483       Variable *T64 = makeReg(IceType_i64, RegNum);  in _sandbox_mem_reference()  local
484       auto *Movzx = _movzx(T64, T);  in _sandbox_mem_reference()
492       T = T64;  in _sandbox_mem_reference()
626     Variable *T64 = makeReg(IceType_i64);  in lowerIndirectJump()  local
635     _movzx(T64, T);  in lowerIndirectJump()
636     _add(T64, r15);  in lowerIndirectJump()
637     JumpTarget = T64;  in lowerIndirectJump()
690         Variable *T64 = makeReg(IceType_i64);  in emitCallToTarget()  local
700         _movzx(T64, T);  in emitCallToTarget()
701         _add(T64, r15);  in emitCallToTarget()
702         CallTarget = T64;  in emitCallToTarget()