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authorXiaolin Tang <tangxiaolin@loongson.cn>2022-11-07 22:08:19 +0800
committercaiyinyu <caiyinyu@loongson.cn>2022-11-14 10:02:42 +0800
commit73e35174f5673d58cb8e1bd5f34c086a7759ff20 (patch)
tree7b0bd8f7337d55ab0a908e8c5d3a963f286fc467 /sysdeps
parentbd612245748b2662a6e37d6592db5b177f621208 (diff)
downloadglibc-73e35174f5673d58cb8e1bd5f34c086a7759ff20.tar.gz
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.
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/loongarch/fpu/s_fmaxmag.c29
-rw-r--r--sysdeps/loongarch/fpu/s_fmaxmagf.c29
-rw-r--r--sysdeps/loongarch/fpu/s_fminmag.c29
-rw-r--r--sysdeps/loongarch/fpu/s_fminmagf.c29
4 files changed, 116 insertions, 0 deletions
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)