[Bug target/47440] Use LCM for vzeroupper insertion

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47440

Richard Guenther <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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   Target Milestone|4.7.1                       |---