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from b2fb18e470d libstdc++: Provide conversion between atomic_ref of similar types. new b40f769c2f6 x86: Add AMD znver6 processor support

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Summary of changes: gcc/common/config/i386/cpuinfo.h | 25 ++++++ gcc/common/config/i386/i386-common.cc | 26 +++++- gcc/common/config/i386/i386-cpuinfo.h | 2 + gcc/common/config/i386/i386-isas.h | 1 + gcc/config.gcc | 13 ++- gcc/config/i386/avx512bmmintrin.h | 89 +++++++++++++++++++ gcc/config/i386/avx512bmmvlintrin.h | 118 ++++++++++++++++++++++++++ gcc/config/i386/cpuid.h | 3 + gcc/config/i386/driver-i386.cc | 5 ++ gcc/config/i386/i386-builtin.def | 8 ++ gcc/config/i386/i386-c.cc | 9 ++ gcc/config/i386/i386-isa.def | 1 + gcc/config/i386/i386-options.cc | 10 ++- gcc/config/i386/i386.cc | 2 +- gcc/config/i386/i386.h | 3 + gcc/config/i386/i386.md | 2 +- gcc/config/i386/i386.opt | 4 + gcc/config/i386/i386.opt.urls | 3 + gcc/config/i386/immintrin.h | 4 + gcc/config/i386/sse.md | 57 +++++++++++++ gcc/config/i386/x86-tune-sched.cc | 2 + gcc/config/i386/x86-tune.def | 18 ++-- gcc/doc/extend.texi | 6 ++ gcc/doc/invoke.texi | 20 ++++- gcc/testsuite/g++.target/i386/mv29.C | 6 ++ gcc/testsuite/gcc.target/i386/avx512bmm-1.c | 26 ++++++ gcc/testsuite/gcc.target/i386/avx512bmmvl-1.c | 35 ++++++++ gcc/testsuite/gcc.target/i386/funcspec-56.inc | 2 + 28 files changed, 480 insertions(+), 20 deletions(-) create mode 100644 gcc/config/i386/avx512bmmintrin.h create mode 100644 gcc/config/i386/avx512bmmvlintrin.h create mode 100644 gcc/testsuite/gcc.target/i386/avx512bmm-1.c create mode 100644 gcc/testsuite/gcc.target/i386/avx512bmmvl-1.c