| Message ID | 20200928084652.458248-2-ibmibmibm.tw@gmail.com |
|---|---|
| State | New |
| Headers | show |
| Series | [v5,1/2] math: redirect roundeven function | expand |
H.J. Lu <hjl.tools@gmail.com> 於 2020年5月28日 週四 下午8:06寫道： > > On Sat, May 2, 2020 at 8:06 AM Shen-Ta Hsieh via Libc-alpha > <libc-alpha@sourceware.org> wrote: > > > > This patch adds support for the sse4.1 hardware floating point > > roundeven. > > Do you have FSF paper on file? Yes. Should I send a PDF copy to you? Shen-Ta Hsieh <ibmibmibm.tw@gmail.com> 於 2020年9月28日 週一 下午4:48寫道： > > This patch adds support for the sse4.1 hardware floating point > roundeven. > > Here is a benchmark result on my AMD Ryzen 9 3900X system: > > * benchmark result before this commit > | | roundeven | roundevenf | > |------------|--------------|--------------| > | duration | 3.77591e+09 | 3.77481e+09 | > | iterations | 4.30692e+08 | 4.55274e+08 | > | max | 74.556 | 65.132 | > | min | 6.004 | 6.004 | > | mean | 8.76708 | 8.29129 | > > * benchmark result after this commit > | | roundeven | roundevenf | > |------------|--------------|--------------| > | duration | 3.76981e+09 | 3.76958e+09 | > | iterations | 6.04808e+08 | 6.20046e+08 | > | max | 84.587 | 70.642 | > | min | 6.042 | 5.928 | > | mean | 6.23308 | 6.07952 | > --- > sysdeps/x86_64/fpu/multiarch/Makefile | 5 +-- > sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c | 2 ++ > .../x86_64/fpu/multiarch/s_roundeven-sse4_1.S | 26 ++++++++++++++++ > sysdeps/x86_64/fpu/multiarch/s_roundeven.c | 31 +++++++++++++++++++ > sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c | 3 ++ > .../fpu/multiarch/s_roundevenf-sse4_1.S | 26 ++++++++++++++++ > sysdeps/x86_64/fpu/multiarch/s_roundevenf.c | 31 +++++++++++++++++++ > 7 files changed, 122 insertions(+), 2 deletions(-) > create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c > create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S > create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundeven.c > create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c > create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S > create mode 100644 sysdeps/x86_64/fpu/multiarch/s_roundevenf.c > > diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile > index 3836574f48..7e3a3f78cb 100644 > --- a/sysdeps/x86_64/fpu/multiarch/Makefile > +++ b/sysdeps/x86_64/fpu/multiarch/Makefile > @@ -1,11 +1,12 @@ > ifeq ($(subdir),math) > libm-sysdep_routines += s_floor-c s_ceil-c s_floorf-c s_ceilf-c \ > s_rint-c s_rintf-c s_nearbyint-c s_nearbyintf-c \ > - s_trunc-c s_truncf-c > + s_roundeven-c s_roundevenf-c s_trunc-c s_truncf-c > > libm-sysdep_routines += s_ceil-sse4_1 s_ceilf-sse4_1 s_floor-sse4_1 \ > s_floorf-sse4_1 s_nearbyint-sse4_1 \ > - s_nearbyintf-sse4_1 s_rint-sse4_1 s_rintf-sse4_1 \ > + s_nearbyintf-sse4_1 s_roundeven-sse4_1 \ > + s_roundevenf-sse4_1 s_rint-sse4_1 s_rintf-sse4_1 \ > s_trunc-sse4_1 s_truncf-sse4_1 > > libm-sysdep_routines += e_exp-fma e_log-fma e_pow-fma s_atan-fma \ > diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c b/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c > new file mode 100644 > index 0000000000..c7be43cb22 > --- /dev/null > +++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c > @@ -0,0 +1,2 @@ > +#define __roundeven __roundeven_c > +#include <sysdeps/ieee754/dbl-64/s_roundeven.c> > diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S > new file mode 100644 > index 0000000000..6db88a1649 > --- /dev/null > +++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S > @@ -0,0 +1,26 @@ > +/* Round to nearest integer value, rounding halfway cases to even. > + double version. > + Copyright (C) 2019 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/>. */ > + > +#include <sysdep.h> > + > + .section .text.sse4.1,"ax",@progbits > +ENTRY(__roundeven_sse41) > + roundsd $8, %xmm0, %xmm0 > + ret > +END(__roundeven_sse41) > diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven.c b/sysdeps/x86_64/fpu/multiarch/s_roundeven.c > new file mode 100644 > index 0000000000..bd777b0ca7 > --- /dev/null > +++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven.c > @@ -0,0 +1,31 @@ > +/* Multiple versions of __roundeven. > + Copyright (C) 2019 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/>. */ > + > +#include <libm-alias-double.h> > + > +#define roundeven __redirect_roundeven > +#define __roundeven __redirect___roundeven > +#include <math.h> > +#undef roundeven > +#undef __roundeven > + > +#define SYMBOL_NAME roundeven > +#include "ifunc-sse4_1.h" > + > +libc_ifunc_redirected (__redirect_roundeven, __roundeven, IFUNC_SELECTOR ()); > +libm_alias_double (__roundeven, roundeven) > diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c > new file mode 100644 > index 0000000000..72a6e7d1fb > --- /dev/null > +++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c > @@ -0,0 +1,3 @@ > +#undef __roundevenf > +#define __roundevenf __roundevenf_c > +#include <sysdeps/ieee754/flt-32/s_roundevenf.c> > diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S > new file mode 100644 > index 0000000000..74102bac0d > --- /dev/null > +++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S > @@ -0,0 +1,26 @@ > +/* Round to nearest integer value, rounding halfway cases to even. > + float version. > + Copyright (C) 2019 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/>. */ > + > +#include <sysdep.h> > + > + .section .text.sse4.1,"ax",@progbits > +ENTRY(__roundevenf_sse41) > + roundss $8, %xmm0, %xmm0 > + ret > +END(__roundevenf_sse41) > diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c b/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c > new file mode 100644 > index 0000000000..8ae1944d2b > --- /dev/null > +++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c > @@ -0,0 +1,31 @@ > +/* Multiple versions of __roundevenf. > + Copyright (C) 2019 Free Software Foundation, Inc. > + This file is part of the GNU C Library. > + > + The GNU C Library is free software; you can redistribute it and/or > + modify it under the terms of the GNU Lesser General Public > + License as published by the Free Software Foundation; either > + version 2.1 of the License, or (at your option) any later version. > + > + The GNU C Library is distributed in the hope that it will be useful, > + but WITHOUT ANY WARRANTY; without even the implied warranty of > + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU > + Lesser General Public License for more details. > + > + You should have received a copy of the GNU Lesser General Public > + License along with the GNU C Library; if not, see > + <https://www.gnu.org/licenses/>. */ > + > +#include <libm-alias-float.h> > + > +#define roundevenf __redirect_roundevenf > +#define __roundevenf __redirect___roundevenf > +#include <math.h> > +#undef roundevenf > +#undef __roundevenf > + > +#define SYMBOL_NAME roundevenf > +#include "ifunc-sse4_1.h" > + > +libc_ifunc_redirected (__redirect_roundevenf, __roundevenf, IFUNC_SELECTOR ()); > +libm_alias_float (__roundeven, roundeven) > -- > 2.28.0 >
diff --git a/sysdeps/x86_64/fpu/multiarch/Makefile b/sysdeps/x86_64/fpu/multiarch/Makefile index 3836574f48..7e3a3f78cb 100644 --- a/sysdeps/x86_64/fpu/multiarch/Makefile +++ b/sysdeps/x86_64/fpu/multiarch/Makefile @@ -1,11 +1,12 @@ ifeq ($(subdir),math) libm-sysdep_routines += s_floor-c s_ceil-c s_floorf-c s_ceilf-c \ s_rint-c s_rintf-c s_nearbyint-c s_nearbyintf-c \ - s_trunc-c s_truncf-c + s_roundeven-c s_roundevenf-c s_trunc-c s_truncf-c libm-sysdep_routines += s_ceil-sse4_1 s_ceilf-sse4_1 s_floor-sse4_1 \ s_floorf-sse4_1 s_nearbyint-sse4_1 \ - s_nearbyintf-sse4_1 s_rint-sse4_1 s_rintf-sse4_1 \ + s_nearbyintf-sse4_1 s_roundeven-sse4_1 \ + s_roundevenf-sse4_1 s_rint-sse4_1 s_rintf-sse4_1 \ s_trunc-sse4_1 s_truncf-sse4_1 libm-sysdep_routines += e_exp-fma e_log-fma e_pow-fma s_atan-fma \ diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c b/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c new file mode 100644 index 0000000000..c7be43cb22 --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven-c.c @@ -0,0 +1,2 @@ +#define __roundeven __roundeven_c +#include <sysdeps/ieee754/dbl-64/s_roundeven.c> diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S new file mode 100644 index 0000000000..6db88a1649 --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven-sse4_1.S @@ -0,0 +1,26 @@ +/* Round to nearest integer value, rounding halfway cases to even. + double version. + Copyright (C) 2019 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/>. */ + +#include <sysdep.h> + + .section .text.sse4.1,"ax",@progbits +ENTRY(__roundeven_sse41) + roundsd $8, %xmm0, %xmm0 + ret +END(__roundeven_sse41) diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundeven.c b/sysdeps/x86_64/fpu/multiarch/s_roundeven.c new file mode 100644 index 0000000000..bd777b0ca7 --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_roundeven.c @@ -0,0 +1,31 @@ +/* Multiple versions of __roundeven. + Copyright (C) 2019 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/>. */ + +#include <libm-alias-double.h> + +#define roundeven __redirect_roundeven +#define __roundeven __redirect___roundeven +#include <math.h> +#undef roundeven +#undef __roundeven + +#define SYMBOL_NAME roundeven +#include "ifunc-sse4_1.h" + +libc_ifunc_redirected (__redirect_roundeven, __roundeven, IFUNC_SELECTOR ()); +libm_alias_double (__roundeven, roundeven) diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c new file mode 100644 index 0000000000..72a6e7d1fb --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-c.c @@ -0,0 +1,3 @@ +#undef __roundevenf +#define __roundevenf __roundevenf_c +#include <sysdeps/ieee754/flt-32/s_roundevenf.c> diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S new file mode 100644 index 0000000000..74102bac0d --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf-sse4_1.S @@ -0,0 +1,26 @@ +/* Round to nearest integer value, rounding halfway cases to even. + float version. + Copyright (C) 2019 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/>. */ + +#include <sysdep.h> + + .section .text.sse4.1,"ax",@progbits +ENTRY(__roundevenf_sse41) + roundss $8, %xmm0, %xmm0 + ret +END(__roundevenf_sse41) diff --git a/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c b/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c new file mode 100644 index 0000000000..8ae1944d2b --- /dev/null +++ b/sysdeps/x86_64/fpu/multiarch/s_roundevenf.c @@ -0,0 +1,31 @@ +/* Multiple versions of __roundevenf. + Copyright (C) 2019 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/>. */ + +#include <libm-alias-float.h> + +#define roundevenf __redirect_roundevenf +#define __roundevenf __redirect___roundevenf +#include <math.h> +#undef roundevenf +#undef __roundevenf + +#define SYMBOL_NAME roundevenf +#include "ifunc-sse4_1.h" + +libc_ifunc_redirected (__redirect_roundevenf, __roundevenf, IFUNC_SELECTOR ()); +libm_alias_float (__roundeven, roundeven)