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optional arm feature complex

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qbisi 2024-11-16 22:20:00 +08:00
parent 69f5e8e572
commit 1d93dfba00
1 changed files with 2 additions and 0 deletions
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2
libsrc/core/simd_arm64.hpp
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@ -154,6 +154,7 @@ namespace ngcore
return FNMA(SIMD<double,2> (a), b, c);
}
#ifdef __ARM_FEATURE_COMPLEX
// ARM complex mult:
// https://arxiv.org/pdf/1901.07294.pdf
// c += a*b (a0re, a0im, a1re, a1im, ...),
@ -162,6 +163,7 @@ namespace ngcore
auto tmp = vcmlaq_f64(c.Data(), a.Data(), b.Data()); // are * b
c = vcmlaq_rot90_f64(tmp, a.Data(), b.Data()); // += i*aim * b
}
#endif
NETGEN_INLINE SIMD<double,2> operator+ (SIMD<double,2> a, SIMD<double,2> b)