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Elena Demikhovsky 78405002cf AVX512F: FMA intrinsic + FNEG - sequence optimization 
The previous commit (r280368 - https://reviews.llvm.org/D23313) does not cover AVX-512F, KNL set.
FNEG(x) operation is lowered to (bitcast (vpxor (bitcast x), (bitcast constfp(0x80000000))).
It happens because FP XOR is not supported for 512-bit data types on KNL and we use integer XOR instead.
I added pattern match for integer XOR.

Differential Revision: https://reviews.llvm.org/D24221



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@280785 91177308-0d34-0410-b5e6-96231b3b80d8
2016-09-07 06:54:28 +00:00
bindings Formatting with clang-format patch r280700 2016-09-06 17:03:02 +00:00
cmake [CMake] Cleanup LLVM_OPTIMIZED_TABLEGEN 2016-09-06 20:27:07 +00:00
docs Fixed a typo (LLVM/Support/CFG.h -> LLVM/IR/CFG.h) 2016-09-02 11:13:35 +00:00
examples Fix singlton -> singleton typo. 2016-08-26 02:00:21 +00:00
include Add an c++ itanium demangler to llvm. 2016-09-06 19:16:48 +00:00
lib AVX512F: FMA intrinsic + FNEG - sequence optimization 2016-09-07 06:54:28 +00:00
projects
resources
runtimes [CMake] Connecting check-all and test-depends targets correctly 2016-09-01 18:26:01 +00:00
test AVX512F: FMA intrinsic + FNEG - sequence optimization 2016-09-07 06:54:28 +00:00
tools [opt] Remove an unused argument to runPassPipeline(). 2016-09-07 00:48:47 +00:00
unittests Formatting with clang-format patch r280700 2016-09-06 17:03:02 +00:00
utils [lit] Downgrade error to warning on gtest crashes during discovery. 2016-09-05 20:53:14 +00:00
.arcconfig
.clang-format
.clang-tidy
.gitignore gitignore: ignore VS Code editor files 2016-09-02 22:54:26 +00:00
CMakeLists.txt Try to fix a circular dependency in the modules build. 2016-09-06 20:16:19 +00:00
CODE_OWNERS.TXT CODE_OWNERS: bring my entry up to date 2016-09-05 17:42:46 +00:00
configure
CREDITS.TXT Shamelessly add myself to CREDITS.TXT 2016-08-04 16:28:22 +00:00
LICENSE.TXT Remove autoconf references from LICENSE.TXT 2016-08-12 20:11:03 +00:00
llvm.spec.in
LLVMBuild.txt
README.txt Revert rL277454 2016-08-02 13:26:07 +00:00
RELEASE_TESTERS.TXT Adding RELEASE_TESTERS.TXT 2016-07-21 16:46:44 +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.