Dan Gohman ac31be1e06 Make UnreachableMachineBlockElim preserve MachineDominatorTree and ...

MachineLoopInfo.

llc now runs MachineLoopInfo and MachineDominatorTree only twice, instead
of three times.

llvm-svn: 77759

2009-08-01 00:34:30 +00:00

7.2 KiB

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