Dan Gohman 7375fbcbf2 Fix a bug in LSR's dead-PHI cleanup. If a PHI has a def-use chain that
leads into a cycle involving a different PHI, LSR got stuck running
around that cycle looking for the original PHI. To avoid this, keep
track of visited PHIs and stop searching if we see one more than once.
This fixes PR2570.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53879 91177308-0d34-0410-b5e6-96231b3b80d8
2008-07-21 21:45:02 +00:00
2008-07-13 21:27:36 +00:00
2008-01-24 05:16:36 +00:00
2007-08-03 05:43:35 +00:00
2008-07-20 12:04:49 +00:00
2008-05-10 08:32:32 +00:00
2007-07-13 09:48:29 +00:00
2008-07-17 19:46:54 +00:00

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.



Description
LLVM backend for 6502
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