; RUN: not FileCheck -check-prefix=DAGNOT -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=DAGNOT-ERROR %s
; RUN: not FileCheck -check-prefix=NOTDAG -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=NOTDAG-ERROR %s
; RUN: not FileCheck -check-prefix=NEXTNOT -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=NEXTNOT-ERROR %s
; RUN: not FileCheck -check-prefix=NOTNEXT -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=NOTNEXT-ERROR %s
; RUN: not FileCheck -check-prefix=SAMENOT -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=SAMENOT-ERROR %s
; RUN: not FileCheck -check-prefix=NOTSAME -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=NOTSAME-ERROR %s

foo
; DAGNOT: foo
; DAGNOT-DAG-NOT: bar
; NOTDAG: foo
; NOTDAG-NOT-DAG: bar
; NEXTNOT: foo
; NEXTNOT-NEXT-NOT: bar
; NOTNEXT: foo
; NOTNEXT-NOT-NEXT: bar
; SAMENOT: foo
; SAMENOT-SAME-NOT: bar
; NOTSAME: foo
; NOTSAME-NOT-SAME: bar

; ERROR: error: unsupported -NOT combo on prefix
; DAGNOT-ERROR-SAME:  'DAGNOT'
; NOTDAG-ERROR-SAME:  'NOTDAG'
; NEXTNOT-ERROR-SAME: 'NEXTNOT'
; NOTNEXT-ERROR-SAME: 'NOTNEXT'
; SAMENOT-ERROR-SAME: 'SAMENOT'
; NOTSAME-ERROR-SAME: 'NOTSAME'