diff options
Diffstat (limited to 'sysdeps/x86_64/isa-default-impl.h')
| -rw-r--r-- | sysdeps/x86_64/isa-default-impl.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/sysdeps/x86_64/isa-default-impl.h b/sysdeps/x86_64/isa-default-impl.h new file mode 100644 index 0000000000..34634668e5 --- /dev/null +++ b/sysdeps/x86_64/isa-default-impl.h @@ -0,0 +1,49 @@ +/* Utility for including proper default function based on ISA level + 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/>. */ + +#include <isa-level.h> + +#ifndef DEFAULT_IMPL_V1 +# error "Must have at least ISA V1 Version" +#endif + +#ifndef DEFAULT_IMPL_V2 +# define DEFAULT_IMPL_V2 DEFAULT_IMPL_V1 +#endif + +#ifndef DEFAULT_IMPL_V3 +# define DEFAULT_IMPL_V3 DEFAULT_IMPL_V2 +#endif + +#ifndef DEFAULT_IMPL_V4 +# define DEFAULT_IMPL_V4 DEFAULT_IMPL_V3 +#endif + +#if MINIMUM_X86_ISA_LEVEL == 1 +# define ISA_DEFAULT_IMPL DEFAULT_IMPL_V1 +#elif MINIMUM_X86_ISA_LEVEL == 2 +# define ISA_DEFAULT_IMPL DEFAULT_IMPL_V2 +#elif MINIMUM_X86_ISA_LEVEL == 3 +# define ISA_DEFAULT_IMPL DEFAULT_IMPL_V3 +#elif MINIMUM_X86_ISA_LEVEL == 4 +# define ISA_DEFAULT_IMPL DEFAULT_IMPL_V4 +#else +# error "Unsupported ISA Level!" +#endif + +#include ISA_DEFAULT_IMPL |