Re: i386 XFmode testcase

[hjl@lucon.org (H.J. Lu)]

> 
> 
> It occurs to me that that testcase could easily live in gcc.dg;
> its driver is more suited to handling tests for specific targets.
> 
> Can you rewrite the test within the gcc.dg framework (look at
> other .c files in gcc.dg for examples).
> 
> jeff
> 

Here it is.

Thanks.

-- 
H.J. Lu (hjl@gnu.org)
--
Mon Feb 16 11:17:27 1998  H.J. Lu  (hjl@gnu.org)

	* gcc.dg/980211-1.c: New to test long double on
	x86.

--- /dev/null	Wed Dec 31 16:00:00 1969
+++ gcc.dg/980211-1.c	Mon Feb 16 11:31:37 1998
@@ -0,0 +1,27 @@
+/* Test long double on x86. */
+
+/* { dg-do run { target i?86-*-* } } */
+/* { dg-options -O2 } */
+
+__inline int
+__signbitl (long double __x)
+{
+  union { long double __l; int __i[3]; } __u = { __l: __x };
+
+  return (__u.__i[2] & 0x8000) != 0;
+}
+
+void
+foo (long double x, long double y)
+{
+  long double z = x / y;
+  if (__signbitl (x) && __signbitl (z))
+    abort ();
+}
+
+int main()
+{
+  if (sizeof (long double) > sizeof (double))
+    foo (-0.0, -1.0);
+  return 0;
+}