1// RUN: not FileCheck -check-prefix=A! -input-file %s %s 2>&1 | FileCheck -check-prefix=BAD_PREFIX %s
2// RUN: FileCheck -check-prefix=A1a-B_c -input-file %s %s
3// RUN: not FileCheck -check-prefix=REPEAT -check-prefix=REPEAT -input-file %s %s 2>&1 | FileCheck -check-prefix=BAD_PREFIX %s
4// RUN: not FileCheck -check-prefix=VALID -check-prefix=A! -input-file %s %s 2>&1 | FileCheck -check-prefix=BAD_PREFIX %s
5// RUN: not FileCheck -check-prefix= -input-file %s %s 2>&1 | FileCheck -check-prefix=BAD_PREFIX %s
6foobar
7; A1a-B_c: foobar
8
9; BAD_PREFIX: Supplied check-prefix is invalid! Prefixes must be
10  unique and start with a letter and contain only alphanumeric characters, hyphens and underscores
11