[Bug target/63892] [5 Regression] gcc.dg/sibcall-3.c fails on darwin with -m32

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63892

--- Comment #6 from Martin Liška <marxin at gcc dot gnu.org> ---
Created attachment 34817
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=34817&action=edit
Fixed IPA ICF hooks

Hello Jakub.

Your patch in #c4 is correct, assert is caused due to wrong placement of
unregister hooks. Please see the patch, I tested on my x86_64-linux-pc machine
(where I return false in target_supports_symbol_aliases_p) and it works me.

Thanks,
Martin