tests/mir-opt/casts.redundant.InstSimplify.diff

   1 - // MIR for `redundant` before InstSimplify
   2 + // MIR for `redundant` after InstSimplify
   3
   4   fn redundant(_1: *const &u8) -> *const &u8 {
   5       debug x => _1;
   6       let mut _0: *const &u8;
   7       let mut _2: *const &u8;
   8       let mut _3: *const &u8;
   9       scope 1 (inlined generic_cast::<&u8, &u8>) {
  10           debug x => _1;
  11       }
  12
  13       bb0: {
  14           StorageLive(_2);
  15           StorageLive(_3);
  16           _3 = _1;
  17 -         _2 = _3 as *const &u8 (PtrToPtr);
  18 +         _2 = _3;
  19           StorageDead(_3);
  20           _0 = _2;
  21           StorageDead(_2);
  22           return;
  23       }
  24   }
  25