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Check for duplicate dep nodes when creating the index

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John Kåre Alsaker 2025-03-18 00:26:32 +01:00
parent cdbf19a6fb
commit bd8b628262
1 changed files with 8 additions and 1 deletions
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9
compiler/rustc_query_system/src/dep_graph/serialized.rs
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@ -252,7 +252,14 @@ impl SerializedDepGraph {
.collect(); .collect();
for (idx, node) in nodes.iter_enumerated() { for (idx, node) in nodes.iter_enumerated() {
index[node.kind.as_usize()].insert(node.hash, idx); if index[node.kind.as_usize()].insert(node.hash, idx).is_some() {
panic!(
"Error: A dep graph node does not have an unique index. \
Running a clean build on a nightly compiler with `-Z incremental-verify-ich` \
can help narrow down the issue for reporting. A clean build may also work around the issue.\n
DepNode: {node:?}"
)
}
} }
Arc::new(SerializedDepGraph { Arc::new(SerializedDepGraph {