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Tim Northover 0eba2eb04d DeadArgElim: arguments affect all returned sub-values by default.
Unless we meet an insertvalue on a path from some value to a return, that value
will be live if *any* of the return's components are live, so all of those
components must be added to the MaybeLiveUses.

Previously we were deleting arguments if sub-value 0 turned out to be dead.

llvm-svn: 228731
2015-02-10 19:49:18 +00:00
..
2015-01-14 22:27:36 +00:00
2014-02-16 07:31:05 +00:00