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From: "rearnsha at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/106279] reload problem on arm iwmmxt
Date: Thu, 01 Sep 2022 13:01:44 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D106279

Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2022-09-01
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #4 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
In a general cross compiler you need: -march=3Diwmmxt -mfpu=3Dvfp -mfloat-a=
bi=3Dhard
to reproduce.

This seems to need a combination of VFP, iWMMX and the hard-float ABI.  I d=
on't
think we've ever claimed to support this.  Whilst there may be a few devices
with both iWMMX and VFP present, I think that's mostly for backwards
compatibility.

So I think we should resolve this as WONTFIX, but it would be nice if the
compiler could reject this upfront rather than ICEing later on.=