test 2 with reviewed comments

Author: qnixsynapse

ggml/src/ggml-cuda/conv2d.cu

@@ -1,4 +1,5 @@
 #include "conv2d.cuh"
+#include "convert.cuh"
 
 struct conv_params {
     const int64_t IW, IH;
@@ -17,15 +18,6 @@ struct kernel_bounds {
     int64_t x_min, x_max;
 };
 
-template<typename T>
-__device__ __forceinline__ float to_float(const T& val) {
-    if constexpr (std::is_same_v<T, __half>) {
-        return __half2float(val);
-    } else {
-        return val;  // Assumes T is float
-    }
-}
-
 __device__ __forceinline__ int64_t max64(int64_t a, int64_t b) {
     return (a > b) ? a : b;
 }
@@ -104,7 +96,7 @@ static __global__ void conv2d_kernel(const float * __restrict__ input,
 
                 const float input_val = input[Layout::input_index(n, c_in, in_y, in_x, P)];
                 const T kernel_val = kernel[Layout::kernel_index(c_out, c_in, ky, kx, P)];
-                acc += (input_val * to_float(kernel_val));
+                acc += (input_val * ggml_cuda_cast<float, T>(kernel_val));
             }
         }
     }