Andrew Trick 13d31e0368 Avoid exponential recursion in SCEV getConstantEvolvingPHI and EvaluateExpression.
Note to compiler writers: never recurse on multiple instruction
operands without memoization.
Fixes rdar://10187945. Was taking 45s, now taking 5ms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@141161 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05 03:25:31 +00:00
2011-10-04 19:38:16 +00:00
2011-09-24 01:37:58 +00:00
2011-09-21 03:34:31 +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
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Description
LLVM backend for 6502
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