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gcc13
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File _service:download_url:avx512-when-we-ask-for-it.patch of Package gcc13
gcc8 turned off all AVX512 intrinsics for -march=skylake-avx512, that is not so great --- gcc-8.1.0/gcc/config/i386/x86-tune.def~ 2018-04-16 05:59:52.000000000 +0000 +++ gcc-8.1.0/gcc/config/i386/x86-tune.def 2018-05-16 14:54:19.401210281 +0000 @@ -429,7 +429,7 @@ /* X86_TUNE_AVX256_OPTIMAL: Use 256-bit AVX instructions instead of 512-bit AVX instructions in the auto-vectorizer. */ -DEF_TUNE (X86_TUNE_AVX256_OPTIMAL, "avx256_optimal", m_CORE_AVX512) +DEF_TUNE (X86_TUNE_AVX256_OPTIMAL, "avx256_optimal", 0U) /*****************************************************************************/ /* Historical relics: tuning flags that helps a specific old CPU designs */
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