diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/fpu/multiarch')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c new file mode 100644 index 0000000000..330fe965a6 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/fpu/multiarch/s_llrintf.c @@ -0,0 +1,46 @@ +/* Multiple versions of llrintf. + Copyright (C) 2017 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 + <http://www.gnu.org/licenses/>. */ +/* Redefine lrintf/__lrintf so that the compiler won't complain about the type + mismatch with the IFUNC selector in strong_alias below. */ +#define lrintf __hidden_lrintf +#define __lrintf __hidden___lrintf + +#include <math.h> +#undef lrintf +#undef __lrintf +#include "init-arch.h" + +extern __typeof (__llrintf) __llrint_ppc64 attribute_hidden; +extern __typeof (__llrintf) __llrint_power6x attribute_hidden; +extern __typeof (__llrintf) __llrint_power8 attribute_hidden; + +/* The ppc64 ABI passes float and double parameters in 64bit floating point + registers (at least up to a point) as IEEE binary64 format, so effectively + of "double" type. Both l[l]rint and l[l]rintf return long type. So these + functions have identical signatures and functionality, and can use a + single implementation. */ +libc_ifunc (__llrintf, + (hwcap2 & PPC_FEATURE2_ARCH_2_07) + ? __llrint_power8 : + (hwcap & PPC_FEATURE_POWER6_EXT) + ? __llrint_power6x + : __llrint_ppc64); + +weak_alias (__llrintf, llrintf) +strong_alias (__llrintf, __lrintf) +weak_alias (__lrintf, lrintf) |