[Bug middle-end/124280] [16 regression] ICE in expand_vector_broadcast after r16-7717-g1139fdadc85a0b

[xry111 at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124280

Xi Ruoyao <xry111 at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Target|aarch64                     |
     Ever confirmed|0                           |1
            Version|16.0                        |unknown
           Keywords|ice-on-valid-code           |
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2026-02-27
   Target Milestone|16.0                        |---
           Priority|P1                          |P3

--- Comment #1 from Xi Ruoyao <xry111 at gcc dot gnu.org> ---
This is when expanding

<signed-boolean:4> _68;
vector([4,4]) <signed-boolean:4> _69;
... ...
_69 = [vec_duplicate_expr] _68;

bool is lowered to QImode but bool vector is lowered to BImode vector.