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LLVM backend for 6502
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Paul Redmond 6da2e22dff Transform (x&C)>V into (x&C)!=0 where possible 
When the least bit of C is greater than V, (x&C) must be greater than V
if it is not zero, so the comparison can be simplified.

Although this was suggested in Target/X86/README.txt, it benefits any
architecture with a directly testable form of AND.

Patch by Kevin Schoedel


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170576 91177308-0d34-0410-b5e6-96231b3b80d8
2012-12-19 19:47:13 +00:00
autoconf Add options to disable building of ARCMT, Rewriter and Static Analyzer 2012-12-13 16:07:19 +00:00
bindings [python] Add markup option to disassembler 2012-12-01 21:57:30 +00:00
cmake CMake: factor out a function that returns the expected directory for unit test 2012-12-19 12:30:33 +00:00
docs doc: add subsections. 2012-12-19 18:04:44 +00:00
examples Sort the #include lines of the examples/... tree. 2012-12-04 10:16:57 +00:00
include Add an MF argument to MachineInstr::addOperand(). 2012-12-19 19:19:01 +00:00
lib Transform (x&C)>V into (x&C)!=0 where possible 2012-12-19 19:47:13 +00:00
projects Clean up the sample include orderings, not that it really matters... 2012-12-04 10:46:21 +00:00
runtime
test Transform (x&C)>V into (x&C)!=0 where possible 2012-12-19 19:47:13 +00:00
tools Revert 170545 while I debug the ppc failures. 2012-12-19 14:48:05 +00:00
unittests Add an assertion for a likely ilist::splice() contract violation. 2012-12-18 19:28:37 +00:00
utils Rename the 'Attributes' class to 'Attribute'. It's going to represent a single attribute in the future. 2012-12-19 07:18:57 +00:00
.arcconfig
.gitignore
CMakeLists.txt Fix spelling 2012-12-13 15:25:07 +00:00
CODE_OWNERS.TXT Taking ownership of indvars/lsr. 2012-12-05 23:32:44 +00:00
configure Add options to disable building of ARCMT, Rewriter and Static Analyzer 2012-12-13 16:07:19 +00:00
CREDITS.TXT
LICENSE.TXT
llvm.spec.in
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile
Makefile.common Makefile.common: Update a description, s/Source/SOURCES/ , according to MakefileGuide.html#control-variables . 2012-12-07 01:43:23 +00:00
Makefile.config.in Add options to disable building of ARCMT, Rewriter and Static Analyzer 2012-12-13 16:07:19 +00:00
Makefile.rules
README.txt

README.txt 

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

This directory and its subdirectories contain source code for the Low Level
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optimizers, and runtime environments.

LLVM is open source software. You may freely distribute it under the terms of
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Please see the HTML documentation provided in docs/index.html for further
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