1 files changed, 58 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/builtins-32.c b/gcc/testsuite/gcc.dg/builtins-32.c
new file mode 100644
index 000000000..3d2a36190
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/builtins-32.c
@@ -0,0 +1,58 @@
+/* Copyright (C) 2004 Free Software Foundation.
+
+   Check that constant folding of signbit, signbitf and signbitl math
+   functions doesn't break anything and produces the expected results.
+
+   Written by Roger Sayle, 28th January 2004.  */
+
+/* { dg-do run } */
+/* { dg-options "-O2" } */
+
+extern void abort(void);
+
+extern int signbit(double);
+extern int signbitf(float);
+extern int signbitl(long double);
+
+int test (double x)
+{
+  return signbit(x);
+}
+
+int testf (float x)
+{
+  return signbitf(x);
+}
+
+int testl (long double x)
+{
+  return signbitl(x);
+}
+
+
+int main()
+{
+  if (test (0.0) != 0)
+    abort ();
+  if (test (1.0) != 0)
+    abort ();
+  if (test (-2.0) == 0)
+    abort ();
+
+  if (testf (0.0f) != 0)
+    abort ();
+  if (testf (1.0f) != 0)
+    abort ();
+  if (testf (-2.0f) == 0)
+    abort ();
+
+  if (testl (0.0l) != 0)
+    abort ();
+  if (testl (1.0l) != 0)
+    abort ();
+  if (testl (-2.0l) == 0)
+    abort ();
+
+  return 0;
+}
+