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| author | Stefan Liebler <stli@linux.ibm.com> | 2019-12-11 15:09:20 +0100 |
|---|---|---|
| committer | Stefan Liebler <stli@linux.ibm.com> | 2019-12-11 15:12:16 +0100 |
| commit | 6c1b6a5e8cd91e0e1965509ad91e627e60eb00a3 (patch) | |
| tree | 5fb98d8518228eb9b7d517826b360fb3196cf765 /sysdeps/ieee754/ldbl-128 | |
| parent | a2a9b004297b777758420c952cb6eea5985d37fe (diff) | |
| download | glibc-6c1b6a5e8cd91e0e1965509ad91e627e60eb00a3.zip glibc-6c1b6a5e8cd91e0e1965509ad91e627e60eb00a3.tar.gz glibc-6c1b6a5e8cd91e0e1965509ad91e627e60eb00a3.tar.bz2 | |
Use GCC builtins for floor functions if desired.
This patch is using the corresponding GCC builtin for floorf, floor,
floorl and floorf128 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/ldbl-128')
| -rw-r--r-- | sysdeps/ieee754/ldbl-128/s_floorl.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sysdeps/ieee754/ldbl-128/s_floorl.c b/sysdeps/ieee754/ldbl-128/s_floorl.c index f340a3f..cfe0083 100644 --- a/sysdeps/ieee754/ldbl-128/s_floorl.c +++ b/sysdeps/ieee754/ldbl-128/s_floorl.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 __floorl(_Float128 x) { +#if USE_FLOORL_BUILTIN + return __builtin_floorl (x); +#else + /* Use generic implementation. */ int64_t i0,i1,j0; uint64_t i,j; GET_LDOUBLE_WORDS64(i0,i1,x); @@ -65,5 +70,6 @@ _Float128 __floorl(_Float128 x) } SET_LDOUBLE_WORDS64(x,i0,i1); return x; +#endif /* ! USE_FLOORL_BUILTIN */ } libm_alias_ldouble (__floor, floor) |