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Mirror of https://github.com/RPCS3/llvm-mirror
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Sanjay Patel f8bef0feec Use broadcasts to optimize overall size when loading constant splat vectors (x86-64 with AVX or AVX2). 
We generate broadcast instructions on CPUs with AVX2 to load some constant splat vectors.
This patch should preserve all existing behavior with regular optimization levels, 
but also use splats whenever possible when optimizing for *size* on any CPU with AVX or AVX2.

The tradeoff is up to 5 extra instruction bytes for the broadcast instruction to save
at least 8 bytes (up to 31 bytes) of constant pool data.

Differential Revision: http://reviews.llvm.org/D5347

llvm-svn: 218263
2014-09-22 18:54:01 +00:00
autoconf Delete support for AuroraUX. 2014-08-14 15:15:09 +00:00
bindings Reinstate "Nuke the old JIT." 2014-09-02 22:28:02 +00:00
cmake Add CMake check for libatomic. 2014-09-12 11:08:59 +00:00
docs Fix sphinx warning. 2014-09-18 21:54:02 +00:00
examples Add doInitialization/doFinalization to DataLayoutPass. 2014-09-10 21:27:43 +00:00
include Update comment on AtomicRMWInst::Nand 2014-09-22 06:47:10 +00:00
lib Use broadcasts to optimize overall size when loading constant splat vectors (x86-64 with AVX or AVX2). 2014-09-22 18:54:01 +00:00
projects [cmake] Use the external project machinery for libcxxabi so that it can 2014-07-25 10:27:40 +00:00
test Use broadcasts to optimize overall size when loading constant splat vectors (x86-64 with AVX or AVX2). 2014-09-22 18:54:01 +00:00
tools llvm-cov: Allow creating CoverageMappings from filenames 2014-09-20 17:19:52 +00:00
unittests Add hsail and amdil64 to Triple 2014-09-19 19:52:11 +00:00
utils [lit] Parse all strings as UTF-8 rather than ASCII. 2014-09-12 16:46:05 +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 Add .clang-tidy configuration file to provide LLVM-optimized defaults for 2014-09-08 13:30:00 +00:00
.gitignore Add Polly to the ignored trees. 2014-06-25 13:13:36 +00:00
CMakeLists.txt Enabling LLVM & Clang to be cross-compiled using CMake from a single configuration command line 2014-09-03 23:21:18 +00:00
CODE_OWNERS.TXT Add Tom Stellard's role as 3.5 release manager. 2014-09-12 08:07:31 +00:00
configure Delete support for AuroraUX. 2014-08-14 15:15:09 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT Remove projects/sample. 2014-03-12 22:40:22 +00:00
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile [configure/make] Propagate names of build host tools when making BuildTools 2014-03-25 21:45:41 +00:00
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Track clang r213171 2014-07-16 16:50:34 +00:00
Makefile.rules Revert my earlier change to add "all" as a dependency to check. In 2014-09-19 18:44:27 +00:00
README.txt Trivial test commit. 2014-04-26 19:05:45 +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.