Chandler Carruth e585e75612 Add an efficient merge operation to LiveInterval and use it to avoid
quadratic behavior when performing pathological merges. Fixes the core
element of PR12652.

There is only one user of addRangeFrom left: join. I'm hoping to
refactor further in a future patch and have join use this merge
operation as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159982 91177308-0d34-0410-b5e6-96231b3b80d8
2012-07-10 05:16:17 +00:00
2012-06-28 20:35:00 +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.

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LLVM backend for 6502
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