[Bug rtl-optimization/82020] ICE in decompose at rtl.h:2126

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82020

--- Comment #1 from Tom de Vries <vries at gcc dot gnu.org> ---
Happens on this  rtl:
...
#13 0x0000000001467933 in combine_simplify_rtx (x=0x7ffff7424c20,
op0_mode=BImode, in_dest=0, in_cond=0)
    at gcc/combine.c:5599
5599                                             XEXP (x, 1), XEXP (x, 2));
(gdb) call debug_rtx (x)
(if_then_else (lt:BI (const_int -2147483648 [0xffffffff80000000])
        (const_int 0 [0]))
    (label_ref 13)
    (pc))
...