https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96394
--- Comment #9 from Sergei Trofimovich <slyfox at gcc dot gnu.org> --- (In reply to Sergei Trofimovich from comment #8) > Might end up being caused by the same bug in PR96913: TOPN streaming > from/for shared libraries is incorrect. > > Proposed patch: > https://gcc.gnu.org/pipermail/gcc-patches/2020-September/553320.html The patch is not enough to fix the ICE. It only converts gcc-11's hangup to the ICE (as as gcc-10). Here is the somewhat selfcontained reproducer of the original bug: https://dev.gentoo.org/~slyfox/bugs/96394-pgo-ipa-ICE/tauthon-repro- gcc-10.tar.bz2 (13MB) The result on gcc-11 with above gcc patch: $ LANG=C ./try.bash ... < takes a while > during IPA pass: inline ../tauthon-2.8.2/Modules/parsermodule.c:3760:1: internal compiler error: in add_new_edges_to_heap, at ipa-inline.c:1754 3760 | } | ^ 0x5ef2b3 add_new_edges_to_heap /usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/ipa-inline.c:1754 0x1429b89 inline_small_functions /usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/ipa-inline.c:2218 0x1429b89 ipa_inline /usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/ipa-inline.c:2697 0x1429b89 execute /usr/src/debug/sys-devel/gcc-11.0.0_pre9999/gcc-11.0.0_pre9999/gcc/ipa-inline.c:3099
