1 files changed, 57 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/builtins-41.c b/gcc/testsuite/gcc.dg/builtins-41.c
new file mode 100644
index 000000000..5b96551fb
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/builtins-41.c
@@ -0,0 +1,57 @@
+/* Copyright (C) 2004 Free Software Foundation.
+
+   Check that constant folding of copysign, copysignf and copysignl math
+   functions doesn't break anything and produces the expected results.
+
+   Written by Roger Sayle, 6th June 2004.  */
+
+/* { dg-do link } */
+/* { dg-options "-O2" } */
+
+extern void link_error(void);
+
+extern double copysign(double, double);
+extern float copysignf(float, float);
+extern long double copysignl(long double, long double);
+
+int main()
+{
+  if (copysign (2.0, 1.0) != 2.0)
+    link_error ();
+  if (copysign (2.0, -1.0) != -2.0)
+    link_error ();
+  if (copysign (-2.0, 1.0) != 2.0)
+    link_error ();
+  if (copysign (-2.0, -1.0) != -2.0)
+    link_error ();
+
+  if (copysign (2.0, 1.0) != 2.0)
+    link_error ();
+  if (copysign (2.0, -1.0) != -2.0)
+    link_error ();
+  if (copysign (-2.0, 1.0) != 2.0)
+    link_error ();
+  if (copysign (-2.0, -1.0) != -2.0)
+    link_error ();
+
+  if (copysignf (2.0f, 1.0f) != 2.0f)
+    link_error ();
+  if (copysignf (2.0f, -1.0f) != -2.0f)
+    link_error ();
+  if (copysignf (-2.0f, 1.0f) != 2.0f)
+    link_error ();
+  if (copysignf (-2.0f, -1.0f) != -2.0f)
+    link_error ();
+
+  if (copysignl (2.0l, 1.0l) != 2.0l)
+    link_error ();
+  if (copysignl (2.0l, -1.0l) != -2.0l)
+    link_error ();
+  if (copysignl (-2.0l, 1.0l) != 2.0l)
+    link_error ();
+  if (copysignl (-2.0l, -1.0l) != -2.0l)
+    link_error ();
+
+  return 0;
+}
+