optional arm feature complex

qbisi · qbisi · commit 1d93dfba00f2 · 2024-11-16T22:22:21.000+08:00
diff --git a/libsrc/core/simd_arm64.hpp b/libsrc/core/simd_arm64.hpp
@@ -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)

Original file line number	Diff line number	Diff line change
`@@ -154,6 +154,7 @@ namespace ngcore`
`154`	`154`	`return FNMA(SIMD<double,2> (a), b, c);`
`155`	`155`	`}`
`156`	`156`
	`157`	`+#ifdef __ARM_FEATURE_COMPLEX`
`157`	`158`	`// ARM complex mult:`
`158`	`159`	`// https://arxiv.org/pdf/1901.07294.pdf`
`159`	`160`	`// c += a*b (a0re, a0im, a1re, a1im, ...),`
`@@ -162,6 +163,7 @@ namespace ngcore`
`162`	`163`	`auto tmp = vcmlaq_f64(c.Data(), a.Data(), b.Data()); // are * b`
`163`	`164`	`c = vcmlaq_rot90_f64(tmp, a.Data(), b.Data()); // += iaim b`
`164`	`165`	`}`
	`166`	`+#endif`
`165`	`167`
`166`	`168`
`167`	`169`	`NETGEN_INLINE SIMD<double,2> operator+ (SIMD<double,2> a, SIMD<double,2> b)`