Method mark_block

include/mkpivm/bytecode.h:34–36

record this cursor as the start of IR block_id

            // record this cursor as the start of IR block_id
            void mark_block(std::uint32_t block_id) {
                block_offsets_[block_id] = buf_.size();
            }

            std::uint32_t block_offset(std::uint32_t block_id) const {
                auto it = block_offsets_.find(block_id);