duskphantom_middle/transform/
loop_depth.rs

1// Copyright 2024 Duskphantom Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14//
15// SPDX-License-Identifier: Apache-2.0
16
17use crate::analysis::loop_tools::{LoopForest, LoopTree};
18
19use anyhow::{Ok, Result};
20
21#[derive(Default)]
22pub struct LoopDepthTracer {}
23
24impl LoopDepthTracer {
25    pub fn run(loop_forest: &LoopForest) -> Result<()> {
26        for loop_tree in loop_forest.forest.iter() {
27            Self::run_a_loop(1, loop_tree)?;
28        }
29        Ok(())
30    }
31
32    fn run_a_loop(depth: usize, loop_tree: &LoopTree) -> Result<()> {
33        for mut bb in loop_tree.blocks.iter().cloned() {
34            bb.depth = depth;
35        }
36
37        for sub_loop in loop_tree.sub_loops.iter() {
38            Self::run_a_loop(depth + 1, sub_loop)?;
39        }
40        Ok(())
41    }
42}