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-rw-r--r--sysdeps/ieee754/ldbl-128/s_truncl.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_truncl.c b/sysdeps/ieee754/ldbl-128/s_truncl.c
index de4dd34d59..d11ab937e2 100644
--- a/sysdeps/ieee754/ldbl-128/s_truncl.c
+++ b/sysdeps/ieee754/ldbl-128/s_truncl.c
@@ -23,11 +23,16 @@
 
 #include <math_private.h>
 #include <libm-alias-ldouble.h>
+#include <math-use-builtins.h>
 
 
 _Float128
 __truncl (_Float128 x)
 {
+#if USE_TRUNCL_BUILTIN
+  return __builtin_truncl (x);
+#else
+  /* Use generic implementation.  */
   int32_t j0;
   uint64_t i0, i1, sx;
 
@@ -54,5 +59,6 @@ __truncl (_Float128 x)
     }
 
   return x;
+#endif /* ! USE_TRUNCL_BUILTIN  */
 }
 libm_alias_ldouble (__trunc, trunc)