1 files changed, 41 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/sibcall-5.c b/gcc/testsuite/gcc.dg/sibcall-5.c
new file mode 100644
index 00000000000..424908dba5a
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/sibcall-5.c
@@ -0,0 +1,41 @@
+/* Check that indirect sibcalls understand regparm.  */
+/* { dg-do run { target i?86-*-* } } */
+/* { dg-options "-O2" } */
+
+int (*f)(int, int) __attribute__((regparm(2)));
+int (*g)(int, int, int) __attribute__((regparm(3)));
+
+int __attribute__((noinline))
+foo(void)
+{
+  return f(1, 2);
+}
+
+int __attribute__((noinline))
+bar(void)
+{
+  return g(1, 2, 3);
+}
+
+int __attribute__((regparm(2)))
+f1(int x, int y)
+{
+  return x*3 + y;
+}
+
+int __attribute__((regparm(3)))
+g1(int x, int y, int z)
+{
+  return x*9 + y*3 + z;
+}
+
+int main()
+{
+  f = f1;
+  g = g1;
+  if (foo() != 1*3 + 2)
+    abort ();
+  if (bar() != 1*9 + 2*3 + 3)
+    abort ();
+  return 0;
+}