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Commit f08b003b authored by Evan Cheng's avatar Evan Cheng
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Simplify the coalescer (finally!) by making LiveIntervals::processImplicitDefs... 

Simplify the coalescer (finally!) by making LiveIntervals::processImplicitDefs a little more aggressive and teaching liveintervals to make use of isUndef marker on MachineOperands.

llvm-svn: 76223
parent 97190a2c
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