016-11-23 16:25:31 +00:00
examples ExceptionDemo: remove some undefined behaviour 2016-11-20 02:36:38 +00:00
include [CommandLine] Remove redundant initializers for StringRef members 2016-11-24 08:54:05 +00:00
lib [Loop Unswitch] Patch to selective unswitch only the reachable branch instructions. 2016-11-25 14:07:44 +00:00
projects [CMake] Correct configuration order of the sub-projects based on ther dependancies 2016-10-09 20:38:29 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake] Make the runtimes directory work with bootstrap builds 2016-10-19 21:50:25 +00:00
test [Loop Unswitch] Patch to selective unswitch only the reachable branch instructions. 2016-11-25 14:07:44 +00:00
tools Object: Add IRObjectFile::getTargetTriple(). 2016-11-24 01:13:09 +00:00
unittests [PM] Change the static object whose address is used to uniquely identify 2016-11-23 17:53:26 +00:00
utils TableGen: Allow signed immediates for instruction aliases 2016-11-24 08:53:28 +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 Test commit. 2014-03-02 13:08:46 +00:00
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: ignore VS Code editor files 2016-09-02 22:54:26 +00:00
CMakeLists.txt Add an option to disable libedit 2016-11-18 01:25:49 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of the X86 backend. 2016-11-12 05:16:06 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Test Commit, removing a blank line in CREDITS.TXT 2016-11-24 15:40:19 +00:00
LICENSE.TXT Remove autoconf references from LICENSE.TXT 2016-08-12 20:11:03 +00:00
llvm.spec.in [Sparc] Implement i64 load/store support for 32-bit sparc. 2015-08-10 19:11:39 +00:00
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 Adding RELEASE_TESTERS.TXT 2016-07-21 16:46:44 +00:00

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.