Jakob Stoklund Olesen 76ad3debab Ensure all defs referring to a virtual register are marked dead by addRegisterDead(). ...

There can be multiple defs for a single virtual register when they are defining
sub-registers.

The missing <dead> flag was stopping the inline spiller from eliminating dead
code after rematerialization.

llvm-svn: 128888

2011-04-05 16:53:50 +00:00

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