mbedtls/library/sha512.c

17  * The intrinsic declaration are guarded by predefined ACLE macros in clang:
57  * can't always detect __ARM_FEATURE_SHA512 (notably clang 7-12).
62  * Clang < 7 won't work at all (lacks the sha512 instructions)
63  * Clang 7-12 don't have intrinsics (but we work around that with inline
65  * Clang == 13.0.0 same as clang 12 (only seen on macOS)
66  * Clang >= 13.0.1 has __ARM_FEATURE_SHA512 and intrinsics
69        /* Test Clang first, as it defines __GNUC__ */
76 #          pragma clang attribute push (__attribute__((target("sha3"))), apply_to=function)
81 #          error "A more recent Clang is required for MBEDTLS_SHA512_USE_A64_CRYPTO_*"
83 #          pragma clang attribute push (__attribute__((target("sha3"))), apply_to=function)
95 #        error "Only GCC and Clang supported for MBEDTLS_SHA512_USE_A64_CRYPTO_*"
578 #pragma clang attribute pop