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LLVM backend for 6502
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3e5affd263
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Reid Spencer 3e5affd263 For PR1256: 
Make Signedness information pervasive throughout all types and values.
There is no easy way to get around this. Because the GEP instruction can
index through an arbitrarily complex value structure, it is necessary to
keep track of signedness information throughout that structure. This change
makes Signedness a full class, capable of representing Signedness in
arbitrarily shaped types. The class is then used throughout llvm-upgrade to
track signedness and differentiate between globals, locals, and functions
based on their signedness.

For PR1243:
This patch also removes bogus warnings about renaming internal globals. It
now only emits such warnings when renaming non-internal globals because
they may affect linkage.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35234 91177308-0d34-0410-b5e6-96231b3b80d8
2007-03-21 17:14:36 +00:00
autoconf Add possibility to set memory limit for binaries run via libSystem. This 2007-02-16 19:11:07 +00:00
docs Document LoopPass. 2007-03-19 22:21:25 +00:00
examples Revert last patch. The examples build now. 2007-03-06 17:26:14 +00:00
include do not share old induction variables when this would result in invalid 2007-03-20 21:54:54 +00:00
lib Protect R31's frame offset from being used by callee-saved registers, when R31 2007-03-21 16:44:14 +00:00
projects avoid collision with /usr/bin/sample if this ever gets installed. 2007-02-18 03:03:41 +00:00
runtime crtend is only for llvm-gcc3, remove it. 2007-02-23 19:34:09 +00:00
test bugfix: When the source register of CALL_NOLINK was LR, the following code was emitted: 2007-03-20 17:57:23 +00:00
tools For PR1256: 2007-03-21 17:14:36 +00:00
utils Recognize target instruction flag 'isReMaterializable'. 2007-03-19 06:20:37 +00:00
win32 Unbreak VC++ build. 2007-03-05 00:00:42 +00:00
Xcode Update project 2007-01-29 18:45:08 +00:00
.cvsignore Add llvm.spec, a generated file. 2006-10-18 19:23:56 +00:00
configure Regenerate for getrlimit/setrlimit. 2007-02-16 19:17:20 +00:00
CREDITS.TXT Credit self for Ada front-end. 2007-03-05 09:21:11 +00:00
LICENSE.TXT remove these. 2007-02-25 02:28:21 +00:00
llvm.spec.in Minor technical correction in documentation. 2006-08-21 01:58:57 +00:00
Makefile revert r1.68. This breaks 'make install' without doing 'make' first, but 2007-02-21 06:23:20 +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 For PR739: 2007-01-17 20:24:45 +00:00
Makefile.rules correct dependency 2007-02-28 05:10:40 +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.