Update ggml-common.h

Wrap the overloads in an inline include guard - prevents re-definitions

Author: Thireus

ggml/src/ggml-common.h

@@ -772,6 +772,9 @@ static_assert(sizeof(block_iq5_ks_r4) == 4*sizeof(block_iq5_ks), "wrong iq5_ks_r
 #ifdef _MSC_VER
 #include <immintrin.h>
 
+#ifndef GGML_SIMD_OPERATORS_DEFINED
+#define GGML_SIMD_OPERATORS_DEFINED
+
 // AVX-512 integer bitwise operators
 inline __m512i operator|(const __m512i& a, const __m512i& b) { return _mm512_or_si512(a, b); }
 inline __m512i operator&(const __m512i& a, const __m512i& b) { return _mm512_and_si512(a, b); }
@@ -782,13 +785,16 @@ inline __m256i operator|(const __m256i& a, const __m256i& b) { return _mm256_or_
 inline __m256i operator&(const __m256i& a, const __m256i& b) { return _mm256_and_si256(a, b); }
 inline __m256i operator^(const __m256i& a, const __m256i& b) { return _mm256_xor_si256(a, b); }
 
+// NEON
 #ifdef __ARM_NEON
 #include <arm_neon.h>
 inline uint8x16_t operator|(uint8x16_t a, uint8x16_t b) { return vorrq_u8(a, b); }
 inline uint8x16_t operator&(uint8x16_t a, uint8x16_t b) { return vandq_u8(a, b); }
 inline int8x16_t operator|(int8x16_t a, int8x16_t b) { return vreinterpretq_s8_u8(vorrq_u8(vreinterpretq_u8_s8(a), vreinterpretq_u8_s8(b))); }
 inline int8x16_t operator&(int8x16_t a, int8x16_t b) { return vreinterpretq_s8_u8(vandq_u8(vreinterpretq_u8_s8(a), vreinterpretq_u8_s8(b))); }
 #endif
+
+#endif // GGML_SIMD_OPERATORS_DEFINED
 #endif
 #endif
 // --- End MSVC SIMD operator overloads ---