1 files changed, 14 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.dg/torture/pr39764.C b/gcc/testsuite/g++.dg/torture/pr39764.C
new file mode 100644
index 000000000..a89013313
--- /dev/null
+++ b/gcc/testsuite/g++.dg/torture/pr39764.C
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+
+class A;
+class B { };
+extern const double NaN;
+B foo(A* exec, double d);
+inline B baz(A* a)     {
+    return foo(a, NaN);
+}
+B bar(A* a) {
+    return baz(a);
+}
+extern const double NaN = (__builtin_nanf(""));
+