Summary: [trans-mem] save/restore of thread-local data in
                    nested txns is missing
           Product: gcc
           Version: trans-mem
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c

Created attachment 24632
test case

In the attached test case, stores to x[5] and x[6] in the nested txn do not get
rolled back. This happens if the nested txn is restarted by the TM runtime
library, or if the nested txn is aborted via __transaction_cancel.

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