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Performance-portable, length-agnostic SIMD with runtime dispatch
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Updated Undefined implementation on NEON/PPC/Z14 #2195

Closed johnplatts closed 1 month ago

johnplatts commented 1 month ago

Updated Undefined(d) on NEON/PPC/Z14 to use the __builtin_nondeterministic_value intrinsic that was added in Clang 17 if available.

__builtin_nondeterministic_value(Zero(d).raw) is equivalent to SSE2 _mm_undefined_si128(), _mm_undefined_ps(), or _mm_undefined_pd().