src/test/mir-opt/copy_propagation.rs

   1 fn test(x: u32) -> u32 {
   2     let y = x;
   3     y
   4 }
   5
   6 fn main() {
   7     // Make sure the function actually gets instantiated.
   8     test(0);
   9 }
  10
  11 // END RUST SOURCE
  12 // START rustc.test.CopyPropagation.before.mir
  13 //  bb0: {
  14 //      ...
  15 //      _2 = _1;
  16 //      ...
  17 //      _0 = _2;
  18 //      ...
  19 //      return;
  20 //  }
  21 // END rustc.test.CopyPropagation.before.mir
  22 // START rustc.test.CopyPropagation.after.mir
  23 //  bb0: {
  24 //      ...
  25 //      _0 = _1;
  26 //      ...
  27 //      return;
  28 //  }
  29 // END rustc.test.CopyPropagation.after.mir