Method prev_inst

cranelift/codegen/src/cursor.rs:520–524

Move to the previous instruction in the same block and return it. - If the cursor was positioned after a block, go to the last instruction in that block. - If there are no more instructions in the block, go to the `Before(block)` position and return `None`. - If the cursor wasn't pointing anywhere, keep doing that. This method will never move the cursor to a different block. # Examples The `pr

(&mut self)

    /// }
    /// ```
    fn prev_inst(&mut self) -> Option<ir::Inst> {
        let pos = self.prev_inst_position()?;
        self.set_position(pos);
        self.current_inst()
    }

    /// Insert an instruction at the current position.
    ///