Jakob Stoklund Olesen dffb051c21 Simplify RegScavenger::forward a bit more.
Verify that early clobber registers and their aliases are not used.

All changes to RegsAvailable are now done as a transaction so the order of
operands makes no difference.

The included test case is from PR4686. It has behaviour that was dependent on the order of operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78465 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-08 13:18:47 +00:00
2009-06-24 05:29:56 +00:00
2009-03-02 03:46:48 +00:00
2009-08-08 11:26:50 +00:00
2009-07-24 00:30:09 +00:00
2009-08-06 21:54:23 +00:00
2009-08-01 22:54:39 +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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