From 6c1b6a5e8cd91e0e1965509ad91e627e60eb00a3 Mon Sep 17 00:00:00 2001 From: Stefan Liebler Date: Wed, 11 Dec 2019 15:09:20 +0100 Subject: 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 --- sysdeps/ieee754/ldbl-128/s_floorl.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'sysdeps/ieee754/ldbl-128/s_floorl.c') diff --git a/sysdeps/ieee754/ldbl-128/s_floorl.c b/sysdeps/ieee754/ldbl-128/s_floorl.c index f340a3fbca..cfe008392a 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 #include #include +#include _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) -- cgit 1.4.1