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From: "ibuclaw at gdcproject dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug d/96869] __vectors unsupported in hardware should be rejected
 at compile-time
Date: Mon, 31 Aug 2020 20:23:58 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96869

--- Comment #2 from Iain Buclaw <ibuclaw at gdcproject dot org> ---
(In reply to Andrew Pinski from comment #1)
> Hmmm, so you dont want to allow generic vector types? This is unlike GNU
> c/C++.

Correct, the D spec has had the following entry added.

> Implementation Defined: Which vector types are supported depends
> on the target. The implementation is expected to only support the
> vector types that are implemented in the target's hardware.

I could go one further and reject vector expressions not supported in hardw=
are,
but I don't think that kind of information is readily available in a target
hook.=