src/test/mir-opt/const_promotion_extern_static.FOO.PromoteTemps.diff

   1 - // MIR for `FOO` before PromoteTemps
   2 + // MIR for `FOO` after PromoteTemps
   3
   4   static mut FOO: *const &i32 = {
   5       let mut _0: *const &i32;             // return place in scope 0 at $DIR/const-promotion-extern-static.rs:13:17: 13:28
   6       let mut _1: &[&i32];                 // in scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
   7       let mut _2: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
   8       let _3: [&i32; 1];                   // in scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
   9       let mut _4: &i32;                    // in scope 0 at $DIR/const-promotion-extern-static.rs:13:32: 13:45
  10       let _5: *const i32;                  // in scope 0 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
  11 +     let mut _6: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
  12       scope 1 {
  13       }
  14
  15       bb0: {
  16           StorageLive(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
  17           StorageLive(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
  18 -         StorageLive(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
  19 -         StorageLive(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:32: 13:45
  20 -         StorageLive(_5);                 // scope 1 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
  21 -         _5 = const {alloc3: *const i32}; // scope 1 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
  22 +         _6 = const FOO::promoted[0];     // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
  23 +                                          // ty::Const
  24 +                                          // + ty: &[&i32; 1]
  25 +                                          // + val: Unevaluated(FOO, [], Some(promoted[0]))
  26                                            // mir::Constant
  27 -                                          // + span: $DIR/const-promotion-extern-static.rs:13:42: 13:43
  28 -                                          // + literal: Const { ty: *const i32, val: Value(Scalar(alloc3)) }
  29 -         _4 = &(*_5);                     // scope 1 at $DIR/const-promotion-extern-static.rs:13:41: 13:43
  30 -         _3 = [move _4];                  // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
  31 -         _2 = &_3;                        // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
  32 +                                          // + span: $DIR/const-promotion-extern-static.rs:13:31: 13:55
  33 +                                          // + literal: Const { ty: &[&i32; 1], val: Unevaluated(Unevaluated { def: WithOptConstParam { did: DefId(0:7 ~ const_promotion_extern_static[e01c]::FOO), const_param_did: None }, substs: [], promoted: Some(promoted[0]) }) }
  34 +         _2 = &(*_6);                     // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
  35           _1 = move _2 as &[&i32] (Pointer(Unsize)); // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
  36 -         StorageDead(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:45: 13:46
  37           StorageDead(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:45: 13:46
  38           _0 = core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb1, unwind: bb2]; // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
  39                                            // mir::Constant
  40                                            // + span: $DIR/const-promotion-extern-static.rs:13:47: 13:53
  41                                            // + literal: Const { ty: for<'r> fn(&'r [&i32]) -> *const &i32 {core::slice::<impl [&i32]>::as_ptr}, val: Value(Scalar(<ZST>)) }
  42       }
  43
  44       bb1: {
  45 -         StorageDead(_5);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
  46 -         StorageDead(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
  47           StorageDead(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
  48           return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
  49       }
  50
  51       bb2 (cleanup): {
  52           resume;                          // scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
  53       }
  54   }
  55 -
  56 - alloc3 (extern static: X)
  57