Method is_pristine

cranelift/frontend/src/frontend.rs:800–802

Returns `true` if and only if no instructions have been added since the last call to [`switch_to_block`](Self::switch_to_block).

(&self, block: Block)

    /// Returns `true` if and only if no instructions have been added since the last call to
    /// [`switch_to_block`](Self::switch_to_block).
    fn is_pristine(&self, block: Block) -> bool {
        self.func_ctx.status[block] == BlockStatus::Empty
    }

    /// Returns `true` if and only if a terminator instruction has been inserted since the
    /// last call to [`switch_to_block`](Self::switch_to_block).