Jakob Stoklund Olesen fd338e9777 Allow Post-RA LICM to hoist reserved register reads. ...

When using register masks, registers like %rip are clobbered by the
register mask. LICM should still be able to hoist instructions reading
%rip from a loop containing calls.

llvm-svn: 150288

2012-02-11 00:44:19 +00:00

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