error[E0080]: evaluation of constant value failed
  --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL
   |
   = note: unable to turn pointer into raw bytes
   |
   = help: this code performed an operation that depends on the underlying bytes representing a pointer
   = help: the absolute address of a pointer is not known at compile-time, so such operations are not supported
note: inside `std::ptr::read::<u8>`
  --> $SRC_DIR/core/src/ptr/mod.rs:LL:COL
note: inside `ptr::const_ptr::<impl *const u8>::read`
  --> $SRC_DIR/core/src/ptr/const_ptr.rs:LL:COL
note: inside `C`
  --> $DIR/issue-miri-1910.rs:7:5
   |
LL |     (&foo as *const _ as *const u8).add(one_and_a_half_pointers).read();
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

error: aborting due to previous error

For more information about this error, try `rustc --explain E0080`.