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Auto merge of #83314 - Aaron1011:print-unstable-value, r=lcnr

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Debug-print result when an unstable fingerprint is detected

Helps with issues like #83311

I had previously tried to do this in https://github.com/rust-lang/rust/pull/80692, but it had a significant performance impact (even though the code was never actually run). Hopefully, this will be better now that https://github.com/rust-lang/rust/pull/79100 has been merged.
This commit is contained in:
bors 2021-03-20 16:20:21 +00:00
commit 61edfd591c
1 changed files with 1 additions and 1 deletions
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compiler/rustc_query_system/src/query/plumbing.rs
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@ -590,7 +590,7 @@ fn incremental_verify_ich<CTX, K, V: Debug>(
let old_hash = tcx.dep_graph().fingerprint_of(dep_node_index);
assert!(new_hash == old_hash, "found unstable fingerprints for {:?}", dep_node,);
assert!(new_hash == old_hash, "found unstable fingerprints for {:?}: {:?}", dep_node, result);
}
fn force_query_with_job<C, CTX>(