src/test/mir-opt/const_prop/control_flow_simplification.hello.ConstProp.diff

   1 - // MIR for `hello` before ConstProp
   2 + // MIR for `hello` after ConstProp
   3
   4   fn hello() -> () {
   5       let mut _0: ();                      // return place in scope 0 at $DIR/control-flow-simplification.rs:11:14: 11:14
   6       let mut _1: bool;                    // in scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
   7       let mut _2: !;                       // in scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL
   8
   9       bb0: {
  10           StorageLive(_1);                 // scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
  11 -         _1 = const <bool as NeedsDrop>::NEEDS; // scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
  12 -         switchInt(move _1) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
  13 +         _1 = const false;                // scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
  14 +         switchInt(const false) -> [false: bb2, otherwise: bb1]; // scope 0 at $DIR/control-flow-simplification.rs:12:8: 12:21
  15       }
  16
  17       bb1: {
  18           StorageLive(_2);                 // scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL
  19           _2 = begin_panic::<&str>(const "explicit panic"); // scope 0 at $SRC_DIR/std/src/panic.rs:LL:COL
  20                                            // mir::Constant
  21                                            // + span: $SRC_DIR/std/src/panic.rs:LL:COL
  22                                            // + literal: Const { ty: fn(&str) -> ! {begin_panic::<&str>}, val: Value(Scalar(<ZST>)) }
  23                                            // mir::Constant
  24                                            // + span: $SRC_DIR/std/src/panic.rs:LL:COL
  25                                            // + literal: Const { ty: &str, val: Value(Slice(..)) }
  26       }
  27
  28       bb2: {
  29           nop;                             // scope 0 at $DIR/control-flow-simplification.rs:14:6: 14:6
  30           StorageDead(_1);                 // scope 0 at $DIR/control-flow-simplification.rs:14:5: 14:6
  31           return;                          // scope 0 at $DIR/control-flow-simplification.rs:15:2: 15:2
  32       }
  33   }
  34