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LLVM backend for 6502
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2860b7ea3a
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Jakob Stoklund Olesen 2860b7ea3a Fold predicable instructions into MOVCC / t2MOVCC. 
The ARM select instructions are just predicated moves. If the select is
the only use of an operand, the instruction defining the operand can be
predicated instead, saving one instruction and decreasing register
pressure.

This implementation can turn AND/ORR/EOR instructions into their
corresponding ANDCC/ORRCC/EORCC variants. Ideally, we should be able to
predicate any instruction, but we don't yet support predicated
instructions in SSA form.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161994 91177308-0d34-0410-b5e6-96231b3b80d8
2012-08-15 22:16:39 +00:00
autoconf [configure] Add a --enable-keep-symbols configure flag. 2012-08-14 18:14:20 +00:00
bindings Remove tabs. 2012-07-19 00:23:13 +00:00
cmake revert my previous patch 2012-08-08 18:04:45 +00:00
docs Remove references to compression in llvm-ar. It has been a long time since we 2012-08-10 01:57:52 +00:00
examples Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h 2012-06-29 12:38:19 +00:00
include Add a CoveringSubRegIndices field to SubRegIndex records. 2012-08-15 20:15:48 +00:00
lib Fold predicable instructions into MOVCC / t2MOVCC. 2012-08-15 22:16:39 +00:00
projects Fix a typo (the the => the) 2012-07-23 08:51:15 +00:00
runtime Free the allocated filename. Found by clang static analyzer. 2012-06-15 09:11:47 +00:00
test Fold predicable instructions into MOVCC / t2MOVCC. 2012-08-15 22:16:39 +00:00
tools Remove references to compression in llvm-ar. It has been a long time since we 2012-08-10 01:57:52 +00:00
unittests Properly test the LLVM_USE_RVALUE_REFERENCES macro. 2012-08-15 19:21:42 +00:00
utils Add a CoveringSubRegIndices field to SubRegIndex records. 2012-08-15 20:15:48 +00:00
.gitignore Add tools/lld to .gitignore. 2012-05-02 21:25:32 +00:00
CMakeLists.txt Support for experimental targets 2012-08-09 01:13:59 +00:00
CODE_OWNERS.TXT Add the list of code owners to the top level of the LLVM source tree to 2012-07-26 08:04:09 +00:00
configure Update configure. 2012-08-14 18:14:22 +00:00
CREDITS.TXT Alphabetize. 2012-06-19 23:47:58 +00:00
LICENSE.TXT Add YAML parser to Support. 2012-04-03 23:09:22 +00:00
llvm.spec.in Tidy up. s/Low Level Virtual Machine/LLVM/. 2012-01-25 22:00:23 +00:00
LLVMBuild.txt LLVMBuild: Introduce a common section which currently has a list of the 2011-12-12 22:45:54 +00:00
Makefile Fix the make update target to work even when sub repo repositories are ignored. 2012-08-14 18:33:50 +00:00
Makefile.common [docs] Remove unsupported references to ExtraSource variable. 2012-05-15 21:32:27 +00:00
Makefile.config.in [configure] Add a --enable-keep-symbols configure flag. 2012-08-14 18:14:20 +00:00
Makefile.rules Add a configure flag for enabling -Werror on the command line 2012-08-03 19:58:20 +00:00
README.txt test commit 2012-07-11 17:34:12 +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 HTML documentation provided in docs/index.html for further
assistance with LLVM.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.