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LLVM backend for 6502
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Evan Cheng ae3ecf9603 Look for SSE and instructions of this form: (and x, (build_vector c1,c2,c3,c4)). 
If there exists a use of a build_vector that's the bitwise complement of the mask,
then transform the node to
(and (xor x, (build_vector -1,-1,-1,-1)), (build_vector ~c1,~c2,~c3,~c4)).

Since this transformation is only useful when 1) the given build_vector will
become a load from constpool, and 2) (and (xor x -1), y) matches to a single
instruction, I decided this is appropriate as a x86 specific transformation.
rdar://7323335


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96389 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-16 21:09:44 +00:00
autoconf Make --disable-libffi work on systems with libffi installed. Also 2010-02-09 23:03:44 +00:00
bindings Fix some ocaml documentation 2010-02-16 03:45:17 +00:00
cmake Update CMake LibDeps 2010-01-22 18:14:14 +00:00
docs Add support for emitting non-temporal stores for DAGs marked 2010-02-16 20:50:18 +00:00
examples Make Kaleidoscope not link against the interpreter, since that didn't 2010-02-11 19:15:20 +00:00
include Rename SuccessorNumber to GetSuccessorNumber. 2010-02-16 21:06:42 +00:00
lib Look for SSE and instructions of this form: (and x, (build_vector c1,c2,c3,c4)). 2010-02-16 21:09:44 +00:00
projects CMake: Fixed syntax in conditional. 2010-02-15 15:17:05 +00:00
runtime remove the random sampling framework, which is not maintained anymore. 2010-01-02 20:07:03 +00:00
test Look for SSE and instructions of this form: (and x, (build_vector c1,c2,c3,c4)). 2010-02-16 21:09:44 +00:00
tools There are two ways of checking for a given type, for example isa<PointerType>(T) 2010-02-16 11:11:14 +00:00
unittests Teach the verifier to check the condition on a branch and ensure that it has 2010-02-15 22:09:09 +00:00
utils simplify this code. In the new world order there is no 2010-02-16 19:19:58 +00:00
website
Xcode Remove the IA-64 backend. 2009-07-24 00:30:09 +00:00
build-for-llvm-top.sh
CMakeLists.txt CMake: Add MCParser directory. 2010-01-22 02:04:33 +00:00
configure Make --disable-libffi work on systems with libffi installed. Also 2010-02-09 23:03:44 +00:00
CREDITS.TXT Add myself to the blame list. 2009-08-20 15:20:15 +00:00
LICENSE.TXT 2010 is upon us. 2010-01-09 18:40:31 +00:00
llvm.spec.in
Makefile For 'install-clang' target, also traverse tools/clang/lib/Runtime. 2010-01-20 00:43:07 +00:00
Makefile.common
Makefile.config.in Fix typos. Thanks to John Tytgat for noticing it! 2009-12-07 00:27:35 +00:00
Makefile.rules Added a custom TableGen backend to support the 2010-01-29 00:21:04 +00:00
ModuleInfo.txt
README.txt Trim trailing spaces (aka, trigger rebuild). 2010-02-13 22:23:47 +00:00

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
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Please see the HTML documentation provided in docs/index.html for further
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