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-rw-r--r--test/FileCheck/check-prefixes.txt9
-rw-r--r--test/FileCheck/validate-check-prefix.txt7
2 files changed, 16 insertions, 0 deletions
diff --git a/test/FileCheck/check-prefixes.txt b/test/FileCheck/check-prefixes.txt
new file mode 100644
index 0000000000..a8af29d60b
--- /dev/null
+++ b/test/FileCheck/check-prefixes.txt
@@ -0,0 +1,9 @@
+// RUN: FileCheck -check-prefix=ANOTHER-PREFIX -input-file %s %s
+// RUN: not FileCheck -check-prefix=PREFIX -input-file %s %s 2>&1 | FileCheck -check-prefix=CHECK-NONEXISTANT-PREFIX %s
+
+foobar
+; ANOTHER-PREFIX: foobar
+
+; We use regex to match the colon so that FileCheck won't think it is a check
+; prefix.
+; CHECK-NONEXISTANT-PREFIX: error: no check strings found with prefix 'PREFIX{{:}}'
diff --git a/test/FileCheck/validate-check-prefix.txt b/test/FileCheck/validate-check-prefix.txt
new file mode 100644
index 0000000000..fe219a319c
--- /dev/null
+++ b/test/FileCheck/validate-check-prefix.txt
@@ -0,0 +1,7 @@
+// RUN: not FileCheck -check-prefix=A! -input-file %s %s 2>&1 | FileCheck -check-prefix=BAD_PREFIX %s
+// RUN: FileCheck -check-prefix=A1a-B_c -input-file %s %s
+
+foobar
+; A1a-B_c: foobar
+
+; BAD_PREFIX: Supplied check-prefix is invalid! Prefixes must start with a letter and contain only alphanumeric characters, hyphens and underscores