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LLVM backend for 6502
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Andrea Di Biagio 3e5582cc15 [X86] Add target combine rule to select ADDSUB instructions from a build_vector 
This patch teaches the backend how to combine a build_vector that implements
an 'addsub' between packed float vectors into a sequence of vector add
and vector sub followed by a VSELECT.

The new VSELECT is expected to be lowered into a BLENDI.
At ISel stage, the sequence 'vector add + vector sub + BLENDI' is
pattern-matched against ISel patterns added at r211427 to select
'addsub' instructions.
Added three more ISel patterns for ADDSUB.

Added test sse3-avx-addsub-2.ll to verify that we correctly emit 'addsub'
instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211679 91177308-0d34-0410-b5e6-96231b3b80d8
2014-06-25 10:02:21 +00:00
autoconf Remove path_tclsh.m4. 2014-06-02 12:54:32 +00:00
bindings [OCaml] Unbreak Llvm_target.TargetMachine.set_verbose_asm 2014-06-09 17:34:34 +00:00
cmake Remove clang-specific libxml2 check from CMake 2014-06-06 05:08:42 +00:00
docs Revert r211287, "Remove support for LLVM runtime multi-threading." 2014-06-24 13:36:31 +00:00
examples Try to fix the msvc build. 2014-04-29 23:37:02 +00:00
include Move some trivial methods up to MCStreamer. 2014-06-25 00:27:53 +00:00
lib [X86] Add target combine rule to select ADDSUB instructions from a build_vector 2014-06-25 10:02:21 +00:00
projects Remove projects/sample. 2014-03-12 22:40:22 +00:00
test [X86] Add target combine rule to select ADDSUB instructions from a build_vector 2014-06-25 10:02:21 +00:00
tools Fix unresolved symbols when loading gold plugin 2014-06-25 08:04:58 +00:00
unittests Revert r211287, "Remove support for LLVM runtime multi-threading." 2014-06-24 13:36:31 +00:00
utils Use SourceMgr::getMemoryBuffer() in a couple of places 2014-06-25 00:41:15 +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 Delete utils/FileUpdate. 2014-06-23 17:58:39 +00:00
CODE_OWNERS.TXT ARM Linux support 2014-04-02 23:03:28 +00:00
configure Touch configure to force clang's config.h.in reconfiguration on the build servers 2014-06-06 10:36:38 +00:00
CREDITS.TXT Update Credits. 2014-05-29 19:59:58 +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 [Make] Fix dependencies for td.expanded 2014-06-20 19:00:41 +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,
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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
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If you're writing a package for LLVM, see docs/Packaging.rst for our
suggestions.