https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102388
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Martin Jambor <jamb...@gcc.gnu.org>: https://gcc.gnu.org/g:1a7d452c092be42a892d00c19561af10f42410b0 commit r12-4230-g1a7d452c092be42a892d00c19561af10f42410b0 Author: Martin Jambor <mjam...@suse.cz> Date: Thu Oct 7 16:21:19 2021 +0200 ipa: Fix ICE when speculating calls from inlined functions (PR 102388) The code handling various cases which lead to call graph edge duplication (in order to update reference descriptions used to track and remove no-longer needed references) has missed one important case. When edge duplication is an effect of creating a speculative edge for an indirect edge which carries a constant jump function which had been created from a pass-through function when the edge caller has was inlined into one of its callers, the reference description attached to the function describes an edge higher up in the "inlined" clone tree and so even the new speculative edge will. Therefore we should not try to duplicate the reference description itself but rather just bump the refcount of the existing one. gcc/ChangeLog: 2021-09-22 Martin Jambor <mjam...@suse.cz> PR ipa/102388 * ipa-prop.c (ipa_edge_args_sum_t::duplicate): Also handle the case when the source reference description corresponds to a referance taken in a function src->caller is inlined to.
