Auto merge of #110713 - cjgillot:track-mir-opt, r=scottmcm

Add mir-opt tests to track MIR quality.

cc `@scottmcm` `@saethlin`

If you have other ideas, please say so.

1 files changed, 59 insertions, 0 deletions

diff --git a/tests/mir-opt/pre-codegen/optimizes_into_variable.main.ConstProp.32bit.diff b/tests/mir-opt/pre-codegen/optimizes_into_variable.main.ConstProp.32bit.diff
new file mode 100644
index 00000000000..691aa01a564
--- /dev/null
+++ b/tests/mir-opt/pre-codegen/optimizes_into_variable.main.ConstProp.32bit.diff
@@ -0,0 +1,59 @@
+- // MIR for `main` before ConstProp
++ // MIR for `main` after ConstProp
+  
+  fn main() -> () {
+      let mut _0: ();                      // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11
+      let _1: i32;                         // in scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10
+      let mut _2: (i32, bool);             // in scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18
+      let mut _4: [i32; 6];                // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:31
+      let _5: usize;                       // in scope 0 at $DIR/optimizes_into_variable.rs:+2:32: +2:33
+      let mut _6: usize;                   // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
+      let mut _7: bool;                    // in scope 0 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
+      let mut _9: u32;                     // in scope 0 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
+      scope 1 {
+          debug x => _1;                   // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10
+          let _3: i32;                     // in scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10
+          scope 2 {
+              debug y => _3;               // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10
+              let _8: u32;                 // in scope 2 at $DIR/optimizes_into_variable.rs:+3:9: +3:10
+              scope 3 {
+                  debug z => _9;           // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10
+              }
+          }
+      }
+  
+      bb0: {
+          StorageLive(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:+1:9: +1:10
+-         _2 = CheckedAdd(const 2_i32, const 2_i32); // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18
+-         assert(!move (_2.1: bool), "attempt to compute `{} + {}`, which would overflow", const 2_i32, const 2_i32) -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18
++         _2 = const (4_i32, false);       // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18
++         assert(!const false, "attempt to compute `{} + {}`, which would overflow", const 2_i32, const 2_i32) -> bb1; // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18
+      }
+  
+      bb1: {
+-         _1 = move (_2.0: i32);           // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18
++         _1 = const 4_i32;                // scope 0 at $DIR/optimizes_into_variable.rs:+1:13: +1:18
+          StorageLive(_3);                 // scope 1 at $DIR/optimizes_into_variable.rs:+2:9: +2:10
+          StorageLive(_4);                 // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:31
+          _4 = [const 0_i32, const 1_i32, const 2_i32, const 3_i32, const 4_i32, const 5_i32]; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:31
+          StorageLive(_5);                 // scope 1 at $DIR/optimizes_into_variable.rs:+2:32: +2:33
+          _5 = const 3_usize;              // scope 1 at $DIR/optimizes_into_variable.rs:+2:32: +2:33
+          _6 = const 6_usize;              // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
+-         _7 = Lt(_5, _6);                 // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
+-         assert(move _7, "index out of bounds: the length is {} but the index is {}", move _6, _5) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
++         _7 = const true;                 // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
++         assert(const true, "index out of bounds: the length is {} but the index is {}", const 6_usize, const 3_usize) -> bb2; // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
+      }
+  
+      bb2: {
+-         _3 = _4[_5];                     // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
++         _3 = const 3_i32;                // scope 1 at $DIR/optimizes_into_variable.rs:+2:13: +2:34
+          StorageDead(_5);                 // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35
+          StorageDead(_4);                 // scope 1 at $DIR/optimizes_into_variable.rs:+2:34: +2:35
+          _9 = const 42_u32;               // scope 2 at $DIR/optimizes_into_variable.rs:+3:13: +3:36
+          StorageDead(_3);                 // scope 1 at $DIR/optimizes_into_variable.rs:+4:1: +4:2
+          StorageDead(_1);                 // scope 0 at $DIR/optimizes_into_variable.rs:+4:1: +4:2
+          return;                          // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2
+      }
+  }
+