Quentin Colombet 26dab3a485 [ImplicitNullChecks] Account for implicit-defs as well when updating the liveness. ...

The replaced load may have implicit-defs and those defs may be used
in the block of the original load. Make sure to update the liveness
accordingly.

This is a generalization of r267817.

llvm-svn: 268412

2016-05-03 18:09:06 +00:00

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