1 files changed, 16 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/pr14649-1.c b/gcc/testsuite/gcc.dg/pr14649-1.c
new file mode 100644
index 000000000..34f42f08f
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/pr14649-1.c
@@ -0,0 +1,16 @@
+/* PR c/14649 */
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+
+double atan(double);
+
+const double pi = 4*atan(1.0);  /* { dg-warning "not a constant expression" } */
+
+const double ok = 4*__builtin_atan(1.0);
+
+double foo()
+{
+  double ok2 = 4*atan(1.0);
+  return ok2;
+}
+