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3c02165172
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Filipe Cabecinhas 3c02165172 Optimization for certain shufflevector by using insertps. 
Summary:
If we're doing a v4f32/v4i32 shuffle on x86 with SSE4.1, we can lower
certain shufflevectors to an insertps instruction:
When most of the shufflevector result's elements come from one vector (and
keep their index), and one element comes from another vector or a memory
operand.

Added tests for insertps optimizations on shufflevector.
Added support and tests for v4i32 vector optimization.

Reviewers: nadav

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D3475

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207291 91177308-0d34-0410-b5e6-96231b3b80d8
2014-04-25 23:51:17 +00:00
autoconf ARM64: initial backend import 2014-03-29 10:18:08 +00:00
bindings [python] Fix getting section contents. 2014-04-25 06:25:15 +00:00
cmake Added Sphinx documentation generation to CMake build system. 2014-04-18 21:45:25 +00:00
docs Add 'musttail' marker to call instructions 2014-04-24 20:14:34 +00:00
examples Fix warnings about an variable only used in asserts. 2014-03-06 06:35:46 +00:00
include Revert "blockfreq: Approximate irreducible control flow" 2014-04-25 23:16:58 +00:00
lib Optimization for certain shufflevector by using insertps. 2014-04-25 23:51:17 +00:00
projects Remove projects/sample. 2014-03-12 22:40:22 +00:00
test Optimization for certain shufflevector by using insertps. 2014-04-25 23:51:17 +00:00
tools Add an -mattr option to the gold plugin to support subtarget features in LTO 2014-04-25 21:46:51 +00:00
unittests DIE: Pass ownership of children via std::unique_ptr rather than raw pointer. 2014-04-25 20:00:34 +00:00
utils llvm-build: Get rid of 'import *' 2014-04-23 19:17:42 +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
.gitignore Remove projects/sample. 2014-03-12 22:40:22 +00:00
CMakeLists.txt Added Sphinx documentation generation to CMake build system. 2014-04-18 21:45:25 +00:00
CODE_OWNERS.TXT ARM Linux support 2014-04-02 23:03:28 +00:00
configure ARM64: initial backend import 2014-03-29 10:18:08 +00:00
CREDITS.TXT Test commit. 2014-04-10 22:25:51 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common
Makefile.config.in Add a --enable-clang-plugin-support option to configure. 2014-03-10 16:58:35 +00:00
Makefile.rules Use -std=gnu++11 on cygwin and mingw. 2014-03-12 20:01:15 +00:00
README.txt Revert "Test commit to check e-mail address. Please discard this." 2013-10-04 10:59:13 +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.