Chandler Carruth 3ce0f2a6de 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. llvm-svn: 159982		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