[Bug target/123011] internal compiler error: in simplify_subreg, at simplify-rtx.cc:7983 with -mstrict-align with SVE code

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123011

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
   Last reconfirmed|2025-12-04 00:00:00         |2025-12-05
             Status|UNCONFIRMED                 |NEW
      Known to fail|                            |10.2.0

--- Comment #15 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
  _15 = MEM[(const UnalignedSveMaskTD.148171 *)_10 clique 2 base 1];

Semi-Reduced testcase:
```
#include <arm_sve.h>

svbool_t LoadMaskBits(const uint8_t *__restrict__ bits) {
  typedef svbool_t UnalignedSveMaskT __attribute__((__aligned__(1),
__may_alias__));
  return *reinterpret_cast<const UnalignedSveMaskT *>(bits);
}

```
options: `-mstrict-align -O2 -march=armv8.4-a+sve`

Confirmed been failing since SVE support was added.