1 files changed, 9 insertions, 4 deletions
diff --git a/lib/msun/src/s_fmax.c b/lib/msun/src/s_fmax.c
index 0c234bcc5f7f..5d437fcefc9b 100644
--- a/lib/msun/src/s_fmax.c
+++ b/lib/msun/src/s_fmax.c
@@ -1,5 +1,5 @@
 /*-
- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ * SPDX-License-Identifier: BSD-2-Clause
  *
  * Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
  * All rights reserved.
@@ -26,14 +26,18 @@
  * SUCH DAMAGE.
  */
 
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
 #include <float.h>
 #include <math.h>
 
 #include "fpmath.h"
 
+#ifdef USE_BUILTIN_FMAX
+double
+fmax(double x, double y)
+{
+	return (__builtin_fmax(x, y));
+}
+#else
 double
 fmax(double x, double y)
 {
@@ -54,6 +58,7 @@ fmax(double x, double y)
 
 	return (x > y ? x : y);
 }
+#endif
 
 #if (LDBL_MANT_DIG == 53)
 __weak_reference(fmax, fmaxl);