From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 7891) id D7BB8382F10A; Mon, 14 Nov 2022 02:03:47 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D7BB8382F10A DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1668391427; bh=T79jjV58HQsAbpE6y+VOiBeCeXSWLYpO+c+O+n4QzgE=; h=From:To:Subject:Date:From; b=avA1DB8rZ80dOk+RK70qQsOlnNjV9H9+WtWxpaCVIZEvTMT4toYSbb52PH7vx+s2e 8phuWOcKx7r9Q46cCGl9is3LW8AxmbJ0WIUE/07CqmEMjUkjkPVJD2qmXsemQK5IyA 6gVlVJvgdV6yoEN7B2/E9GD+nxYpgf9xvQA+B7jY= Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit From: Yinyu Cai To: glibc-cvs@sourceware.org Subject: [glibc] LoongArch: Hard Float Support for fmaximum{f/ }, fminimum{f/ }. X-Act-Checkin: glibc X-Git-Author: Xiaolin Tang X-Git-Refname: refs/heads/master X-Git-Oldrev: 5fe2647d3168194f3534bbf1c02930c891a25977 X-Git-Newrev: 1ed6c7ab2e4c51251932daecb0d14bfa71c35aee Message-Id: <20221114020347.D7BB8382F10A@sourceware.org> Date: Mon, 14 Nov 2022 02:03:47 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1ed6c7ab2e4c51251932daecb0d14bfa71c35aee commit 1ed6c7ab2e4c51251932daecb0d14bfa71c35aee Author: Xiaolin Tang Date: Mon Nov 7 22:05:19 2022 +0800 LoongArch: Hard Float Support for fmaximum{f/ }, fminimum{f/ }. Use hardware Floating-point instruction f{max/min}.{s/d}, fclass.{s/d} to implement fmaximum{f/ }, fminimum{f/ }. * sysdeps/loongarch/fpu/s_fmaximum.c: New file. * sysdeps/loongarch/fpu/s_fmaximumf.c: Likewise. * sysdeps/loongarch/fpu/s_fminimum.c: Likewise. * sysdeps/loongarch/fpu/s_fminimumf.c: Likewise. Diff: --- sysdeps/loongarch/fpu/s_fmaximum.c | 40 +++++++++++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fmaximumf.c | 40 +++++++++++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fminimum.c | 40 +++++++++++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fminimumf.c | 40 +++++++++++++++++++++++++++++++++++++ 4 files changed, 160 insertions(+) diff --git a/sysdeps/loongarch/fpu/s_fmaximum.c b/sysdeps/loongarch/fpu/s_fmaximum.c new file mode 100644 index 0000000000..af1c2bf006 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fmaximum.c @@ -0,0 +1,40 @@ +/* fmaximum(). LoongArch version. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#define NO_MATH_REDIRECT +#include +#include +#include + +double +__fmaximum (double x, double y) +{ + int x_cond; + int y_cond; + asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x)); + asm volatile ("fclass.d \t%0, %1" : "=f" (y_cond) : "f" (y)); + + if (__glibc_unlikely((x_cond | y_cond) & _FCLASS_NAN)) + return x * y; + else + { + asm volatile ("fmax.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_double (__fmaximum, fmaximum) diff --git a/sysdeps/loongarch/fpu/s_fmaximumf.c b/sysdeps/loongarch/fpu/s_fmaximumf.c new file mode 100644 index 0000000000..da4dcb6a3b --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fmaximumf.c @@ -0,0 +1,40 @@ +/* fmaximumf(). LoongArch version. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#define NO_MATH_REDIRECT +#include +#include +#include + +float +__fmaximumf (float x, float y) +{ + int x_cond; + int y_cond; + asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x)); + asm volatile ("fclass.s \t%0, %1" : "=f" (y_cond) : "f" (y)); + + if (__glibc_unlikely((x_cond | y_cond) & _FCLASS_NAN)) + return x * y; + else + { + asm volatile ("fmax.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_float (__fmaximum, fmaximum) diff --git a/sysdeps/loongarch/fpu/s_fminimum.c b/sysdeps/loongarch/fpu/s_fminimum.c new file mode 100644 index 0000000000..e395ff7e62 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fminimum.c @@ -0,0 +1,40 @@ +/* fminimum(). LoongArch version. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#define NO_MATH_REDIRECT +#include +#include +#include + +double +__fminimum (double x, double y) +{ + int x_cond; + int y_cond; + asm volatile ("fclass.d \t%0, %1" : "=f" (x_cond) : "f" (x)); + asm volatile ("fclass.d \t%0, %1" : "=f" (y_cond) : "f" (y)); + + if (__glibc_unlikely((x_cond | y_cond) & _FCLASS_NAN)) + return x * y; + else + { + asm volatile ("fmin.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_double (__fminimum, fminimum) diff --git a/sysdeps/loongarch/fpu/s_fminimumf.c b/sysdeps/loongarch/fpu/s_fminimumf.c new file mode 100644 index 0000000000..680c5e7e9a --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fminimumf.c @@ -0,0 +1,40 @@ +/* fminimumf(). LoongArch version. + Copyright (C) 2022 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#define NO_MATH_REDIRECT +#include +#include +#include + +float +__fminimumf (float x, float y) +{ + int x_cond; + int y_cond; + asm volatile ("fclass.s \t%0, %1" : "=f" (x_cond) : "f" (x)); + asm volatile ("fclass.s \t%0, %1" : "=f" (y_cond) : "f" (y)); + + if (__glibc_unlikely((x_cond | y_cond) & _FCLASS_NAN)) + return x * y; + else + { + asm volatile ("fmin.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_float (__fminimum, fminimum)