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Simon Tatham 2222cd104d AES-GCM NEON: cope with missing vaddq_p128.
In some compilers (I'm told clang 10, in particular), the NEON
intrinsic vaddq_p128 is missing, even though its input type poly128_t
is provided.

vaddq_p128 is just an XOR of two vector registers, so that's easy to
work around by casting to a more mundane type and back. Added a
configure-time test for that intrinsic, and a workaround to be used in
its absence.
2022-10-12 20:01:58 +01:00
..
2022-09-03 11:59:12 +01:00