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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug sanitizer/112336] fsanitize=address vs _BitInt with a non-mode
 size (smaller than max mode size)
Date: Wed, 01 Nov 2023 15:31:55 +0000
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X-Bugzilla-Component: sanitizer
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X-Bugzilla-Keywords: ice-on-valid-code
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112336

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|middle-end                  |sanitizer
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2023-11-01
            Summary|ICE in gen_reg_rtx          |fsanitize=3Daddress vs
                   |emit-rtl.cc:1208 while      |_BitInt with a non-mode
                   |compiling "unsigned         |size (smaller than max mode
                   |_BitInt(1) Foo;" with       |size)
                   |-fsanitize=3Daddress          |
                 CC|                            |dodji at gcc dot gnu.org,
                   |                            |dvyukov at gcc dot gnu.org,
                   |                            |kcc at gcc dot gnu.org,
                   |                            |marxin at gcc dot gnu.org,
                   |                            |pinskia at gcc dot gnu.org

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.

8, 16, 32, and 64 all work.
Any other size does not.=