Dan Gohman a9db129730 Don't merge uses when they are targetting fixup sites with
different widths. In a use with a narrower fixup, formulae
may be wider than the fixup, in which case the high bits
aren't necessarily meaningful, so it isn't safe to reuse
them for uses with wider fixups.

This fixes PR7618, though the testcase is too large for a
reasonable regression test, since it heavily dependes on
hitting LSR's heuristics in a certain way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108455 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-15 20:24:58 +00:00
2010-07-14 22:38:02 +00:00
2010-07-15 07:49:30 +00:00
2010-02-23 15:11:17 +00:00
2010-04-16 13:32:55 +00:00
2010-07-15 18:45:27 +00:00
2007-08-03 05:43:35 +00:00
2010-02-23 19:15:24 +00:00
2010-01-09 18:40:31 +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
Readme
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