Move /src/test to /tests

1 files changed, 22 insertions, 0 deletions

diff --git a/tests/ui/codegen/issue-28950.rs b/tests/ui/codegen/issue-28950.rs
new file mode 100644
index 00000000000..8b55f42f3f4
--- /dev/null
+++ b/tests/ui/codegen/issue-28950.rs
@@ -0,0 +1,22 @@
+// run-pass
+// ignore-emscripten no threads
+// compile-flags: -O
+
+// Tests that the `vec!` macro does not overflow the stack when it is
+// given data larger than the stack.
+
+// FIXME(eddyb) Improve unoptimized codegen to avoid the temporary,
+// and thus run successfully even when compiled at -C opt-level=0.
+
+const LEN: usize = 1 << 15;
+
+use std::thread::Builder;
+
+fn main() {
+    assert!(Builder::new().stack_size(LEN / 2).spawn(|| {
+        // FIXME(eddyb) this can be vec![[0: LEN]] pending
+        // https://llvm.org/bugs/show_bug.cgi?id=28987
+        let vec = vec![unsafe { std::mem::zeroed::<[u8; LEN]>() }];
+        assert_eq!(vec.len(), 1);
+    }).unwrap().join().is_ok());
+}