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-rw-r--r--sysdeps/generic/math-use-builtins.h5
-rw-r--r--sysdeps/ieee754/dbl-64/s_round.c6
-rw-r--r--sysdeps/ieee754/float128/float128_private.h3
-rw-r--r--sysdeps/ieee754/flt-32/s_roundf.c6
-rw-r--r--sysdeps/ieee754/ldbl-128/s_roundl.c6
-rw-r--r--sysdeps/s390/fpu/math-use-builtins.h11
6 files changed, 37 insertions, 0 deletions
diff --git a/sysdeps/generic/math-use-builtins.h b/sysdeps/generic/math-use-builtins.h
index ab379f45ba..34ca438a8c 100644
--- a/sysdeps/generic/math-use-builtins.h
+++ b/sysdeps/generic/math-use-builtins.h
@@ -46,4 +46,9 @@
#define USE_TRUNCL_BUILTIN 0
#define USE_TRUNCF128_BUILTIN 0
+#define USE_ROUND_BUILTIN 0
+#define USE_ROUNDF_BUILTIN 0
+#define USE_ROUNDL_BUILTIN 0
+#define USE_ROUNDF128_BUILTIN 0
+
#endif /* math-use-builtins.h */
diff --git a/sysdeps/ieee754/dbl-64/s_round.c b/sysdeps/ieee754/dbl-64/s_round.c
index 8f4b7cff86..7eb1ecb482 100644
--- a/sysdeps/ieee754/dbl-64/s_round.c
+++ b/sysdeps/ieee754/dbl-64/s_round.c
@@ -23,11 +23,16 @@
#include <math_private.h>
#include <libm-alias-double.h>
#include <stdint.h>
+#include <math-use-builtins.h>
double
__round (double x)
{
+#if USE_ROUND_BUILTIN
+ return __builtin_round (x);
+#else
+ /* Use generic implementation. */
int64_t i0, j0;
EXTRACT_WORDS64 (i0, x);
@@ -62,5 +67,6 @@ __round (double x)
INSERT_WORDS64 (x, i0);
return x;
+#endif /* ! USE_ROUND_BUILTIN */
}
libm_alias_double (__round, round)
diff --git a/sysdeps/ieee754/float128/float128_private.h b/sysdeps/ieee754/float128/float128_private.h
index 9cd3a63f11..a6c76ce364 100644
--- a/sysdeps/ieee754/float128/float128_private.h
+++ b/sysdeps/ieee754/float128/float128_private.h
@@ -150,6 +150,8 @@
#define USE_CEILL_BUILTIN USE_CEILF128_BUILTIN
#undef USE_TRUNCL_BUILTIN
#define USE_TRUNCL_BUILTIN USE_TRUNCF128_BUILTIN
+#undef USE_ROUNDL_BUILTIN
+#define USE_ROUNDL_BUILTIN USE_ROUNDF128_BUILTIN
/* IEEE function renames. */
#define __ieee754_acoshl __ieee754_acoshf128
@@ -358,6 +360,7 @@
#define __builtin_floorl __builtin_floorf128
#define __builtin_ceill __builtin_ceilf128
#define __builtin_truncl __builtin_truncf128
+#define __builtin_roundl __builtin_roundf128
/* Get the constant suffix from bits/floatn-compat.h. */
#define L(x) __f128 (x)
diff --git a/sysdeps/ieee754/flt-32/s_roundf.c b/sysdeps/ieee754/flt-32/s_roundf.c
index cddab7b505..5d91239d6e 100644
--- a/sysdeps/ieee754/flt-32/s_roundf.c
+++ b/sysdeps/ieee754/flt-32/s_roundf.c
@@ -22,11 +22,16 @@
#include <math_private.h>
#include <libm-alias-float.h>
+#include <math-use-builtins.h>
float
__roundf (float x)
{
+#if USE_ROUNDF_BUILTIN
+ return __builtin_roundf (x);
+#else
+ /* Use generic implementation. */
int32_t i0, j0;
GET_FLOAT_WORD (i0, x);
@@ -61,5 +66,6 @@ __roundf (float x)
SET_FLOAT_WORD (x, i0);
return x;
+#endif /* ! USE_ROUNDF_BUILTIN */
}
libm_alias_float (__round, round)
diff --git a/sysdeps/ieee754/ldbl-128/s_roundl.c b/sysdeps/ieee754/ldbl-128/s_roundl.c
index d41c9a04dc..8c7ae82217 100644
--- a/sysdeps/ieee754/ldbl-128/s_roundl.c
+++ b/sysdeps/ieee754/ldbl-128/s_roundl.c
@@ -23,11 +23,16 @@
#include <math_private.h>
#include <libm-alias-ldouble.h>
+#include <math-use-builtins.h>
_Float128
__roundl (_Float128 x)
{
+#if USE_ROUNDL_BUILTIN
+ return __builtin_roundl (x);
+#else
+ /* Use generic implementation. */
int32_t j0;
uint64_t i1, i0;
@@ -78,5 +83,6 @@ __roundl (_Float128 x)
SET_LDOUBLE_WORDS64 (x, i0, i1);
return x;
+#endif /* ! USE_ROUNDL_BUILTIN */
}
libm_alias_ldouble (__round, round)
diff --git a/sysdeps/s390/fpu/math-use-builtins.h b/sysdeps/s390/fpu/math-use-builtins.h
index a39715c612..51cb9f91ab 100644
--- a/sysdeps/s390/fpu/math-use-builtins.h
+++ b/sysdeps/s390/fpu/math-use-builtins.h
@@ -46,18 +46,24 @@
# define USE_TRUNCF_BUILTIN 1
# define USE_TRUNCL_BUILTIN 1
+# define USE_ROUND_BUILTIN 1
+# define USE_ROUNDF_BUILTIN 1
+# define USE_ROUNDL_BUILTIN 1
+
# if __GNUC_PREREQ (8, 0)
# define USE_NEARBYINTF128_BUILTIN 1
# define USE_RINTF128_BUILTIN 1
# define USE_FLOORF128_BUILTIN 1
# define USE_CEILF128_BUILTIN 1
# define USE_TRUNCF128_BUILTIN 1
+# define USE_ROUNDF128_BUILTIN 1
# else
# define USE_NEARBYINTF128_BUILTIN 0
# define USE_RINTF128_BUILTIN 0
# define USE_FLOORF128_BUILTIN 0
# define USE_CEILF128_BUILTIN 0
# define USE_TRUNCF128_BUILTIN 0
+# define USE_ROUNDF128_BUILTIN 0
# endif
#else
@@ -88,6 +94,11 @@
# define USE_TRUNCL_BUILTIN 0
# define USE_TRUNCF128_BUILTIN 0
+# define USE_ROUND_BUILTIN 0
+# define USE_ROUNDF_BUILTIN 0
+# define USE_ROUNDL_BUILTIN 0
+# define USE_ROUNDF128_BUILTIN 0
+
#endif /* ! HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT */
#endif /* math-use-builtins.h */