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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug tree-optimization/105367] [12 Regression] ICE: SIGSEGV in
 contains_struct_check (tree.h:3570) with -Ofast -mveclibabi=acml
Date: Mon, 25 Apr 2022 10:49:05 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D105367

--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Jakub Jelinek from comment #3)
> Created attachment 52864 [details]
> gcc12-pr105367-2.patch
>=20
> Variant patch (smaller, just i386 backend).  Advantage of the first one is
> that
> we can use that elsewhere later on.

This one is certainly obvious.  I'm less sure about mapping back modes to
_Float and then the corresponding library functions - can we not get into t=
he
situation choosing 'double' for SFmode (on targets where double =3D=3D floa=
t) but
the target
only having sinf() but not sin()?  I guess we have to be more clever wrt
libm.libc_has_function () and choosing the function when we have multiple
choices?=