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[tracking issue] warnings on long running constant evaluations #49980
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A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lintsC-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFCT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.
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A-const-evalArea: Constant evaluation, covers all const contexts (static, const fn, ...)Area: Constant evaluation, covers all const contexts (static, const fn, ...)A-diagnosticsArea: Messages for errors, warnings, and lintsArea: Messages for errors, warnings, and lintsC-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFCT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.
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#49947 introduces a warning (removing the previous hard error).
This warning is currently unsilenceable and should probably become a lint. For simplicity (#49947 needs to be backported to beta) this has not been done.
"When" the warning appears is deterministic, but depends on MIR, so it might change between versions of rustc.