[Bug debug/118596] ICE in adjust_mems, at var-tracking with __bf16 vectors and volatile data access on aarch64

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118596

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
What is happening here is expand produces:
(insn 6 5 7 (set (reg:HI 105)
        (subreg:HI (mem/v/j/c:BF (reg/f:DI 95 virtual-incoming-args) [1
BIT_FIELD_REF <MEM[(v32f16_ *)&a], 16, 0>+0 S2 A128]) 0))
"/app/example.cpp":5:26 -1
     (nil))

But VREG does not replace virtual-incoming-args with ap .