// RUN: FileCheck -input-file %s %s

op1 r1
op2 r1, r2
; CHECK:        op1 [[REG:r[0-9]]]
; CHECK-NEXT:   op2 [[REG]]

op3 r16, r18, r21
op4 r30, r18, r21
; CHECK:        op3 {{r[0-9]+}}, [[REGa:r[0-9]+]], [[REGb:r[0-9]+]]
; CHECK-NEXT:   op4 {{r[0-9]+}}, [[REGa]], [[REGb]]