1 files changed, 28 insertions, 0 deletions
diff --git a/unordsf2.c b/unordsf2.c
new file mode 100644
index 0000000000000..03a1969dd981b
--- /dev/null
+++ b/unordsf2.c
@@ -0,0 +1,28 @@
+/* $NetBSD: unordsf2.c,v 1.1 2003/05/06 08:58:20 rearnsha Exp $ */
+
+/*
+ * Written by Richard Earnshaw, 2003.  This file is in the Public Domain.
+ */
+
+#include "softfloat-for-gcc.h"
+#include "milieu.h"
+#include "softfloat.h"
+
+#include <sys/cdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+__RCSID("$NetBSD: unordsf2.c,v 1.1 2003/05/06 08:58:20 rearnsha Exp $");
+#endif /* LIBC_SCCS and not lint */
+
+flag __unordsf2(float32, float32);
+
+flag
+__unordsf2(float32 a, float32 b)
+{
+	/*
+	 * The comparison is unordered if either input is a NaN.
+	 * Test for this by comparing each operand with itself.
+	 * We must perform both comparisons to correctly check for
+	 * signalling NaNs.
+	 */
+	return 1 ^ (float32_eq(a, a) & float32_eq(b, b));
+}