error[E0589]: invalid `repr(align)` attribute: not an unsuffixed integer
  --> $DIR/repr-align.rs:4:8
   |
LL | #[repr(align(16.0))]
   |        ^^^^^^^^^^^

error[E0589]: invalid `repr(align)` attribute: not a power of two
  --> $DIR/repr-align.rs:7:8
   |
LL | #[repr(align(15))]
   |        ^^^^^^^^^

error[E0589]: invalid `repr(align)` attribute: larger than 2^29
  --> $DIR/repr-align.rs:10:8
   |
LL | #[repr(align(4294967296))]
   |        ^^^^^^^^^^^^^^^^^

error[E0589]: invalid `repr(align)` attribute: not a power of two
  --> $DIR/repr-align.rs:16:8
   |
LL | #[repr(align(15))]
   |        ^^^^^^^^^

error: aborting due to 4 previous errors

For more information about this error, try `rustc --explain E0589`.