[Bug rtl-optimization/122782] UBSAN: trunk/gcc/ext-dce.cc:838:38: runtime error: shift exponent 96 is too large for 64-bit type 'long unsigned int'

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122782

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
>                       unsigned HOST_WIDE_INT src_mask = GET_MODE_BITSIZE
> (GET_MODE (src)).to_constant ();
>                       src_mask -= INTVAL (XEXP (src, 1));
>                       src_mask = (HOST_WIDE_INT_1U << src_mask) - 1;
> 
> 
> I am 99% sure this should reject before hand TImode.

I mean reject in the sense not process it during ext-dce.