[Bug target/102767] ICE in rs6000_builtin_vectorization_cost, at config/rs6000/rs6000.c:5216

[rearnsha at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102767

--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> ---
We have the type 
<vector_type 0x7ffff758c9d8
    type <integer_type 0x7ffff7517bd0 public unsigned TI
        size <integer_cst 0x7ffff7514ee8 constant 128>
        unit-size <integer_cst 0x7ffff7514f00 constant 16>
and movmisalign pattern is enabled for this.

but the vectorization cost doesn't handle the case of elements=1, which is the
case when mode is TImode.

So I think this is an inconsistency in the rs6000 backend - either add costing
support for single elements or disable the movmisalign code in this case.