https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67785
Bug ID: 67785 Summary: irrevocable-3.c: transaction_callable does nothing on external declaration Product: gcc Version: 6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: jason at gcc dot gnu.org CC: aldyh at gcc dot gnu.org, rth at gcc dot gnu.org, torvald at gcc dot gnu.org Target Milestone: --- In gcc.dg/tm/irrevocable-3.c: extern void bar(void) __attribute__((transaction_callable)); void foo() { __transaction_relaxed { bar(); } } The transaction_callable attribute seems to have no effect; the transaction goes irrevocable and calls the non-transaction entry point for bar whether or not it is present. Shouldn't the transaction call the TM clone if _ITM_beginTransaction says to run instrumented code? If not, what is the point of the attribute?