Jakob Stoklund Olesen 8b560b8c48 Only check for PHI uses inside the current loop.
Hoisting a value that is used by a PHI in the loop will introduce a
copy because the live range is extended to cross the PHI.

The same applies to PHIs in exit blocks.

Also use this opportunity to make HasLoopPHIUse() non-recursive.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154454 91177308-0d34-0410-b5e6-96231b3b80d8
2012-04-11 00:00:26 +00:00
2012-04-03 23:09:22 +00:00
2012-04-03 23:09:22 +00:00
2012-03-12 21:12:59 +00:00
2012-04-03 23:09:22 +00:00
2012-03-20 13:12:38 +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.

If you're writing a package for LLVM, see docs/Packaging.html for our
suggestions.


Description
LLVM backend for 6502
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