llama.cpp

b66df9d9 - CUDA: fix build error from ambiguous __half conversions in conv2d (#15690)

CUDA: fix build error from ambiguous __half conversions in conv2d (#15690) * CUDA: fix build error from ambiguous __half conversions in conv2d Building conv2d with half precision failed because `__half` defines multiple implicit conversion operators (to float, int, short, etc.), causing ambiguous overload resolution when multiplying with float. Introduce a templated `to_float` helper that explicitly converts `__half` via `__half2float`, while passing through float unchanged. Use this helper in conv2d accumulation to ensure unambiguous and correct promotion to float. Fixes some build errors with half-precision kernels on CUDA. ggml-ci * CUDA: Replace custom to_float helper with unified ggml_cuda_cast and add half‑>float conversion * CUDA: Add missing convert.cuh header * CUDA: remove unnecessary extension in ggml_cuda_cast * CUDA: Address review comment, remove second type template argument