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-rw-r--r--tests/ui/issues/issue-18539.rs16
1 files changed, 16 insertions, 0 deletions
diff --git a/tests/ui/issues/issue-18539.rs b/tests/ui/issues/issue-18539.rs
new file mode 100644
index 000000000..745df26e3
--- /dev/null
+++ b/tests/ui/issues/issue-18539.rs
@@ -0,0 +1,16 @@
+// run-pass
+// Test that coercing bare fn's that return a zero sized type to
+// a closure doesn't cause an LLVM ERROR
+
+// pretty-expanded FIXME #23616
+
+struct Foo;
+
+fn uint_to_foo(_: usize) -> Foo {
+ Foo
+}
+
+#[allow(unused_must_use)]
+fn main() {
+ (0..10).map(uint_to_foo);
+}