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LLVM backend for 6502
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3bb4657488
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Chris Lattner 3bb4657488 Don't attempt to split subloops out of a loop with a huge number of backedges. 
Not only will this take huge amounts of compile time, the resultant loop nests
won't be useful for optimization.  This reduces loopsimplify time on
Transforms/LoopSimplify/2006-08-11-LoopSimplifyLongTime.ll from ~32s to ~0.4s
with a debug build of llvm on a 2.7Ghz G5.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@29647 91177308-0d34-0410-b5e6-96231b3b80d8
2006-08-12 05:25:00 +00:00
autoconf Recover the lost diff between 1.5 and 1.6. 2006-08-09 05:38:51 +00:00
docs Added information for the new nightly tester. 2006-08-11 23:27:02 +00:00
examples WriteBytecodeToFile actually can't throw. 2006-07-28 22:08:23 +00:00
include/llvm Track # nodes in a CSEMap. 2006-08-12 01:07:51 +00:00
lib Don't attempt to split subloops out of a loop with a huge number of backedges. 2006-08-12 05:25:00 +00:00
projects For PR780: 2006-08-07 23:12:15 +00:00
runtime Describe and date modifications we made per LGPL requirements. 2006-08-08 14:47:54 +00:00
test New testcase, this used to take hours to loopsimplify. 2006-08-12 05:23:27 +00:00
tools Don't print double newline for --src-root and --obj-root as it tends to 2006-08-11 21:50:24 +00:00
utils Lexer.cpp is a generated file both in lib/AsmParser and projects/Stacker 2006-08-11 23:58:58 +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
configure Recover the lost diff between 1.221 and 1.222. 2006-08-09 05:40:14 +00:00
CREDITS.TXT Update credits and fix sorting issue. 2006-08-09 04:18:09 +00:00
LICENSE.TXT Changing domain name 2006-04-20 05:51:53 +00:00
llvm.spec For PR723: 2006-04-07 16:07:37 +00:00
llvm.spec.in For PR723: 2006-04-07 16:07:37 +00:00
Makefile Revamp this to use filter-out, which makes the logic simpler and not nested. 2006-07-26 19:10:34 +00:00
Makefile.common
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 PR780: 2006-08-07 23:12:15 +00:00
README.txt

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
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