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x86-64: Add vector log2/log2f implementation to libmvec

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Implement vectorized log2/log2f containing SSE, AVX, AVX2 and
AVX512 versions for libmvec as per vector ABI.  It also contains
accuracy and ABI tests for vector log2/log2f with regenerated ulps.

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
This commit is contained in:
Sunil K Pandey
2021-12-29 09:29:44 -08:00
parent 8f8566026d
commit 7e1722fec8
50 changed files with 4208 additions and 1 deletions
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math/bits/mathcalls.h
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@@ -130,7 +130,7 @@ __MATHCALL (logb,, (_Mdouble_ __x));
__MATHCALL_VEC (exp2,, (_Mdouble_ __x));
/* Compute base-2 logarithm of X. */
__MATHCALL (log2,, (_Mdouble_ __x));
__MATHCALL_VEC (log2,, (_Mdouble_ __x));
#endif