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-rw-r--r--tests/ui/instrument-xray/flags-dupe-ignore-loops.rs7
1 files changed, 7 insertions, 0 deletions
diff --git a/tests/ui/instrument-xray/flags-dupe-ignore-loops.rs b/tests/ui/instrument-xray/flags-dupe-ignore-loops.rs
new file mode 100644
index 000000000..75b210a65
--- /dev/null
+++ b/tests/ui/instrument-xray/flags-dupe-ignore-loops.rs
@@ -0,0 +1,7 @@
+// Checks that `-Z instrument-xray` does not allow duplicates.
+//
+// needs-xray
+// compile-flags: -Z instrument-xray=ignore-loops,ignore-loops
+// error-pattern: incorrect value `ignore-loops,ignore-loops` for unstable option `instrument-xray`
+
+fn main() {}