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LLVM backend for 6502
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Simon Pilgrim a6943fff90 [X86][SSE] pslldq/psrldq byte shifts/rotation for SSE2 
This patch builds on http://reviews.llvm.org/D5598 to perform byte rotation shuffles (lowerVectorShuffleAsByteRotate) on pre-SSSE3 (palignr) targets - pre-SSSE3 is only enabled on i8 and i16 vector targets where it is a more definite performance gain.

I've also added a separate byte shift shuffle (lowerVectorShuffleAsByteShift) that makes use of the ability of the SLLDQ/SRLDQ instructions to implicitly shift in zero bytes to avoid the need to create a zero register if we had used palignr.

Differential Revision: http://reviews.llvm.org/D5699



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@222340 91177308-0d34-0410-b5e6-96231b3b80d8
2014-11-19 10:06:49 +00:00
autoconf Expose LLVM version string via macro in llvm-config.h, and modify Go bindings 2014-11-19 03:34:17 +00:00
bindings Expose LLVM version string via macro in llvm-config.h, and modify Go bindings 2014-11-19 03:34:17 +00:00
cmake Add support for LLVM_USE_SANITIZER=Thread 2014-11-18 21:23:38 +00:00
docs docs: Modernize some examples in WritingAnLLVMPass 2014-11-18 05:22:39 +00:00
examples [CMake] llvm/examples: Update libdeps for unoptimized builds. 2014-10-31 15:27:16 +00:00
include AliasSetTracker: UnknownInsts should contribute to the refcount 2014-11-19 09:41:05 +00:00
lib [X86][SSE] pslldq/psrldq byte shifts/rotation for SSE2 2014-11-19 10:06:49 +00:00
projects
test [X86][SSE] pslldq/psrldq byte shifts/rotation for SSE2 2014-11-19 10:06:49 +00:00
tools Remove StringMap::GetOrCreateValue in favor of StringMap::insert 2014-11-19 05:49:42 +00:00
unittests Remove StringMap::GetOrCreateValue in favor of StringMap::insert 2014-11-19 05:49:42 +00:00
utils Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool> 2014-11-19 07:49:26 +00:00
.arcconfig
.clang-format
.clang-tidy Enable display of compiler diagnostics in clang-tidy by default. 2014-10-29 17:29:38 +00:00
.gitignore Initial version of Go bindings. 2014-10-16 22:48:02 +00:00
CMakeLists.txt CMake: Use the new USES_TERMINAL option for test suite targets when available. 2014-11-17 22:16:15 +00:00
CODE_OWNERS.TXT Add Tom Stellard's role as 3.5 release manager. 2014-09-12 08:07:31 +00:00
configure Expose LLVM version string via macro in llvm-config.h, and modify Go bindings 2014-11-19 03:34:17 +00:00
CREDITS.TXT Rise from the dead and update personal info 2014-08-25 17:51:04 +00:00
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt Remove the very substantial, largely unmaintained legacy PGO 2013-10-02 15:42:23 +00:00
Makefile
Makefile.common
Makefile.config.in Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
Makefile.rules Add a check for misbehaving -Wcomment from gcc-4.7 and add 2014-11-05 00:35:15 +00:00
README.txt

README.txt 

Low Level Virtual Machine (LLVM)
================================

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