Function canOptimizeCast

src/backend/common/cast.hpp:55–64

This function determines if consecutive cast operations should be removed from a JIT AST. This function returns true if consecutive cast operations in the JIT AST should be removed. Multiple cast operations are removed when going from a smaller type to a larger type and back again OR if the conversion is between two floating point types including complex types. Cast operations that will be remov

///
/// \returns True if the inner cast operation should be removed
constexpr bool canOptimizeCast(af::dtype outer, af::dtype inner) {
    if (isFloating(outer)) {
        if (isFloating(inner)) { return true; }
    } else {
        if (isFloating(inner)) { return true; }
        if (dtypeSize(inner) >= dtypeSize(outer)) { return true; }
    }

    return false;
}

#ifdef AF_CPU
template<typename To, typename Ti>