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ICE: expected usize, got Const
#113021
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cc @clubby789 |
This also ICEs on stable with the same error, so I don't think this is related to any of my recent changes at a glance. Having a look at it though |
Regression in nightly-2021-09-01 |
I suspect that might be a false positive bisect? |
ah meh, probably, if the feature gate was renamed or something, the code with the "new" feature gate might no longer trigger the ice once needed the old feature gate -_- |
Bisected to nightly-2022-11-27, probably caused by #99798.
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return unfixed len if pat has reported error - Fixes rust-lang#116186 - Fixes rust-lang#113021 This issue arises due to the creation of a fixed-length pattern, as a result of the mir body corruption. The corruption taints `tcx.eval_to_allocation_raw`, causing it to return `AlreadyReported`. Consequently, this prevents `len.try_eval_target_usize` from evaluating correctly and returns `None`. Lastly, it results in the return of `[usize; min_len]`. To rectify this issue, my approach is that to return unfixed when encountering `ErrorHandled::Reported`. Additionally, in instances of `ErrorHandled::TooGeneric`, the previous logic has been reinstated.
return unfixed len if pat has reported error - Fixes rust-lang#116186 - Fixes rust-lang#113021 This issue arises due to the creation of a fixed-length pattern, as a result of the mir body corruption. The corruption taints `tcx.eval_to_allocation_raw`, causing it to return `AlreadyReported`. Consequently, this prevents `len.try_eval_target_usize` from evaluating correctly and returns `None`. Lastly, it results in the return of `[usize; min_len]`. To rectify this issue, my approach is that to return unfixed when encountering `ErrorHandled::Reported`. Additionally, in instances of `ErrorHandled::TooGeneric`, the previous logic has been reinstated.
Rollup merge of rust-lang#117046 - bvanjoi:fix-116186, r=oli-obk return unfixed len if pat has reported error - Fixes rust-lang#116186 - Fixes rust-lang#113021 This issue arises due to the creation of a fixed-length pattern, as a result of the mir body corruption. The corruption taints `tcx.eval_to_allocation_raw`, causing it to return `AlreadyReported`. Consequently, this prevents `len.try_eval_target_usize` from evaluating correctly and returns `None`. Lastly, it results in the return of `[usize; min_len]`. To rectify this issue, my approach is that to return unfixed when encountering `ErrorHandled::Reported`. Additionally, in instances of `ErrorHandled::TooGeneric`, the previous logic has been reinstated.
Code
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rustc --version --verbose
:Error output
Backtrace
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