src/test/mir-opt/dead-store-elimination/provenance_soundness.rs

   1 // unit-test: DeadStoreElimination
   2 // compile-flags: -Zmir-emit-retag
   3
   4 // Test that we don't remove pointer to int casts or retags
   5
   6 // EMIT_MIR provenance_soundness.pointer_to_int.DeadStoreElimination.diff
   7 fn pointer_to_int(p: *mut i32) {
   8     let _x = p as usize;
   9     let _y = p as isize;
  10 }
  11
  12 // EMIT_MIR provenance_soundness.retags.DeadStoreElimination.diff
  13 fn retags(_r: &mut i32) {}
  14
  15 fn main() {
  16     pointer_to_int(&mut 5 as *mut _);
  17     retags(&mut 5);
  18 }