// RUN: FileCheck -check-prefix=ANOTHER-PREFIX -input-file %s %s
// RUN: %ProtectFileCheckOutput not FileCheck -check-prefix=PREFIX1 -check-prefix=PREFIX2 -input-file %s %s 2>&1 | FileCheck -strict-whitespace -check-prefix=CHECK-NONEXISTENT-PREFIX -check-prefix=ALSO-NONEXISTENT -allow-unused-prefixes %s
// RUN: %ProtectFileCheckOutput not FileCheck -check-prefixes=PREFIX1,PREFIX2 -input-file %s %s 2>&1 | FileCheck -strict-whitespace -check-prefixes=CHECK-NONEXISTENT-PREFIX,ALSO-NONEXISTENT -allow-unused-prefixes %s

foobar
; ANOTHER-PREFIX: foobar

; We use regex to match the colon so that FileCheck won't think it is a check
; prefix.
; CHECK-NONEXISTENT-PREFIX: error: no check strings found with prefixes 'PREFIX1{{:}}', 'PREFIX2{{:}}'