1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/tailcall-14.c b/gcc/testsuite/gcc.dg/tree-ssa/tailcall-14.c
new file mode 100644
index 0000000..6fadff8
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/tree-ssa/tailcall-14.c
@@ -0,0 +1,25 @@
+/* { dg-do compile } */
+/* { dg-options "-O2 -fdump-tree-tailc-details" } */
+
+/* PR tree-optimization/67797 */
+
+void *my_func(void *s, int n)
+{
+  __builtin_memset(s, 0, n);
+  return s;
+}
+void *my_func1(void *d, void *s, int n)
+{
+  __builtin_memcpy(d, s, n);
+  return d;
+}
+void *my_func2(void *s, void *p1, int n)
+{
+  if (p1)
+    __builtin_memcpy(s, p1, n);
+  else
+    __builtin_memset(s, 0, n);
+  return s;
+}
+
+/* { dg-final { scan-tree-dump-times "Found tail call" 4 "tailc"} } */