Jakob Stoklund Olesen cf5ec4b4cd When RemoveCopyByCommutingDef is creating additional identity copies, just use
LiveInterval::MergeValueNumberInto instead of trying to extend LiveRanges and
getting it wrong.

This fixed PR8249 where a valno with a multi-segment live range was defined by
an identity copy created by RemoveCopyByCommutingDef. Some of the live
segments disappeared.

llvm-svn: 115385
2010-10-01 23:52:25 +00:00
2010-10-01 22:45:00 +00:00
2010-10-01 21:20:39 +00:00
2010-01-09 18:40:31 +00:00
2010-08-15 07:07:12 +00:00
2010-09-29 17:39:29 +00:00

\Low Level Virtual Machine (LLVM)
================================

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