1; RUN: not FileCheck -check-prefix=DAGNOT -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=DAGNOT-ERROR %s
2; RUN: not FileCheck -check-prefix=NOTDAG -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=NOTDAG-ERROR %s
3; RUN: not FileCheck -check-prefix=NEXTNOT -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=NEXTNOT-ERROR %s
4; RUN: not FileCheck -check-prefix=NOTNEXT -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=NOTNEXT-ERROR %s
5; RUN: not FileCheck -check-prefix=SAMENOT -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=SAMENOT-ERROR %s
6; RUN: not FileCheck -check-prefix=NOTSAME -input-file %s %s 2>&1 | FileCheck -check-prefix=ERROR -check-prefix=NOTSAME-ERROR %s
7
8foo
9; DAGNOT: foo
10; DAGNOT-DAG-NOT: bar
11; NOTDAG: foo
12; NOTDAG-NOT-DAG: bar
13; NEXTNOT: foo
14; NEXTNOT-NEXT-NOT: bar
15; NOTNEXT: foo
16; NOTNEXT-NOT-NEXT: bar
17; SAMENOT: foo
18; SAMENOT-SAME-NOT: bar
19; NOTSAME: foo
20; NOTSAME-NOT-SAME: bar
21
22; ERROR: error: unsupported -NOT combo on prefix
23; DAGNOT-ERROR-SAME:  'DAGNOT'
24; NOTDAG-ERROR-SAME:  'NOTDAG'
25; NEXTNOT-ERROR-SAME: 'NEXTNOT'
26; NOTNEXT-ERROR-SAME: 'NOTNEXT'
27; SAMENOT-ERROR-SAME: 'SAMENOT'
28; NOTSAME-ERROR-SAME: 'NOTSAME'
29