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Author SHA1 Message Date
Jonas Paulsson 4fd156261e [SystemZ] Make copyPhysReg() add impl-use operands of super reg. 
When a 128 bit COPY is lowered into two instructions, an impl-use operand of
the super-reg should be added to each new instruction in case one of the
sub-regs is undefined.

Review: Ulrich Weigand
llvm-svn: 302146
 2017-05-04 13:33:30 +00:00