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From: "ibuclaw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug d/102837] [12 regression] Many 32-bit gdc tests FAIL
Date: Mon, 25 Oct 2021 21:37:20 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D102837

ibuclaw at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ibuclaw at gcc dot gnu.org

--- Comment #4 from ibuclaw at gcc dot gnu.org ---
(In reply to ro@CeBiTec.Uni-Bielefeld.DE from comment #3)
> Actually, it's
>=20
> commit efa5449a094d3887e124d400ff0410af2c745b2d
> Author: Iain Buclaw <ibuclaw@gdcproject.org>
> Date:   Sat Sep 25 19:50:52 2021 +0200
>=20
>     libphobos: Give _Unwind_Exception an alignment that best resembles
> __attribute__((aligned))
>=20=20=20=20=20
> in particular
>=20
> +else version (X86)      private enum __aligned__ =3D 16;
>=20
> I don't yet see where/how struct _Unwind_Execption is allocated to
> guarantee that alignment.  Depending on the answer PR libstdc++/77691
> (32-bit Solaris/x86 malloc only returns 8-byte aligned memory) or the
> fact that the stack is only 4-byte aligned following the i386 psABI) may
> be relevant.
i386 psABI would likely be the most relevant detail here.  I'll see if expo=
sing
the value of __attribute__((aligned)) to D CTFE is possible.=