04f9fac660
AVX512 was disabled when GNU binutils were missing or had a known bug,
even if LLVM binutils were used for the build,
because binutils-avx512-check.sh was invoked regardless and failed.
In particular, this was the case for FreeBSD with clang (default).
Run the check only when GNU binutils are used.
Fixes: 68b1f1cda5 ("build: check AVX512 rather than binutils version")
Cc: stable@dpdk.org
Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
65 lines
2.5 KiB
Meson
65 lines
2.5 KiB
Meson
# SPDX-License-Identifier: BSD-3-Clause
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# Copyright(c) 2018 Vladimir Medvedkin <medvedkinv@gmail.com>
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# Copyright(c) 2019 Intel Corporation
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if is_windows
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build = false
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reason = 'not supported on Windows'
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subdir_done()
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endif
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sources = files('rte_fib.c', 'rte_fib6.c', 'dir24_8.c', 'trie.c')
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headers = files('rte_fib.h', 'rte_fib6.h')
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deps += ['rib']
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# compile AVX512 version if:
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# we are building 64-bit binary AND binutils can generate proper code
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if dpdk_conf.has('RTE_ARCH_X86_64') and binutils_ok
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# compile AVX512 version if either:
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# a. we have AVX512F supported in minimum instruction set baseline
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# b. it's not minimum instruction set, but supported by compiler
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#
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# in former case, just add avx512 C file to files list
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# in latter case, compile c file to static lib, using correct
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# compiler flags, and then have the .o file from static lib
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# linked into main lib.
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# check if all required flags already enabled (variant a).
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acl_avx512_flags = ['__AVX512F__','__AVX512DQ__']
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acl_avx512_on = true
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foreach f:acl_avx512_flags
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if cc.get_define(f, args: machine_args) == ''
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acl_avx512_on = false
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endif
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endforeach
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if acl_avx512_on == true
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cflags += ['-DCC_DIR24_8_AVX512_SUPPORT']
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sources += files('dir24_8_avx512.c')
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# TRIE AVX512 implementation uses avx512bw intrinsics along with
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# avx512f and avx512dq
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if cc.get_define('__AVX512BW__', args: machine_args) != ''
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cflags += ['-DCC_TRIE_AVX512_SUPPORT']
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sources += files('trie_avx512.c')
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endif
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elif cc.has_multi_arguments('-mavx512f', '-mavx512dq')
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dir24_8_avx512_tmp = static_library('dir24_8_avx512_tmp',
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'dir24_8_avx512.c',
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dependencies: static_rte_eal,
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c_args: cflags + ['-mavx512f', '-mavx512dq'])
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objs += dir24_8_avx512_tmp.extract_objects('dir24_8_avx512.c')
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cflags += ['-DCC_DIR24_8_AVX512_SUPPORT']
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# TRIE AVX512 implementation uses avx512bw intrinsics along with
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# avx512f and avx512dq
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if cc.has_argument('-mavx512bw')
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trie_avx512_tmp = static_library('trie_avx512_tmp',
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'trie_avx512.c',
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dependencies: static_rte_eal,
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c_args: cflags + ['-mavx512f', \
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'-mavx512dq', '-mavx512bw'])
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objs += trie_avx512_tmp.extract_objects('trie_avx512.c')
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cflags += ['-DCC_TRIE_AVX512_SUPPORT']
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endif
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endif
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endif
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