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Chen Li e7f20703a2 [IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader Summary: This patch adds support to check if a loop has loop invariant conditions which lead to loop exits. If so, we know that if the exit path is taken, it is at the first loop iteration. If there is an induction variable used in that exit path whose value has not been updated, it will keep its initial value passing from loop preheader. We can therefore rewrite the exit value with its initial value. This will help remove phis created by LCSSA and enable other optimizations like loop unswitch. Reviewers: sanjoy Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D13974 llvm-svn: 251839		2015-11-02 22:00:15 +00:00
autoconf	Don't use bashism/kshism of test ==. From Kamil Rytarowski.	2015-09-12 16:30:32 +00:00
bindings	[OCaml] Expose Llvm.{set_,}unnamed_addr.	2015-10-21 17:43:02 +00:00
cmake	Revert parts accidentally included in r251823	2015-11-02 20:05:54 +00:00
docs	docs: document `x` mangling in LangRef	2015-10-25 20:39:35 +00:00
examples	[JIT/Examples] Fix Fibonacci so that it runs again.	2015-10-17 06:36:46 +00:00
include	Support for ThinLTO function importing and symbol linking.	2015-11-02 21:39:10 +00:00
lib	[IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader	2015-11-02 22:00:15 +00:00
projects	[CMake] Disable adding the test suite as a projects subdirectory	2015-10-28 18:36:56 +00:00
resources	In MSVC builds embed a VERSIONINFO resource in our exe and DLL files.	2015-06-12 15:58:29 +00:00
test	[IndVarSimplify] Rewrite loop exit values with their initial values from loop preheader	2015-11-02 22:00:15 +00:00
tools	Support for ThinLTO function importing and symbol linking.	2015-11-02 21:39:10 +00:00
unittests	[Support] Extend sys::path with user_cache_directory function.	2015-11-02 09:49:17 +00:00
utils	lit: Add '-a' option to display commands+output of all tests	2015-11-02 16:13:46 +00:00
.arcconfig	Updated phabricator server.	2014-04-07 03:57:04 +00:00
.clang-format	Test commit.	2014-03-02 13:08:46 +00:00
.clang-tidy
.gitignore	Minor updates to gitignore so that symlinks are ignored in the projects dir.	2015-07-07 20:24:58 +00:00
CMakeLists.txt	[CMake] Get rid of LLVM_DYLIB_EXPORT_ALL, and make it the default, add libLLVM-C on darwin to cover the C API needs.	2015-10-27 16:02:04 +00:00
CODE_OWNERS.TXT	Add myself as the the code owner for the AVR backend	2015-10-28 00:24:54 +00:00
configure	Don't use bashism/kshism of test ==. From Kamil Rytarowski.	2015-09-12 16:30:32 +00:00
CREDITS.TXT	[WebAssembly] Initial WebAssembly backend	2015-06-29 23:51:55 +00:00
LICENSE.TXT	Update for a new year.	2015-03-12 01:25:29 +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
Makefile
Makefile.common
Makefile.config.in	We're actually -Wmissing-field-initializers clean thanks to the cmake	2015-08-07 16:44:47 +00:00
Makefile.rules	We're actually -Wmissing-field-initializers clean thanks to the cmake	2015-08-07 16:44:47 +00:00
README.txt	Revert test commit at revision 233535.	2015-03-30 12:39:03 +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're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.