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Author SHA1 Message Date
Krzysztof Parzyszek e16ce15687 [Hexagon] Mark dead defs as <dead> in expand-condsets 
The code in updateDeadFlags removed unnecessary <dead> flags, but there
can be cases where such a flag is not set, and yet a register has become
dead. For example, if a mux with identical inputs is replaced with a COPY,
the predicate register may no longer be used after that.

llvm-svn: 297032
 2017-03-06 17:09:06 +00:00