113         let first_block = func.layout.entry_block().unwrap();  in new()
114         let first_inst = func.layout.first_inst(first_block).unwrap();  in new()
129             func.layout.remove_inst(prev_inst);  in mutate()
130             let msg = if func.layout.block_insts(prev_block).next().is_none() {  in mutate()
132                 func.layout.remove_block(prev_block);  in mutate()
150         let first_block = func.layout.entry_block().unwrap();  in new()
151         let first_inst = func.layout.first_inst(first_block).unwrap();  in new()
240         let first_block = func.layout.entry_block().unwrap();  in new()
241         let first_inst = func.layout.first_inst(first_block).unwrap();  in new()
277         let first_block = func.layout.entry_block().unwrap();  in new()
278         let first_inst = func.layout.first_inst(first_block).unwrap();  in new()
295             let first_block = func.layout.entry_block().unwrap();  in mutate()
304             let last_inst_of_first_block = func.layout.last_inst(first_block).unwrap();  in mutate()
305             func.layout.remove_inst(prev_inst);  in mutate()
306             func.layout.insert_inst(prev_inst, last_inst_of_first_block);  in mutate()
325             block: func.layout.entry_block().unwrap(),  in new()
336         func.layout.next_block(self.block).map(|next_block| {  in mutate()
338             while let Some(inst) = func.layout.last_inst(self.block) {  in mutate()
339                 func.layout.remove_inst(inst);  in mutate()
341             func.layout.remove_block(self.block);  in mutate()
359         let first_block = func.layout.entry_block().unwrap();  in new()
374             self.block = func.layout.next_block(self.block)?;  in mutate()
384         let first_inst = func.layout.first_inst(self.block).unwrap();  in mutate()
403         if Some(self.block) == func.layout.entry_block() {  in mutate()
439                 for block in func.layout.blocks() {  in mutate()
440                     for inst in func.layout.block_insts(block) {  in mutate()
489                 for block in func.layout.blocks() {  in mutate()
490                     for inst in func.layout.block_insts(block) {  in mutate()
538                 for block in func.layout.blocks() {  in mutate()
539                     for inst in func.layout.block_insts(block) {  in mutate()
579                 for block in func.layout.blocks() {  in mutate()
580                     for inst in func.layout.block_insts(block) {  in mutate()
641             block: func.layout.entry_block().unwrap(),  in new()
653         let block = match func.layout.next_block(self.block) {  in mutate()
709         func.layout.remove_inst(pred.inst);  in mutate()
712         while let Some(inst) = func.layout.first_inst(block) {  in mutate()
713             func.layout.remove_inst(inst);  in mutate()
714             func.layout.append_inst(inst, pred.block);  in mutate()
718         func.layout.remove_block(block);  in mutate()
766     if let Some(next_inst) = func.layout.next_inst(*inst) {  in next_inst_ret_prev()
770     if let Some(next_block) = func.layout.next_block(*block) {  in next_inst_ret_prev()
772         *inst = func.layout.first_inst(*block).expect("no inst");  in next_inst_ret_prev()
779     func.layout.blocks().count()  in block_count()
783     func.layout  in inst_count()
785         .map(|block| func.layout.block_insts(block).count())  in inst_count()
969             let contains_call = func.layout.blocks().any(|block| {  in check_for_crash()
970                 func.layout  in check_for_crash()