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
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llvm	Add an efficient merge operation to LiveInterval and use it to avoid	2012-07-10 05:16:17 +00:00
llvm-c	Move llvm/Support/IRBuilder.h -> llvm/IRBuilder.h	2012-06-29 12:38:19 +00:00