Method attach_block_param

cranelift/codegen/src/ir/dfg.rs:1345–1356

Append an existing value to `block`'s parameters. The appended value can't already be attached to something else. In almost all cases, you should be using `append_block_param()` instead of this method.

(&mut self, block: Block, param: Value)

    ///
    /// In almost all cases, you should be using `append_block_param()` instead of this method.
    pub fn attach_block_param(&mut self, block: Block, param: Value) {
        debug_assert!(!self.value_is_attached(param));
        let num = self.blocks[block].params.push(param, &mut self.value_lists);
        debug_assert!(num <= u16::MAX as usize, "Too many parameters on block");
        let ty = self.value_type(param);
        self.values[param] = ValueData::Param {
            ty,
            num: num as u16,
            block,
        }
        .into();
    }

    /// Replace a block parameter with a new value of type `ty`.
    ///