ICE in rollup  #94523

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1. Dylan-DPC

   added

   I-ICEIssue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️Issue: The compiler panicked, giving an Internal Compilation Error (ICE) ❄️

   T-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.

   C-bugCategory: This is a bug.Category: This is a bug.

   on Mar 2, 2022
2. Urgau commented on Mar 2, 2022

   

   Urgau

   on Mar 2, 2022

   Last edited by Urgau

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   I am able to reproduce the issue with this code and rustc -Z unstable-options --check-cfg=names():

   macro_rules! aa {
       () => {
           fn gg() {
               #[cfg(crossbeam_loom)]
               {
                   let _ = val;
                   unimplemented!("loom does not support non-atomic atomic ops");
               }
           }
       };
   }
   
   fn main() {
       aa!();
   }

   And it's combination of #94433 ("introduce" the ICE, preexisting issue) and #94298 (trigger the lint which trigger the ICE).
3. Urgau commented on Mar 2, 2022

   

   Urgau

   on Mar 2, 2022

   Member

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   Further reduced to:

   fn main() {
       #[cfg(crossbeam_loom)]
       {}
   }
4. Dylan-DPC

   added 5 commits that reference this issue on Mar 3, 2022

   Rollup merge of rust-lang#94554 - Urgau:stmt-node-id-ice, r=petrochenkov

   ...

   2f84a84

   Rollup merge of rust-lang#94554 - Urgau:stmt-node-id-ice, r=petrochenkov

   ...

   31eed28
5. matthiaskrgr

   added 2 commits that reference this issue on Mar 3, 2022

   Rollup merge of rust-lang#94554 - Urgau:stmt-node-id-ice, r=petrochenkov

   ...

   7ea81d6

   Rollup merge of rust-lang#94554 - Urgau:stmt-node-id-ice, r=petrochenkov

   ...

   26cbf91
6. bors

   closed this as completedin 26cbf91on Mar 4, 2022