From cf2dff2b1e3fa55fa5415d524200070d0d7aacfe Mon Sep 17 00:00:00 2001
From: Albert Larsan <74931857+albertlarsan68@users.noreply.github.com>
Date: Thu, 5 Jan 2023 09:13:28 +0100
Subject: Move /src/test to /tests

---
 tests/codegen/drop.rs | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 tests/codegen/drop.rs

(limited to 'tests/codegen/drop.rs')

diff --git a/tests/codegen/drop.rs b/tests/codegen/drop.rs
new file mode 100644
index 00000000000..99402827158
--- /dev/null
+++ b/tests/codegen/drop.rs
@@ -0,0 +1,36 @@
+// ignore-wasm32-bare compiled with panic=abort by default
+// compile-flags: -C no-prepopulate-passes
+
+#![crate_type = "lib"]
+
+struct SomeUniqueName;
+
+impl Drop for SomeUniqueName {
+    fn drop(&mut self) {
+    }
+}
+
+pub fn possibly_unwinding() {
+}
+
+// CHECK-LABEL: @droppy
+#[no_mangle]
+pub fn droppy() {
+// Check that there are exactly 6 drop calls. The cleanups for the unwinding should be reused, so
+// that's one new drop call per call to possibly_unwinding(), and finally 3 drop calls for the
+// regular function exit. We used to have problems with quadratic growths of drop calls in such
+// functions.
+// FIXME(eddyb) the `void @` forces a match on the instruction, instead of the
+// comment, that's `; call core::ptr::drop_in_place::<drop::SomeUniqueName>`
+// for the `v0` mangling, should switch to matching on that once `legacy` is gone.
+// CHECK-COUNT-6: {{(call|invoke) void @.*}}drop_in_place{{.*}}SomeUniqueName
+// CHECK-NOT: {{(call|invoke) void @.*}}drop_in_place{{.*}}SomeUniqueName
+// The next line checks for the } that ends the function definition
+// CHECK-LABEL: {{^[}]}}
+    let _s = SomeUniqueName;
+    possibly_unwinding();
+    let _s = SomeUniqueName;
+    possibly_unwinding();
+    let _s = SomeUniqueName;
+    possibly_unwinding();
+}
-- 
cgit 1.4.1-3-g733a5