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LLVM backend for 6502
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Chris Lattner f7da2c7b0c Take advantage of the recent improvements to the liveintervals set (tracking 
instructions which define each value#) to simplify and improve the coallescer.
In particular, this patch:

1. Implements iterative coallescing.
2. Reverts an unsafe hack from handlePhysRegDef, superceeding it with a
   better solution.
3. Implements PR865, "coallescing" away the second copy in code like:

   A = B
   ...
   B = A

This also includes changes to symbolically print registers in intervals
when possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29862 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-24 22:43:55 +00:00
autoconf For PR738: 2006-08-24 22:41:20 +00:00
docs Added link to ABI documentation, sent by Rafael Espindola. 2006-08-22 21:56:43 +00:00
examples WriteBytecodeToFile actually can't throw. 2006-07-28 22:08:23 +00:00
include/llvm Take advantage of the recent improvements to the liveintervals set (tracking 2006-08-24 22:43:55 +00:00
lib Take advantage of the recent improvements to the liveintervals set (tracking 2006-08-24 22:43:55 +00:00
projects For PR797: 2006-08-18 09:07:54 +00:00
runtime Describe and date modifications we made per LGPL requirements. 2006-08-08 14:47:54 +00:00
test Implement unrolling of multiblock loops. This significantly improves the 2006-08-24 21:28:19 +00:00
tools Make sure that both non-asm file types are marked as experimental 2006-08-23 21:29:52 +00:00
utils Corrected an error that was introduced yesterday that caused the GCC 2006-08-22 18:11:19 +00:00
win32 Keep Visual Studio happy. 2006-05-03 00:28:50 +00:00
Xcode Bring the Xcode project up to date. 2006-07-13 22:17:58 +00:00
.cvsignore Ignore stuff built by "make dist". 2006-04-07 15:55:18 +00:00
configure For PR738: 2006-08-24 22:41:20 +00:00
CREDITS.TXT Added my home web page. 2006-08-16 21:18:56 +00:00
LICENSE.TXT Changing domain name 2006-04-20 05:51:53 +00:00
llvm.spec.in Minor technical correction in documentation. 2006-08-21 01:58:57 +00:00
Makefile Add .PHONY targets for building source and binary RPM packages. You can 2006-08-16 00:43:50 +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 Make the name of the project consistent with that specified in the 2006-08-07 23:23:39 +00:00
Makefile.rules For PR738: 2006-08-24 22:41:20 +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,
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.