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stevengj
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Apr 11, 2026
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Does this actually help performance these days, versus just -O3? A lot of these flag choices are pretty old.
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Updates to eight Autoconf macros which were obtained from the archive (Github repository):
ax_cc_maxopt.m4(previouslyax_cxx_maxopt.m4)ax_check_compile_flag.m4(previouslyax_check_compiler_flags.m4)ax_compiler_vendor.m4ax_gcc_archflag.m4ax_gcc_x86_cpuid.m4ax_blas.m4ax_cxx_compile_stdcxx.m4ax_openmp.m4