Jakob Stoklund Olesen 2f6531eb8c Properly handle reloading and spilling around partial redefines in ...

LocalRewriter.

This is a bit of a hack that adds an implicit use operand to model the
read-modify-write nature of a partial redef. Uses and defs are rewritten in
separate passes, and a single operand would never be processed twice.

<rdar://problem/8518892>

llvm-svn: 116210

2010-10-11 18:10:36 +00:00

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