From: Rajalakshmi Srinivasaraghavan Date: Wed, 30 May 2018 16:01:27 +0000 (+0530) Subject: powerpc: Add multiarch sqrtf128 for ppc64le X-Git-Tag: glibc-2.28~242 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2c93fce76a8e672abfdf7771c97be9ea49b7222b;p=thirdparty%2Fglibc.git powerpc: Add multiarch sqrtf128 for ppc64le This patch creates ifunc for sqrtf128() to make use of new xssqrtqp instruction for POWER9 when --enable-multi-arch and --with-cpu=power8 options are used on power9 system. This is achieved by explicitly adding -mcpu=power9 flag for sqrtf128-power9. --- diff --git a/ChangeLog b/ChangeLog index 7d69df56016..40f398cde49 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,13 @@ +2018-05-30 Rajalakshmi Srinivasaraghavan + + * sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile: New file to + add w_sqrtf128-power9 and w_sqrtf128-ppc64le to libm-sysdep_routines. + * sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-power9.c: + New file. + * sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-ppc64le.c: + Likewise. + * sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128.c: Likewise. + 2018-05-29 Florian Weimer * support/Makefile (libsupport-routines): Add diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile new file mode 100644 index 00000000000..a32f3d8b81e --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/Makefile @@ -0,0 +1,6 @@ +ifeq ($(subdir),math) +libm-sysdep_routines += w_sqrtf128-power9 w_sqrtf128-ppc64le + +CFLAGS-w_sqrtf128-ppc64le.c += -mfloat128 +CFLAGS-w_sqrtf128-power9.c += -mfloat128 -mcpu=power9 +endif diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-power9.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-power9.c new file mode 100644 index 00000000000..55d93b92561 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-power9.c @@ -0,0 +1,35 @@ +/* POWER9 sqrt for _Float128 + Copyright (C) 2018 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. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + 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 + . */ + +#include + +#define __sqrtf128 __sqrtf128_power9 + +#undef declare_mgen_alias +#define declare_mgen_alias(a, b) + +#include diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-ppc64le.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-ppc64le.c new file mode 100644 index 00000000000..72f09b10174 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128-ppc64le.c @@ -0,0 +1,35 @@ +/* PPC64LE sqrt for _Float128 + Copyright (C) 2018 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. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file into + combinations with other programs, and to distribute those + combinations without any restriction coming from the use of this + file. (The Lesser General Public License restrictions do apply in + other respects; for example, they cover modification of the file, + and distribution when not linked into a combine executable.) + + 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 + . */ + +#include + +#define __sqrtf128 __sqrtf128_ppc64le + +#undef declare_mgen_alias +#define declare_mgen_alias(a, b) + +#include diff --git a/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128.c b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128.c new file mode 100644 index 00000000000..a44bf4f5ccb --- /dev/null +++ b/sysdeps/powerpc/powerpc64/le/fpu/multiarch/w_sqrtf128.c @@ -0,0 +1,31 @@ +/* Multiple versions of __sqrtf128. + Copyright (C) 2018 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 "init-arch.h" +#include + +extern __typeof (__sqrtf128) __sqrtf128_ppc64le attribute_hidden; +extern __typeof (__sqrtf128) __sqrtf128_power9 attribute_hidden; + +libc_ifunc (__sqrtf128, + (hwcap2 & PPC_FEATURE2_ARCH_3_00) + ? __sqrtf128_power9 + : __sqrtf128_ppc64le); +declare_mgen_alias (__sqrt, sqrt)