From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org,
Paul Zimmermann <Paul.Zimmermann@inria.fr>,
Wilco Dijkstra <Wilco.Dijkstra@arm.com>
Subject: [PATCH v5 11/12] math: Use fmin/fmax on hypot
Date: Tue, 7 Dec 2021 16:03:52 -0300 [thread overview]
Message-ID: <20211207190353.3282666-12-adhemerval.zanella@linaro.org> (raw)
In-Reply-To: <20211207190353.3282666-1-adhemerval.zanella@linaro.org>
From: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
It optimizes for architectures that provides fast builtins.
Checked on aarch64-linux-gnu.
---
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))
--
2.32.0
next prev parent reply other threads:[~2021-12-07 19:04 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-07 19:03 [PATCH v5 00/12] Improve hypot Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 01/12] math: Simplify hypotf implementation Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 02/12] math: Use an improved algorithm for hypot (dbl-64) Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 03/12] math: Improve hypot performance with FMA Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 04/12] math: Use an improved algorithm for hypotl (ldbl-96) Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 05/12] math: Use an improved algorithm for hypotl (ldbl-128) Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 06/12] i386: Move hypot implementation to C Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 07/12] math: Remove powerpc e_hypot Adhemerval Zanella
2021-12-07 19:42 ` Paul A. Clarke
2021-12-07 19:03 ` [PATCH v5 08/12] math: Add math-use-builtinds-fmax.h Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 09/12] math: Add math-use-builtinds-fmin.h Adhemerval Zanella
2021-12-07 19:03 ` [PATCH v5 10/12] aarch64: Add math-use-builtins-f{max,min}.h Adhemerval Zanella
2021-12-07 19:03 ` Adhemerval Zanella [this message]
2021-12-07 19:03 ` [PATCH v5 12/12] math: Remove the error handling wrapper from hypot and hypotf Adhemerval Zanella
2021-12-08 5:51 ` [PATCH v5 00/12] Improve hypot Paul Zimmermann
2021-12-10 19:31 ` Adhemerval Zanella
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