When joining intervals, join intervals in deeply nested loops first. This
authorChris Lattner <sabre@nondot.org>
Mon, 19 Jul 2004 14:40:29 +0000 (14:40 +0000)
committerChris Lattner <sabre@nondot.org>
Mon, 19 Jul 2004 14:40:29 +0000 (14:40 +0000)
commitcc0d156f7bca0811aade0a95b0e7419176383c90
treedc7b1efc807e7b63ee1809eca6cda7710b15ed5a
parent1c5c0444f1326b58cf05015651f36f2b04ca322d
When joining intervals, join intervals in deeply nested loops first.  This
is a simple change, but seems to improve code a little.  For example, on
256.bzip2, we went from 75.0s -> 73.33s (2% speedup).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@15004 91177308-0d34-0410-b5e6-96231b3b80d8
lib/CodeGen/LiveIntervalAnalysis.cpp