Bitcoin full node and query server

Apr 16, 2026

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Huddle with pmienk, eynhaender, evoskuil, Rowan Voskuil, Marnix · 275 min15:55

evoskuil18:16

/// Map standard XCPU defines for intrinsics usage.
/// vc++: There are no native flags for SHA and SSE41.
#if defined(HAVE_XCPU)
    // -msha
    // vc++: SHANI not independently configurable (requires custom option).
    #if defined(__SHA__)
        #define HAVE_SHANI
        #define HAVE_SHA
    #endif
    // -mavx512bw
    // vc++: Advanced Vector Extensions 512 (X86/X64) (/arch:AVX512)
    #if defined(__AVX512BW__)
        #define HAVE_AVX512
        #define HAVE_512
    #endif
    // -mavx2
    // vc++: Advanced Vector Extensions 2 (X86/X64) (/arch:AVX2)
    #if defined(__AVX2__)
        #define HAVE_AVX2
        #define HAVE_256
    #endif
    // -msse4.1
    // vc++: Use Advanced Vector Extensions (X86/X64) (/arch:AVX).
    #if defined(__SSE4_1__)
        #define HAVE_SSE4
        #define HAVE_128
    #endif
#endif

/// Map standard ARM defines for intrinsics usage. 
/// SVE maximum width is not detectable (requires custom options).
#if defined(HAVE_ARM)
    // -march=armv8-a+crypto
    // Requires 64 bit build.
    #if defined(__ARM_FEATURE_CRYPTO)
        #define HAVE_CRYPTO
        #define HAVE_SHA
    #endif
    // -march=armv8-a+sve
    // Requires 64 bit build.
    #if defined(__ARM_FEATURE_SVE)
        #define HAVE_SVE
    #endif
    // -march=armv8-a (64 bit)
    // -march=armv7-a -mfpu=neon -mfloat-abi=hard (32 bit)
    #if defined(__ARM_NEON)
        #define HAVE_NEON
        #define HAVE_128
    #endif
#endif