From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 7891) id 404EE3851899; Mon, 14 Nov 2022 02:04:08 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 404EE3851899 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1668391454; bh=1ctFRz8SARF7AnCBWPzEclQBtDFvZo8mrQHGjGCFDeA=; h=From:To:Subject:Date:From; b=uvMwxZbGaloA5TqRwFQ21n91zohEpZ6/c1mAd6INibzzX/h/5uKTIwii1mFW1luPD MSm5iN332jBs1225ptIqSxYJ3GXK0nYy8nOBuPGAP1ag0gJAlLjbYJY2MxFp75hMsr GpQH5HXqaeLIthy7MLavzqeCVFTQx/L2UG/U+8RY= 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_mag_num{f/ }, fminimum_mag_num{f/ }. X-Act-Checkin: glibc X-Git-Author: Xiaolin Tang X-Git-Refname: refs/heads/master X-Git-Oldrev: a10f9fb3ff37b98f0adc5bdc0b4c32920c0c540a X-Git-Newrev: 838b0da96a33e1200adb279c9cef30b1079b6709 Message-Id: <20221114020414.404EE3851899@sourceware.org> Date: Mon, 14 Nov 2022 02:04:08 +0000 (GMT) List-Id: https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=838b0da96a33e1200adb279c9cef30b1079b6709 commit 838b0da96a33e1200adb279c9cef30b1079b6709 Author: Xiaolin Tang Date: Mon Nov 7 22:08:21 2022 +0800 LoongArch: Hard Float Support for fmaximum_mag_num{f/ }, fminimum_mag_num{f/ }. Use hardware Floating-point instruction f{maxa/mina}.{s/d}, fclass.{s/d} to implement fmaximum_mag_num{f/ }, fminimum_mag_num{f/ }. * sysdeps/loongarch/fpu/s_fmaximum_mag_num.c: New file. * sysdeps/loongarch/fpu/s_fmaximum_mag_numf.c: Likewise. * sysdeps/loongarch/fpu/s_fminimum_mag_num.c: Likewise. * sysdeps/loongarch/fpu/s_fminimum_mag_numf.c: Likewise. Diff: --- sysdeps/loongarch/fpu/s_fmaximum_mag_num.c | 48 +++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fmaximum_mag_numf.c | 48 +++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fminimum_mag_num.c | 48 +++++++++++++++++++++++++++++ sysdeps/loongarch/fpu/s_fminimum_mag_numf.c | 48 +++++++++++++++++++++++++++++ 4 files changed, 192 insertions(+) diff --git a/sysdeps/loongarch/fpu/s_fmaximum_mag_num.c b/sysdeps/loongarch/fpu/s_fmaximum_mag_num.c new file mode 100644 index 0000000000..04c801b196 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fmaximum_mag_num.c @@ -0,0 +1,48 @@ +/* fmaximum_mag_num(). 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_mag_num (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 & _FCLASS_NAN) && !(y_cond & _FCLASS_NAN))) + { + asm volatile ("fmaxa.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return y; + } + else if (__glibc_unlikely(!(x_cond & _FCLASS_NAN) && (y_cond & _FCLASS_NAN))) + { + asm volatile ("fmaxa.d \t%0, %1, %2" : "=f" (y) : "f" (x), "f" (y)); + return x; + } + else + { + asm volatile ("fmaxa.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_double (__fmaximum_mag_num, fmaximum_mag_num) diff --git a/sysdeps/loongarch/fpu/s_fmaximum_mag_numf.c b/sysdeps/loongarch/fpu/s_fmaximum_mag_numf.c new file mode 100644 index 0000000000..a2e1aaf142 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fmaximum_mag_numf.c @@ -0,0 +1,48 @@ +/* fmaximum_mag_numf(). 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 +__fmaximum_mag_numf (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 & _FCLASS_NAN) && !(y_cond & _FCLASS_NAN))) + { + asm volatile ("fmaxa.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return y; + } + else if (__glibc_unlikely(!(x_cond & _FCLASS_NAN) && (y_cond & _FCLASS_NAN))) + { + asm volatile ("fmaxa.s \t%0, %1, %2" : "=f" (y) : "f" (x), "f" (y)); + return x; + } + else + { + asm volatile ("fmaxa.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_float (__fmaximum_mag_num, fmaximum_mag_num) diff --git a/sysdeps/loongarch/fpu/s_fminimum_mag_num.c b/sysdeps/loongarch/fpu/s_fminimum_mag_num.c new file mode 100644 index 0000000000..ff5aecd6c1 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fminimum_mag_num.c @@ -0,0 +1,48 @@ +/* fminimum_mag_num(). 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_mag_num (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 & _FCLASS_NAN) && !(y_cond & _FCLASS_NAN))) + { + asm volatile ("fmina.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return y; + } + else if (__glibc_unlikely(!(x_cond & _FCLASS_NAN) && (y_cond & _FCLASS_NAN))) + { + asm volatile ("fmina.d \t%0, %1, %2" : "=f" (y) : "f" (x), "f" (y)); + return x; + } + else + { + asm volatile ("fmina.d \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_double (__fminimum_mag_num, fminimum_mag_num) diff --git a/sysdeps/loongarch/fpu/s_fminimum_mag_numf.c b/sysdeps/loongarch/fpu/s_fminimum_mag_numf.c new file mode 100644 index 0000000000..7c9a5dba55 --- /dev/null +++ b/sysdeps/loongarch/fpu/s_fminimum_mag_numf.c @@ -0,0 +1,48 @@ +/* fminimum_mag_numf(). 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 +__fminimum_mag_numf (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 & _FCLASS_NAN) && !(y_cond & _FCLASS_NAN))) + { + asm volatile ("fmina.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return y; + } + else if (__glibc_unlikely(!(x_cond & _FCLASS_NAN) && (y_cond & _FCLASS_NAN))) + { + asm volatile ("fmina.s \t%0, %1, %2" : "=f" (y) : "f" (x), "f" (y)); + return x; + } + else + { + asm volatile ("fmina.s \t%0, %1, %2" : "=f" (x) : "f" (x), "f" (y)); + return x; + } +} +libm_alias_float (__fminimum_mag_num, fminimum_mag_num)