Benjamin Kramer ff18310274 Add a basic verifier for SCEV's backedge taken counts.
Enabled with -verify-scev. This could be extended significantly but hopefully
catches the common cases now. Note that it's not enabled by default in any
configuration because the way it tries to distinguish SCEVs is still fragile and
may produce false positives. Also the test-suite isn't clean yet, one example
is that it fails if a pass drops an NSW bit but it's still present in SCEV's
cached. Cleaning up all those cases will take some time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166786 91177308-0d34-0410-b5e6-96231b3b80d8
2012-10-26 17:31:32 +00:00
2012-10-09 23:48:34 +00:00
2012-10-08 16:40:38 +00:00
2012-07-11 17:34:12 +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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