Add (expect_broken) test for #11545wip/test-11545

2 files changed, 16 insertions, 0 deletions

diff --git a/testsuite/tests/perf/compiler/T11545.hs b/testsuite/tests/perf/compiler/T11545.hs
new file mode 100644
index 0000000000..d35e21c2e8
--- /dev/null
+++ b/testsuite/tests/perf/compiler/T11545.hs
@@ -0,0 +1,12 @@
+module T11545 where
+
+data A = A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A deriving (Eq)
+
+data QuadTree a = QuadTree !Int [a] (QuadTree a) (QuadTree a) (QuadTree a) (QuadTree a)
+
+foldQuadTree :: (a -> b -> b) -> Int -> b -> QuadTree a -> b
+foldQuadTree f maxSize = go
+    where
+        go z (QuadTree size elems t1 t2 t3 t4)
+            | size <= maxSize = foldr f z elems
+            | otherwise       = go (go (go (go z t4) t3) t2) t1
diff --git a/testsuite/tests/perf/compiler/all.T b/testsuite/tests/perf/compiler/all.T
index 937858c2a7..b09c418698 100644
--- a/testsuite/tests/perf/compiler/all.T
+++ b/testsuite/tests/perf/compiler/all.T
@@ -452,3 +452,7 @@ test ('T9198',
       [ collect_compiler_stats('bytes allocated',2) ],
       compile,
       [''])
+
+test('T11545',
+     [ expect_broken(11545) ],
+     compile, ['-O +RTS -M50M -RTS'])