--- /dev/null
+// RUN: FileCheck -check-prefix=ANOTHER-PREFIX -input-file %s %s
+// RUN: 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 %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{{:}}'