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From: "iains at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/94359] new test case
 g++.dg/coroutines/torture/symmetric-transfer-00-basic.C fails
Date: Sat, 28 Mar 2020 09:18:16 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94359

--- Comment #4 from Iain Sandoe <iains at gcc dot gnu.org> ---
so, it seems:

rs6000_function_ok_for_sibcall ()=20

calls   rs6000_decl_ok_for_sibcall ()

which gets a NULL decl and thus this returns false


      /* Under the AIX or ELFv2 ABIs we can't allow calls to non-local
         functions, because the callee may have a different TOC pointer to
         the caller and there's no way to ensure we restore the TOC when
         we return.  */
      if (!decl || DECL_EXTERNAL (decl) || DECL_WEAK (decl)
          || !(*targetm.binds_local_p) (decl))
        return false;

=3D=3D=3D=3D

The signature of the callee is void (void *)

So not sure how to proceed here at the moment (I wonder if this works for P=
PC
on the clang impl).

The comment indicates that this is going to fail for AIX too as it stands.=