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Detect trait fulfillment in subst_and_check_impossible_predicates #96808

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Merged
merged 3 commits into from
May 10, 2022

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cjgillot
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@cjgillot cjgillot commented May 7, 2022

Split from #91743
r? @compiler-errors

@rustbot rustbot added the T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. label May 7, 2022
@rust-highfive rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label May 7, 2022
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r=me after tiny nit

@@ -432,6 +432,9 @@ pub fn impossible_predicates<'tcx>(
debug!("impossible_predicates(predicates={:?})", predicates);

let result = tcx.infer_ctxt().enter(|infcx| {
// Set tainted by errors to gracefully exit in case of overflow.
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I would mark this as HACK or something, since it's technically not using the flag correctly, right? I think it's fine otherwise.

@cjgillot cjgillot force-pushed the impossible-trait branch from af34d6d to 69e5b2f Compare May 7, 2022 16:18
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cjgillot commented May 7, 2022

@bors r=compiler-errors

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bors commented May 7, 2022

📌 Commit 69e5b2f has been approved by compiler-errors

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels May 7, 2022
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bors commented May 10, 2022

⌛ Testing commit 69e5b2f with merge 2226f19...

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bors commented May 10, 2022

☀️ Test successful - checks-actions
Approved by: compiler-errors
Pushing 2226f19 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label May 10, 2022
@bors bors merged commit 2226f19 into rust-lang:master May 10, 2022
@rustbot rustbot added this to the 1.62.0 milestone May 10, 2022
@bors bors mentioned this pull request May 10, 2022
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Finished benchmarking commit (2226f19): comparison url.

Summary: This benchmark run did not return any relevant results.

If you disagree with this performance assessment, please file an issue in rust-lang/rustc-perf.

@rustbot label: -perf-regression

@cjgillot cjgillot deleted the impossible-trait branch May 11, 2022 20:43
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6 participants