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Simon Pilgrim 91451ab4d4 [x86, SSE] AVX1 PR28129 (256-bit all-ones rematerialization) 
Further perf tests on Jaguar indicate that:

vxorps  %ymm0, %ymm0, %ymm0
vcmpps  $15, %ymm0, %ymm0, %ymm0

is consistently faster (by about 9%) than:

vpcmpeqd  %xmm0, %xmm0, %xmm0
vinsertf128  $1, %xmm0, %ymm0, %ymm0

Testing equivalent code on a SandyBridge (E5-2640) puts it slightly (~3%) faster as well.

Committed on behalf of @dtemirbulatov

Differential Revision: https://reviews.llvm.org/D32416

llvm-svn: 302989
2017-05-13 13:42:35 +00:00
bindings [go bindings] Rmove duplicated conversion function definitions after r300843. 2017-04-20 19:06:11 +00:00
cmake Revert "Revert "CMake: Move sphinx detection into AddSphinxTarget.cmake"" 2017-05-09 01:41:28 +00:00
docs [Doc] Document "Splat" in the lexicon 2017-05-12 21:30:31 +00:00
examples [Kaleidoscope] toy.cpp use after move fix 2017-05-07 11:00:01 +00:00
include This reverts r302984 2017-05-13 10:59:05 +00:00
lib [x86, SSE] AVX1 PR28129 (256-bit all-ones rematerialization) 2017-05-13 13:42:35 +00:00
projects Add temporary workaround to allow in-tree libc++ builds on Windows 2017-05-11 01:44:30 +00:00
resources In MSVC builds embed a VERSIONINFO resource in our exe and DLL files. 2015-06-12 15:58:29 +00:00
runtimes [CMake][runtimes] Use -nodefaultlibs for the runtimes build 2017-04-13 21:29:03 +00:00
test [x86, SSE] AVX1 PR28129 (256-bit all-ones rematerialization) 2017-05-13 13:42:35 +00:00
tools [CodeView] Add a random access type visitor. 2017-05-12 19:18:12 +00:00
unittests [CodeView] Silence some -Wsign-compare warnings 2017-05-13 00:11:39 +00:00
utils [git-llvm] Fix svn:eol-style issue for one-file patches 2017-05-12 00:10:19 +00:00
.arcconfig project_id is from another era in phabricator land and does not provide any value. 2016-09-27 15:47:29 +00:00
.clang-format
.clang-tidy .clang-tidy: correct style name is 'camelBack' not 'lowerCase'. 2016-09-13 19:04:26 +00:00
.gitignore gitignore: Ignore .vs folder (VS2017 config files) 2017-04-08 00:16:58 +00:00
CMakeLists.txt CMake: Add LLVM_DYLIB_SYMBOL_VERSIONING option 2017-05-03 14:43:44 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take code ownership of instruction scheduling. 2017-03-10 18:34:37 +00:00
configure Remove autoconf support 2016-01-26 21:29:08 +00:00
CREDITS.TXT CODE_OWNERS: Take code ownership of instruction scheduling. 2017-03-10 18:34:37 +00:00
LICENSE.TXT Bump year to 2017 in LICENSE.txt 2017-01-12 18:02:42 +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
README.txt Test commit. Added a blank line. 2017-03-06 20:45:33 +00:00
RELEASE_TESTERS.TXT Update the release tester for MIPS. NFC. 2017-01-17 11:00:28 +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,
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LLVM is open source software. You may freely distribute it under the terms of
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Please see the documentation provided in docs/ for further
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If you are writing a package for LLVM, see docs/Packaging.rst for our
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