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| author | Stefan Liebler <stli@linux.ibm.com> | 2019-12-11 15:09:21 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2019-12-11 15:12:17 +0100 |
| commit | 62560ee84095274bab1050817f42e782df226a17 (patch) | |
| tree | 2cbaf3b217ed1ce2555b1df91254fa8526f5ea43 /sysdeps/ieee754 | |
| parent | 6c1b6a5e8cd91e0e1965509ad91e627e60eb00a3 (diff) | |
| download | glibc-62560ee84095274bab1050817f42e782df226a17.tar.gz | |
Use GCC builtins for ceil functions if desired.
This patch is using the corresponding GCC builtin for ceilf, ceil,
ceill and ceilf128 if the USE_FUNCTION_BUILTIN macros are defined to one
in math-use-builtins.h.
This is the case for s390 if build with at least --march=z196 --mzarch.
Otherwise the generic implementation is used. The code of the generic
implementation is not changed.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Diffstat (limited to 'sysdeps/ieee754')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_ceil.c | 6 | ||||
| -rw-r--r-- | sysdeps/ieee754/float128/float128_private.h | 3 | ||||
| -rw-r--r-- | sysdeps/ieee754/flt-32/s_ceilf.c | 7 | ||||
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_ceill.c | 6 |
4 files changed, 21 insertions, 1 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) diff --git a/sysdeps/ieee754/float128/float128_private.h b/sysdeps/ieee754/float128/float128_private.h index 8c8a74a12c..01881b574a 100644 --- a/sysdeps/ieee754/float128/float128_private.h +++ b/sysdeps/ieee754/float128/float128_private.h @@ -146,6 +146,8 @@ #define USE_RINTL_BUILTIN USE_RINTF128_BUILTIN #undef USE_FLOORL_BUILTIN #define USE_FLOORL_BUILTIN USE_FLOORF128_BUILTIN +#undef USE_CEILL_BUILTIN +#define USE_CEILL_BUILTIN USE_CEILF128_BUILTIN /* IEEE function renames. */ #define __ieee754_acoshl __ieee754_acoshf128 @@ -352,6 +354,7 @@ #define __builtin_nearbyintl __builtin_nearbyintf128 #define __builtin_rintl __builtin_rintf128 #define __builtin_floorl __builtin_floorf128 +#define __builtin_ceill __builtin_ceilf128 /* Get the constant suffix from bits/floatn-compat.h. */ #define L(x) __f128 (x) diff --git a/sysdeps/ieee754/flt-32/s_ceilf.c b/sysdeps/ieee754/flt-32/s_ceilf.c index 25cba0807c..7d4990f3ff 100644 --- a/sysdeps/ieee754/flt-32/s_ceilf.c +++ b/sysdeps/ieee754/flt-32/s_ceilf.c @@ -17,11 +17,15 @@ #include <math.h> #include <math_private.h> #include <libm-alias-float.h> - +#include <math-use-builtins.h> float __ceilf(float x) { +#if USE_CEILF_BUILTIN + return __builtin_ceilf (x); +#else + /* Use generic implementation. */ int32_t i0,j0; uint32_t i; @@ -44,6 +48,7 @@ __ceilf(float x) } SET_FLOAT_WORD(x,i0); return x; +#endif /* ! USE_CEILF_BUILTIN */ } #ifndef __ceilf libm_alias_float (__ceil, ceil) diff --git a/sysdeps/ieee754/ldbl-128/s_ceill.c b/sysdeps/ieee754/ldbl-128/s_ceill.c index 2ec55de25a..02ffa7af2b 100644 --- a/sysdeps/ieee754/ldbl-128/s_ceill.c +++ b/sysdeps/ieee754/ldbl-128/s_ceill.c @@ -28,9 +28,14 @@ static char rcsid[] = "$NetBSD: $"; #include <math.h> #include <math_private.h> #include <libm-alias-ldouble.h> +#include <math-use-builtins.h> _Float128 __ceill(_Float128 x) { +#if USE_CEILL_BUILTIN + return __builtin_ceill (x); +#else + /* Use generic implementation. */ int64_t i0,i1,j0; uint64_t i,j; GET_LDOUBLE_WORDS64(i0,i1,x); @@ -64,5 +69,6 @@ _Float128 __ceill(_Float128 x) } SET_LDOUBLE_WORDS64(x,i0,i1); return x; +#endif /* ! USE_CEILL_BUILTIN */ } libm_alias_ldouble (__ceil, ceil) |