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Chris Lattner 55149d7835 Fix a bug in the local spiller, where we could take code like this: 
store r12 -> [ss#2]
  R3 = load [ss#1]
  use R3
  R3 = load [ss#2]
  R4 = load [ss#1]

and turn it into this code:

  store R12 -> [ss#2]
  R3 = load [ss#1]
  use R3
  R3 = R12
  R4 = R3    <- oops!

The problem was that promoting R3 = load[ss#2] to a copy missed the fact that
the instruction invalidated R3 at that point.

llvm-svn: 23638
 		2005-10-05 18:30:19 +00:00
..
Xcode Added targets to speed up build of llc. 2005-09-09 17:50:20 +00:00
autoconf For PR619: 2005-08-24 10:43:10 +00:00
docs Update the discussion of TargetRegisterDesc 2005-09-30 17:46:55 +00:00
examples For PR616: 2005-08-24 10:07:20 +00:00
include/llvm add a helper class 2005-10-05 06:34:34 +00:00
lib Fix a bug in the local spiller, where we could take code like this: 2005-10-05 18:30:19 +00:00
projects Implement PR614: 2005-08-27 18:50:39 +00:00
runtime Remove trailing whitespace 2005-04-21 23:48:37 +00:00
test new testcase for PR635 2005-10-03 23:42:54 +00:00
tools Speed up isBytecodeLPath from 20s to .01s in common cases. This makes -native 2005-09-23 06:11:24 +00:00
utils put the right labels on the data 2005-10-02 21:51:38 +00:00
win32 Fix VC++ build errors. 2005-09-25 19:04:43 +00:00
.cvsignore Ignore the configure.out file generated by "make reconfigure" 2005-06-18 23:01:25 +00:00
CREDITS.TXT Add a note, people are responsible for requesting that they be added to the 2005-08-02 22:10:21 +00:00
LICENSE.TXT Remove extraneous colons after program names for consistency 2005-05-12 21:39:01 +00:00
Makefile For PR614: 2005-08-25 04:59:49 +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 Add some rules for building preprocessed files 2005-10-05 00:28:41 +00:00
README.txt Make the text of this file a little more useful. 2004-09-02 22:49:27 +00:00
configure For PR616: 2005-08-24 10:07:20 +00:00
llvm.spec Onward to LLVM-1.6 and beyond! 2005-05-18 20:23:20 +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.