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LLVM backend for 6502
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Nate Begeman d7c4a4a6c0 Necessary changes to codegen cttz efficiently on PowerPC 
1. Teach LegalizeDAG how to better legalize CTTZ if the target doesn't have
   CTPOP, but does have CTLZ
2. Teach PPC32 how to do sub x, const -> add x, -const for valid consts
3. Teach PPC32 how to do and (xor a, -1) b -> andc b, a
4. Teach PPC32 that ISD::CTLZ -> PPC::CNTLZW


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21880 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-11 23:43:56 +00:00
autoconf Build the `Skeleton' target when building "all" targets 2005-04-22 18:00:34 +00:00
docs update this to reflect the new selection daggy world 2005-05-11 03:53:53 +00:00
examples Don't forget these are calls 2005-05-06 06:21:59 +00:00
include/llvm new method 2005-05-11 18:56:45 +00:00
lib Necessary changes to codegen cttz efficiently on PowerPC 2005-05-11 23:43:56 +00:00
projects WHILE does not "pop" a value, it "examines" to top of stack. Make this 2005-05-04 15:33:48 +00:00
runtime Remove trailing whitespace 2005-04-21 23:48:37 +00:00
test Regression test for PR#563. 2005-05-11 21:47:35 +00:00
tools If loopextract breaks the program provide output so that we can repro the 2005-05-08 21:54:56 +00:00
utils Hilight tail 2005-05-06 06:07:34 +00:00
win32 Add SimplyLibCalls.cpp to VC++ build 2005-04-26 02:57:49 +00:00
.cvsignore Ignore the autom4te.cache directoy. 2004-12-24 15:11:23 +00:00
configure Build the `Skeleton' target when building "all" targets 2005-04-22 18:00:34 +00:00
CREDITS.TXT Update my info 2005-05-08 01:07:48 +00:00
LICENSE.TXT Another year, another copyright update. 2005-01-08 19:10:44 +00:00
llvm.spec
llvm.spec.in
Makefile Remove the check target. Its now in Makefile.rules 2004-12-06 05:35:00 +00:00
Makefile.common Update comments to reflect new variable names. Patch contributed by 2005-02-14 16:02:19 +00:00
Makefile.config.in Two changes: 2005-04-22 17:14:14 +00:00
Makefile.rules * Remove extraneous spaces 2005-03-11 04:15:18 +00:00
README.txt Make the text of this file a little more useful. 2004-09-02 22:49:27 +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,
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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
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