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Prevent stack overflow.

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This commit is contained in:
Camille GILLOT 2023-05-08 08:48:16 +00:00
parent 2aa1c23fed
commit ccc1da247b
1 changed files with 2 additions and 1 deletions
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3
compiler/rustc_mir_dataflow/src/value_analysis.rs
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@ -37,6 +37,7 @@ use std::fmt::{Debug, Formatter};
use std::ops::Range; use std::ops::Range;
use rustc_data_structures::fx::FxHashMap; use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::stack::ensure_sufficient_stack;
use rustc_index::bit_set::BitSet; use rustc_index::bit_set::BitSet;
use rustc_index::{IndexSlice, IndexVec}; use rustc_index::{IndexSlice, IndexVec};
use rustc_middle::mir::visit::{MutatingUseContext, PlaceContext, Visitor}; use rustc_middle::mir::visit::{MutatingUseContext, PlaceContext, Visitor};
@ -774,7 +775,7 @@ impl Map {
// We manually iterate instead of using `children` as we need to mutate `self`. // We manually iterate instead of using `children` as we need to mutate `self`.
let mut next_child = self.places[root].first_child; let mut next_child = self.places[root].first_child;
while let Some(child) = next_child { while let Some(child) = next_child {
self.cache_preorder_invoke(child); ensure_sufficient_stack(|| self.cache_preorder_invoke(child));
next_child = self.places[child].next_sibling; next_child = self.places[child].next_sibling;
} }