Function pointwise_inputs

src/fuse_attention.cpp:45–64

TODO: Write this in matcher.hpp as a general matcher for iterating through inputs

// TODO: Write this in matcher.hpp as a general matcher for iterating through inputs
inline auto pointwise_inputs()
{
    return [](auto start, auto f) {
        std::unordered_set<instruction_ref> visited;
        fix([&](auto self, auto ins) {
            if(ins->can_eval())
                return;
            if(not visited.insert(ins).second)
                return;
            if(not ins->get_operator().attributes().contains("pointwise") and
               ins->get_operator().name() != "reshape")
            {
                f(ins);
                return;
            }
            for(auto input : ins->inputs())
                self(input);
        })(start);
    };
}

struct find_attention
{