fix alignemnt test

Author: meiravgri

src/VecSim/spaces/IP_space.cpp

@@ -242,7 +242,8 @@ dist_func_t<float> Cosine_INT8_GetDistFunc(size_t dim, unsigned char *alignment,
 #ifdef OPT_AVX512_F_BW_VL_VNNI
     if (features.avx512f && features.avx512bw && features.avx512vl && features.avx512vnni) {
         // Align to vector memory size, including the norm at the end of the vector.
-        if (dim % 32 + sizeof(float) == 0) // no point in aligning if we have an offsetting residual
+        if ((dim + sizeof(float)) % 32 ==
+            0) // no point in aligning if we have an offsetting residual
             *alignment = 32 * sizeof(int8_t); // align to 256 bits.
         return Choose_INT8_Cosine_implementation_AVX512F_BW_VL_VNNI(dim);
     }

tests/unit/test_spaces.cpp

@@ -1000,7 +1000,8 @@ TEST_P(INT8SpacesOptimizationTest, INT8CosineTest) {
     *(float *)(v2 + dim) = test_utils::compute_norm(v2, dim);
     auto expected_alignment = [](size_t reg_bit_size, size_t dim) {
         size_t elements_in_reg = reg_bit_size / sizeof(int8_t) / 8;
-        return (dim % elements_in_reg == 0) ? elements_in_reg * sizeof(int8_t) : 0;
+        return ((dim + sizeof(float)) % elements_in_reg == 0) ? elements_in_reg * sizeof(int8_t)
+                                                              : 0;
     };
 
     dist_func_t<float> arch_opt_func;
@@ -1018,7 +1019,7 @@ TEST_P(INT8SpacesOptimizationTest, INT8CosineTest) {
         optimization.avx512f = optimization.avx512bw = optimization.avx512vl =
             optimization.avx512vnni = 0;
 
-        ASSERT_EQ(alignment, 2141);
+        // ASSERT_EQ(alignment, 2141)<< "alignemt for dim = " << dim;
     }
 #endif
     unsigned char alignment = 0;