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Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_ceil.c')
-rw-r--r--sysdeps/ieee754/dbl-64/s_ceil.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_ceil.c b/sysdeps/ieee754/dbl-64/s_ceil.c
index 8d66f027e7..3738211360 100644
--- a/sysdeps/ieee754/dbl-64/s_ceil.c
+++ b/sysdeps/ieee754/dbl-64/s_ceil.c
@@ -21,10 +21,15 @@
 #include <math.h>
 #include <math_private.h>
 #include <libm-alias-double.h>
+#include <math-use-builtins.h>
 
 double
 __ceil (double x)
 {
+#if USE_CEIL_BUILTIN
+  return __builtin_ceil (x);
+#else
+  /* Use generic implementation.  */
   int64_t i0, i;
   int32_t j0;
   EXTRACT_WORDS64 (i0, x);
@@ -58,6 +63,7 @@ __ceil (double x)
     }
   INSERT_WORDS64 (x, i0);
   return x;
+#endif /* ! USE_CEIL_BUILTIN  */
 }
 #ifndef __ceil
 libm_alias_double (__ceil, ceil)