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Mirror of https://github.com/RPCS3/llvm-mirror
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Sanjay Patel e582594538 [x86] avoid code explosion from LoopVectorizer for gather loop (PR27826) 
By making pointer extraction from a vector more expensive in the cost model,
we avoid the vectorization of a loop that is very likely to be memory-bound:
https://llvm.org/bugs/show_bug.cgi?id=27826

There are still bugs related to this, so we may need a more general solution
to avoid vectorizing obviously memory-bound loops when we don't have HW gather
support.

Differential Revision: http://reviews.llvm.org/D20601

llvm-svn: 270729
2016-05-25 17:27:54 +00:00
bindings Remove every uses of getGlobalContext() in LLVM (but the C API) 2016-04-14 21:59:01 +00:00
cmake [CMake] LINK_LIBS need to be public for Darwin dylib targets 2016-05-25 17:08:43 +00:00
docs [libfuzzer][doc] documenting running libfuzzer tests. 2016-05-24 22:25:46 +00:00
examples Fix some Include What You Use warnings in examples; other minor fixes. 2016-05-25 01:18:36 +00:00
include Add a new helper API in triple /NFC 2016-05-25 17:11:31 +00:00
lib [x86] avoid code explosion from LoopVectorizer for gather loop (PR27826) 2016-05-25 17:27:54 +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 [x86] avoid code explosion from LoopVectorizer for gather loop (PR27826) 2016-05-25 17:27:54 +00:00
tools [obj2yaml] [yaml2obj] MachO support for rebase opcodes 2016-05-25 17:09:07 +00:00
unittests LiveIntervalAnalysis: Fix handleMove() re-using the wrong value number 2016-05-24 21:54:01 +00:00
utils Fix Clang-tidy modernize-use-bool-literals in generated Target code; other minor fixes; other minor fixes. 2016-05-17 17:04:23 +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 Don't use misc-unused-parameters check on LLVM. 2016-04-13 08:58:52 +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 Remove LLVM_ENABLE_TIMESTAMPS 2016-05-05 19:57:03 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of SelectionDAG 2016-05-20 19:14:04 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT Update my email address. 2016-05-10 16:23:54 +00:00
LICENSE.TXT Update copyright year to 2016. 2016-03-30 22:41:06 +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.