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LLVM backend for 6502
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a54b7cbd45
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Reid Spencer a54b7cbd45 For PR1064: 
Implement the arbitrary bit-width integer feature. The feature allows
integers of any bitwidth (up to 64) to be defined instead of just 1, 8,
16, 32, and 64 bit integers.

This change does several things:
1. Introduces a new Derived Type, IntegerType, to represent the number of
   bits in an integer. The Type classes SubclassData field is used to
   store the number of bits. This allows 2^23 bits in an integer type.
2. Removes the five integer Type::TypeID values for the 1, 8, 16, 32 and
   64-bit integers. These are replaced with just IntegerType which is not
   a primitive any more.
3. Adjust the rest of LLVM to account for this change.

Note that while this incremental change lays the foundation for arbitrary
bit-width integers, LLVM has not yet been converted to actually deal with
them in any significant way. Most optimization passes, for example, will
still only deal with the byte-width integer types.  Future increments
will rectify this situation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33113 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-12 07:05:14 +00:00
autoconf Fix a configure warning noticed by Duncan Sands. 2007-01-03 20:59:52 +00:00
docs Update for changes in the IR. The ConstantIntegral, ConstantBool, and 2007-01-12 03:36:33 +00:00
examples add some casts to support a change in the getOrInsertFunction interface 2007-01-07 07:40:09 +00:00
include For PR1064: 2007-01-12 07:05:14 +00:00
lib For PR1064: 2007-01-12 07:05:14 +00:00
projects relax type 2007-01-07 08:39:27 +00:00
runtime the old trace values pass has been removed, remove its runtime library. 2007-01-07 18:13:48 +00:00
test New predicate simplifier! 2007-01-11 02:32:38 +00:00
tools For PR1064: 2007-01-12 07:05:14 +00:00
utils For PR1064: 2007-01-12 07:05:14 +00:00
win32 Unbreak VC++ build. 2007-01-08 20:17:17 +00:00
Xcode Try again. 2006-11-05 21:21:20 +00:00
.cvsignore Add llvm.spec, a generated file. 2006-10-18 19:23:56 +00:00
configure Add a new variable, LLVMGCCLIBEXEC to get the libexec directory where the 2006-12-21 22:55:41 +00:00
CREDITS.TXT Testing commit, and adding an entry to CREDITS.TXT 2007-01-08 03:10:00 +00:00
LICENSE.TXT burg is gone 2006-09-11 17:28:11 +00:00
llvm.spec.in Minor technical correction in documentation. 2006-08-21 01:58:57 +00:00
Makefile Undo removal of the runtime libraries. While this may have been a bit 2006-11-17 03:32:33 +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 Add a new variable, LLVMGCCLIBEXEC to get the libexec directory where the 2006-12-21 22:55:41 +00:00
Makefile.rules Don't remove the find_rule label from FLEX output. It is needed by some 2007-01-11 21:40:25 +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.