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8368f754a7
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Craig Topper 8368f754a7 [X86] Remove another weird scalar sqrt/rcp/rsqrt pattern. 
This pattern turned a vector sqrt/rcp/rsqrt operation of sse_load_f32/f64 into the the scalar instruction for the operation and put undef into the upper bits. For correctness, the resulting code should still perform the sqrt/rcp/rsqrt on the upper bits after the load is extended since that's what the operation asked for. Particularly in the case where the upper bits are 0, in that case we need calculate the sqrt/rcp/rsqrt of the zeroes and keep the result in the upper-bits. This implies we should be using the packed instruction still.

The only test case for this pattern is one I just added so there was no coverage of this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@288784 91177308-0d34-0410-b5e6-96231b3b80d8
2016-12-06 08:08:12 +00:00
bindings Fix go binding to adapt the new attribute API 2016-11-18 10:11:02 +00:00
cmake [CMake] Cleanup TableGen include flags 2016-12-06 04:45:11 +00:00
docs [doc] Add .arcconfig setup to the "how to work with a monorepo" section 2016-12-03 01:04:40 +00:00
examples ExceptionDemo: remove some undefined behaviour 2016-11-20 02:36:38 +00:00
include [ObjectYAML] First bit of support for encoding DWARF in MachO 2016-12-06 06:00:49 +00:00
lib [X86] Remove another weird scalar sqrt/rcp/rsqrt pattern. 2016-12-06 08:08:12 +00:00
projects [CMake] Correct configuration order of the sub-projects based on ther dependancies 2016-10-09 20:38:29 +00:00
resources
runtimes [CMake] Make the runtimes directory work with bootstrap builds 2016-10-19 21:50:25 +00:00
test [X86] Remove another weird scalar sqrt/rcp/rsqrt pattern. 2016-12-06 08:08:12 +00:00
tools [ObjectYAML] First bit of support for encoding DWARF in MachO 2016-12-06 06:00:49 +00:00
unittests Refactor TargetParserTests. 2016-12-06 02:22:08 +00:00
utils Summary: Currently there is no way to disable deprecated warning from asm like this 2016-12-05 23:55:13 +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 Code editor files 2016-09-02 22:54:26 +00:00
CMakeLists.txt [CMake] Cleanup TableGen include flags 2016-12-06 04:45:11 +00:00
CODE_OWNERS.TXT CODE_OWNERS: Take ownership of IR Linker as discussed on llvm-dev 2016-12-02 14:06:53 +00:00
configure
CREDITS.TXT Test Commit, removing a blank line in CREDITS.TXT 2016-11-24 15:40:19 +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 Test commit, deleted empty line at the end of README.txt 2016-11-07 18:31:21 +00:00
RELEASE_TESTERS.TXT

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.