Jakob Stoklund Olesen e9c59711d3 Replace a big gob of old coalescer logic with the new CoalescerPair class.
CoalescerPair can determine if a copy can be coalesced, and which register gets
merged away. The old logic in SimpleRegisterCoalescing had evolved into
something a bit too convoluted.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106701 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-24 00:12:39 +00:00
..
2010-06-16 19:39:45 +00:00
2010-06-17 17:43:14 +00:00
2010-06-23 21:30:27 +00:00
2010-06-18 01:49:17 +00:00
2010-06-23 19:50:39 +00:00