error: overly complex generic constant
  --> $DIR/monomorphize-shuffle-index.rs:29:45
   |
LL |         return simd_shuffle_generic::<_, _, { &Self::I }>(a, b);
   |                                             ^^--------^^
   |                                               |
   |                                               pointer casts are not allowed in generic constants
   |
   = help: consider moving this anonymous constant into a `const` function

error: aborting due to 1 previous error