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Justin Lebar 6aa1e32f4a Don't tail-duplicate blocks that contain convergent instructions. 
Summary:
Convergent instrs shouldn't be made control-dependent on other values,
but this is basically the whole point of tail duplication.  So just bail
if we see a convergent instruction.

Reviewers: iteratee

Subscribers: jholewinski, jhen, hfinkel, tra, jingyue, llvm-commits

Differential Revision: http://reviews.llvm.org/D17320

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261540 91177308-0d34-0410-b5e6-96231b3b80d8
2016-02-22 17:50:52 +00:00
bindings Kill LLVMAddTargetData 2016-02-16 00:22:02 +00:00
cmake cmake: Simplify the iOS.cmake toolchain 2016-02-12 23:36:05 +00:00
docs [LPM] Document the new helpers to make it easy to get consistent require 2016-02-19 10:59:43 +00:00
examples Remove autoconf support 2016-01-26 21:29:08 +00:00
include [ConstantRange] Rename a method and add more doc 2016-02-22 16:13:02 +00:00
lib Don't tail-duplicate blocks that contain convergent instructions. 2016-02-22 17:50:52 +00:00
projects Remove autoconf support 2016-01-26 21:29:08 +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 Don't tail-duplicate blocks that contain convergent instructions. 2016-02-22 17:50:52 +00:00
tools Fix some abuse of auto flagged by clang's -Wrange-loop-analysis. 2016-02-22 13:11:58 +00:00
unittests [ConstantRange] Rename a method and add more doc 2016-02-22 16:13:02 +00:00
utils [X86] Remove some unused encoding checks from the disassembler table building. 2016-02-20 06:20:21 +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 adding readability-identifier-naming to llvm clang-tidy configuration. 2015-12-08 17:44:51 +00:00
.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] Properly set CMAKE_BUILD_TYPE to Debug by default 2016-02-18 23:07:09 +00:00
CODE_OWNERS.TXT [docs] Remove references to autotools build. 2016-01-30 01:10:15 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +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 Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
README.txt Revert previous test commit. 2016-01-04 19:13:29 +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.