1 files changed, 32 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/pr36339.c b/gcc/testsuite/gcc.c-torture/execute/pr36339.c
new file mode 100644
index 000000000..c4f36ddca
--- /dev/null
+++ b/gcc/testsuite/gcc.c-torture/execute/pr36339.c
@@ -0,0 +1,32 @@
+extern void abort (void);
+
+typedef unsigned long my_uintptr_t;
+
+int check_a(my_uintptr_t tagged_ptr);
+
+int __attribute__((noinline)) try_a(my_uintptr_t x)
+{
+  my_uintptr_t heap[2];
+  my_uintptr_t *hp = heap;
+
+  hp[0] = x;
+  hp[1] = 0;
+  return check_a((my_uintptr_t)(void*)((char*)hp + 1));
+}
+
+int __attribute__((noinline)) check_a(my_uintptr_t tagged_ptr)
+{
+  my_uintptr_t *hp = (my_uintptr_t*)(void*)((char*)tagged_ptr - 1);
+
+  if (hp[0] == 42 && hp[1] == 0)
+    return 0;
+  return -1;
+}
+
+int main(void)
+{
+  if (try_a(42) < 0)
+    abort ();
+  return 0;
+}
+