llvm-6502

mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-11-02 07:11:49 +00:00

LLVM backend for 6502

Go to file

Andrea Di Biagio e54158504f [X86] Teach the DAGCombiner how to fold a OR of two shufflevector nodes. This patch teaches the DAGCombiner how to fold a binary OR between two shufflevector into a single shuffle vector when possible. The rules are: 1. fold (or (shuf A, V_0, MA), (shuf B, V_0, MB)) -> (shuf A, B, Mask1) 2. fold (or (shuf A, V_0, MA), (shuf B, V_0, MB)) -> (shuf B, A, Mask2) The DAGCombiner can take advantage of the fact that OR is commutative and compute two possible shuffle masks (Mask1 and Mask2) for the resulting shuffle node. Before folding a dag according to either rule 1 or 2, DAGCombiner verifies that the resulting shuffle mask is legal for the target. DAGCombiner would firstly try to fold according to 1.; If not possible then it will try to fold according to 2. If both Mask1 and Mask2 are illegal then we conservatively don't fold the OR instruction. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@203156 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-06 20:19:52 +00:00
autoconf	Now that we don't use libtool, we don't need to upgrade it :-)	2014-03-05 22:45:14 +00:00
bindings	[python-bindings] Remove some cruft that snuck in.	2014-02-23 04:43:26 +00:00
cmake	[CMake] add_llvm_target(): No need to include TABLEGEN_OUTPUT in source list.	2014-03-04 17:05:28 +00:00
docs	[LangRef] Improve llvm.mem.parallel_loop_access example	2014-03-05 13:36:04 +00:00
examples	Fix warnings about an variable only used in asserts.	2014-03-06 06:35:46 +00:00
include	Revert create_symbolic_link and both depending changes	2014-03-06 19:07:35 +00:00
lib	[X86] Teach the DAGCombiner how to fold a OR of two shufflevector nodes.	2014-03-06 20:19:52 +00:00
projects	Drop libtool from llvm.	2014-02-28 18:17:54 +00:00
test	[X86] Teach the DAGCombiner how to fold a OR of two shufflevector nodes.	2014-03-06 20:19:52 +00:00
tools	Fix warning about mismatched signs in comparison.	2014-03-06 20:16:24 +00:00
unittests	Replace OwningPtr<T> with std::unique_ptr<T>.	2014-03-06 05:51:42 +00:00
utils	AVX-512: Added rrk, rrkz, rmk, rmkz, rmbk, rmbkz versions of AVX512 FP packed instructions, added encoding tests for them.	2014-03-06 08:45:30 +00:00
.arcconfig
.clang-format	Test commit.	2014-03-02 13:08:46 +00:00
.gitignore	Added .DS_Store entry in .gitignore for ignoring .DS_Store files in the source	2014-01-25 15:15:16 +00:00
CMakeLists.txt	Cleaning up a bunch of pre-Visual C++ 2012 build hacks.	2014-03-04 09:23:33 +00:00
CODE_OWNERS.TXT	Add myself as owner for libc++	2014-02-18 14:03:17 +00:00
configure	Add patch level to llvm version in CMake and Autoconf	2014-03-03 15:22:00 +00:00
CREDITS.TXT	Fix documentation typos	2013-12-20 00:33:39 +00:00
LICENSE.TXT	Update the copyright credits -- Happy new year 2014!	2014-01-01 08:27:31 +00:00
llvm.spec.in
LLVMBuild.txt
Makefile	Provide CMake package modules in install tree	2014-02-09 16:37:02 +00:00
Makefile.common
Makefile.config.in	Add patch level to llvm version in CMake and Autoconf	2014-03-03 15:22:00 +00:00
Makefile.rules	Add patch level to llvm version in CMake and Autoconf	2014-03-03 15:22:00 +00:00
README.txt	Revert "Test commit to check e-mail address. Please discard this."	2013-10-04 10:59:13 +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.