[Bug target/108984] [13 Regression] LTO bootstrap causes testsuite ICE

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108984

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |jakub at gcc dot gnu.org

--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
There is redirect_to_unreachable and a couple of other places (though at least
half of them are related to devirtualization which shouldn't be happening
here):
grep builtin_decl_unreachable ipa*
ipa.cc:     target = cgraph_node::get_create (builtin_decl_unreachable ());
ipa-fnsummary.cc:    = cgraph_node::get_create (builtin_decl_unreachable ());
ipa-prop.cc:      target = builtin_decl_unreachable ();
ipa-prop.cc:  tree new_target = builtin_decl_unreachable ();
So, I'd add a breakpoint on builtin_decl_unreachable and see where it is called
for this code.