1 files changed, 31 insertions, 0 deletions
diff --git a/gcc/testsuite/g++.old-deja/g++.other/regstack.C b/gcc/testsuite/g++.old-deja/g++.other/regstack.C
new file mode 100644
index 000000000..5b8334733
--- /dev/null
+++ b/gcc/testsuite/g++.old-deja/g++.other/regstack.C
@@ -0,0 +1,31 @@
+// { dg-do run { target i?86-*-* x86_64-*-* } }
+// { dg-options "-O2" }
+
+inline double foo (double x)
+{
+  register double r;
+  asm volatile ("fsqrt" : "=t" (r) : "0" (x));
+  return r;
+}
+
+struct X
+{
+  ~X() {}
+};
+
+int b;
+
+double bar (X x)
+{
+  if (b)
+    return 1.0;
+  return 36.0 * foo (36.0);
+}
+
+int main ()
+{
+  X x;
+  if (bar (x) != 216.0)
+    return 1;
+  return 0;
+}