1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/c-c++-common/pr121159.c b/gcc/testsuite/c-c++-common/pr121159.c
new file mode 100644
index 0000000..c8c5d67
--- /dev/null
+++ b/gcc/testsuite/c-c++-common/pr121159.c
@@ -0,0 +1,17 @@
+/* PR middle-end/121159 */
+/* { dg-do compile { target musttail } } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+/* { dg-final { scan-tree-dump-times "foo \\\(\[^\n\r]*\\\); \\\[tail call\\\] \\\[must tail call\\\]" 1 "optimized" } } */
+		
+[[noreturn, gnu::noipa]] void
+foo (void)
+{
+  for (;;)
+    ;
+}
+
+void
+bar (void)
+{
+  [[gnu::musttail]] return foo ();
+}