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From: Adhemerval Zanella <azanella@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc/azanella/hypot-refactor] math: Use fmin/fmax on hypot Date: Mon, 6 Dec 2021 17:59:09 +0000 (GMT) [thread overview] Message-ID: <20211206175909.CE5033858433@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=0b4dc7144851848096abc893ee001048bc09853c commit 0b4dc7144851848096abc893ee001048bc09853c Author: Wilco Dijkstra <Wilco.Dijkstra@arm.com> Date: Wed Dec 1 11:08:14 2021 -0300 math: Use fmin/fmax on hypot It optimizes for architectures that provides fast builtins. Checked on aarch64-linux-gnu. Diff: --- sysdeps/ieee754/dbl-64/e_hypot.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/sysdeps/ieee754/dbl-64/e_hypot.c b/sysdeps/ieee754/dbl-64/e_hypot.c index 6fedf0d61f..0bdab989e4 100644 --- a/sysdeps/ieee754/dbl-64/e_hypot.c +++ b/sysdeps/ieee754/dbl-64/e_hypot.c @@ -38,6 +38,7 @@ #include <math_private.h> #include <math-underflow.h> #include <math-narrow-eval.h> +#include <math-use-builtins.h> #include <libm-alias-finite.h> #include "math_config.h" @@ -95,8 +96,8 @@ __ieee754_hypot (double x, double y) x = fabs (x); y = fabs (y); - double ax = x < y ? y : x; - double ay = x < y ? x : y; + double ax = USE_FMAX_BUILTIN ? fmax (x, y) : (x < y ? y : x); + double ay = USE_FMIN_BUILTIN ? fmin (x, y) : (x < y ? x : y); /* If ax is huge, scale both inputs down. */ if (__glibc_unlikely (ax > LARGE_VAL))
next reply other threads:[~2021-12-06 17:59 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-12-06 17:59 Adhemerval Zanella [this message] -- strict thread matches above, loose matches on Subject: below -- 2021-12-01 17:10 Adhemerval Zanella 2021-12-01 16:46 Adhemerval Zanella
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