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From: Yinyu Cai <caiyinyu@sourceware.org> To: glibc-cvs@sourceware.org Subject: [glibc] LoongArch: Hard Float Support for fmaxmag{f/ }, fminmag{f/ }. Date: Mon, 14 Nov 2022 02:03:58 +0000 (GMT) [thread overview] Message-ID: <20221114020358.221F4383236D@sourceware.org> (raw) https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=73e35174f5673d58cb8e1bd5f34c086a7759ff20 commit 73e35174f5673d58cb8e1bd5f34c086a7759ff20 Author: Xiaolin Tang <tangxiaolin@loongson.cn> Date: Mon Nov 7 22:08:19 2022 +0800 LoongArch: Hard Float Support for fmaxmag{f/ }, fminmag{f/ }. Use hardware Floating-point instruction f{maxa/mina}.{s/d}, to implement fmaxmag{f/ }, fminmag{f/ }. * sysdeps/loongarch/fpu/s_fmaxmag.c: New file. * sysdeps/loongarch/fpu/s_fmaxmagf.c: Likewise. * sysdeps/loongarch/fpu/s_fminmag.c: Likewise. * sysdeps/loongarch/fpu/s_fminmagf.c: Likewise. Diff: --- sysdeps/loongarch/fpu/s_fmaxmag.c | 29 +++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fmaxmagf.c | 29 +++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fminmag.c | 29 +++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fminmagf.c | 29 +++++++++++++++++++++++++++++ 4 files changed, 116 insertions(+) diff --git a/sysdeps/loongarch/fpu/s_fmaxmag.c b/sysdeps/loongarch/fpu/s_fmaxmag.c new file mode 100644 index 0000000000..8570a3ba48 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fmaxmag.c @@ -0,0 +1,29 @@ +/* fmaxmag(). 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 + <https://www.gnu.org/licenses/>. */ + +#define NO_MATH_REDIRECT +#include <math.h> +#include <libm-alias-double.h> + +double +__fmaxmag (double x, double y) +{ + asm volatile ("fmaxa.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; +} +libm_alias_double (__fmaxmag, fmaxmag) diff --git a/sysdeps/loongarch/fpu/s_fmaxmagf.c b/sysdeps/loongarch/fpu/s_fmaxmagf.c new file mode 100644 index 0000000000..413e7683dd --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fmaxmagf.c @@ -0,0 +1,29 @@ +/* fmaxmagf(). 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 + <https://www.gnu.org/licenses/>. */ + +#define NO_MATH_REDIRECT +#include <math.h> +#include <libm-alias-float.h> + +float +__fmaxmagf (float x, float y) +{ + asm volatile ("fmaxa.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; +} +libm_alias_float (__fmaxmag, fmaxmag) diff --git a/sysdeps/loongarch/fpu/s_fminmag.c b/sysdeps/loongarch/fpu/s_fminmag.c new file mode 100644 index 0000000000..2badf3d3e5 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fminmag.c @@ -0,0 +1,29 @@ +/* fminmag(). 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 + <https://www.gnu.org/licenses/>. */ + +#define NO_MATH_REDIRECT +#include <math.h> +#include <libm-alias-double.h> + +double +__fminmag (double x, double y) +{ + asm volatile ("fmina.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; +} +libm_alias_double (__fminmag, fminmag) diff --git a/sysdeps/loongarch/fpu/s_fminmagf.c b/sysdeps/loongarch/fpu/s_fminmagf.c new file mode 100644 index 0000000000..4d625312c0 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fminmagf.c @@ -0,0 +1,29 @@ +/* fminmagf(). 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 + <https://www.gnu.org/licenses/>. */ + +#define NO_MATH_REDIRECT +#include <math.h> +#include <libm-alias-float.h> + +float +__fminmagf (float x, float y) +{ + asm volatile ("fmina.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; +} +libm_alias_float (__fminmag, fminmag)
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