[Bug rtl-optimization/125727] [16/17 Regression] ICE on valid code at -O{s,2,3} with "-fno-tree-forwprop -fno-tree-pre -fno-tree-vrp -fno-tree-dce" on x86_64-linux-gnu: in simplify_subreg, at simplify-rtx.cc:8465

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125727

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2026-06-10

--- Comment #2 from Drea Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Drea Pinski from comment #1)
> My bet is we get a (clobber) here and it should have been rejected earlier.

Yep:
(xor:QI (and:QI (subreg:QI (reg:DI 119 [ _48 ]) 0)
        (const_int 1 [0x1]))
    (clobber:SI (const_int 0 [0])))


:)