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LLVM backend for 6502
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Chris Lattner a958cbfe36 Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the 
trunc has multiple uses.  Codegen is not able to coalesce the subreg case 
correctly and so this leads to higher register pressure and spilling (see PR5997).

This speeds up 256.bzip2 from 8.60 -> 8.04s on my machine, ~7%.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93200 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-11 22:45:25 +00:00
autoconf Proper deduce z/System LLVM target from target triple when 2010-01-05 20:45:13 +00:00
bindings Fix another parallel make race condition. 2009-12-18 20:12:14 +00:00
cmake Update CMake LibDeps 2010-01-04 23:17:24 +00:00
docs Add top level section for named metadata. 2010-01-11 19:35:55 +00:00
examples fix PR5649 by making fib use the JIT instead of the interpreter, patch by Perry Lorier! 2009-12-01 01:56:27 +00:00
include Remove trailing white spaces in post dominators header file 2010-01-11 22:22:46 +00:00
lib Disable folding sext(trunc(x)) -> x (and other similar cast/cast cases) when the 2010-01-11 22:45:25 +00:00
projects Move DataTypes.h to include/llvm/System, update all users. This breaks the last 2009-10-26 01:35:46 +00:00
runtime remove the random sampling framework, which is not maintained anymore. 2010-01-02 20:07:03 +00:00
test Extend r93152 to work on OR r, r. If the source set bits are known not to overlap, then select as an ADD instead. 2010-01-11 22:03:29 +00:00
tools Reimplement getToken and SplitString as "StringRef helper functions" 2010-01-11 18:03:24 +00:00
unittests NamedMDNode is a collection MDNodes. 2010-01-05 20:41:31 +00:00
utils Reimplement getToken and SplitString as "StringRef helper functions" 2010-01-11 18:03:24 +00:00
website
Xcode
build-for-llvm-top.sh
CMakeLists.txt Fix CMake build for InstCombine changes 2010-01-04 21:58:55 +00:00
configure Regenerate 2010-01-05 20:45:43 +00:00
CREDITS.TXT
LICENSE.TXT 2010 is upon us. 2010-01-09 18:40:31 +00:00
llvm.spec.in
Makefile Update install-clang target for clang-cc removal. 2009-12-12 21:17:54 +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 Add the rest of the build system logic for optional target disassemblers 2009-11-25 04:46:58 +00:00
ModuleInfo.txt
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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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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