// 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]]


// RUN: %ProtectFileCheckOutput \
// RUN: not FileCheck --check-prefixes INVALID-VARNAME --input-file %s %s 2>&1 \
// RUN:   | FileCheck --check-prefix INVALID-VARNAME-MSG --strict-whitespace %s

5
4
; INVALID-VARNAME: [[X:]]
; INVALID-VARNAME-NEXT: [[Y:]]
; INVALID-VARNAME-NEXT: [[X-Y]]
; INVALID-VARNAME-MSG: simple-var-capture.txt:[[#@LINE-1]]:27: error: invalid name in string variable use
; INVALID-VARNAME-MSG-NEXT: ; {{I}}NVALID-VARNAME-NEXT: {{\[\[X-Y\]\]}}
; INVALID-VARNAME-MSG-NEXT:    {{^}}                          ^{{$}}