diff options
Diffstat (limited to 'sysdeps/x86/isa-ifunc-macros.h')
| -rw-r--r-- | sysdeps/x86/isa-ifunc-macros.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/sysdeps/x86/isa-ifunc-macros.h b/sysdeps/x86/isa-ifunc-macros.h new file mode 100644 index 0000000000..ba6826d518 --- /dev/null +++ b/sysdeps/x86/isa-ifunc-macros.h @@ -0,0 +1,70 @@ +/* Common ifunc selection utils + All versions must be listed in ifunc-impl-list.c. + 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/>. */ + +#ifndef _ISA_IFUNC_MACROS_H +#define _ISA_IFUNC_MACROS_H 1 + +#include <isa-level.h> +#include <sys/cdefs.h> +#include <stdlib.h> + +/* Only include at the level of the minimum build ISA or higher. I.e + if built with ISA=V1, then include all implementations. On the + other hand if built with ISA=V3 only include V3/V4 + implementations. If there is no implementation at or above the + minimum build ISA level, then include the highest ISA level + implementation. */ +#if MINIMUM_X86_ISA_LEVEL <= 4 +# define X86_IFUNC_IMPL_ADD_V4(...) IFUNC_IMPL_ADD (__VA_ARGS__) +#endif +#if MINIMUM_X86_ISA_LEVEL <= 3 +# define X86_IFUNC_IMPL_ADD_V3(...) IFUNC_IMPL_ADD (__VA_ARGS__) +#endif +#if MINIMUM_X86_ISA_LEVEL <= 2 +# define X86_IFUNC_IMPL_ADD_V2(...) IFUNC_IMPL_ADD (__VA_ARGS__) +#endif +#if MINIMUM_X86_ISA_LEVEL <= 1 +# define X86_IFUNC_IMPL_ADD_V1(...) IFUNC_IMPL_ADD (__VA_ARGS__) +#endif + +#ifndef X86_IFUNC_IMPL_ADD_V4 +# define X86_IFUNC_IMPL_ADD_V4(...) +#endif +#ifndef X86_IFUNC_IMPL_ADD_V3 +# define X86_IFUNC_IMPL_ADD_V3(...) +#endif +#ifndef X86_IFUNC_IMPL_ADD_V2 +# define X86_IFUNC_IMPL_ADD_V2(...) +#endif +#ifndef X86_IFUNC_IMPL_ADD_V1 +# define X86_IFUNC_IMPL_ADD_V1(...) +#endif + +#define X86_ISA_CPU_FEATURE_CONST_CHECK_ENABLED(name) \ + ((name##_X86_ISA_LEVEL) <= MINIMUM_X86_ISA_LEVEL) + +#define X86_ISA_CPU_FEATURE_USABLE_P(ptr, name) \ + (X86_ISA_CPU_FEATURE_CONST_CHECK_ENABLED (name) \ + || CPU_FEATURE_USABLE_P (ptr, name)) + +#define X86_ISA_CPU_FEATURES_ARCH_P(ptr, name) \ + (X86_ISA_CPU_FEATURE_CONST_CHECK_ENABLED (name) \ + || CPU_FEATURES_ARCH_P (ptr, name)) + +#endif |