Remove copy of current const prop tests and add a few new tests

Author: jachris

src/test/mir-opt/dataflow-const-prop/checked.rs

@@ -1,5 +1,5 @@
 // unit-test: DataflowConstProp
-// compile-flags: -C overflow-checks=on
+// compile-flags: -Zunsound-mir-opts -Coverflow-checks=on
 
 // EMIT_MIR checked.main.DataflowConstProp.diff
 #[allow(arithmetic_overflow)]

src/test/mir-opt/dataflow-const-prop/inherit_overflow_checks_use.main.DataflowConstProp.diff renamed to src/test/mir-opt/dataflow-const-prop/inherit_overflow.main.DataflowConstProp.diff

@@ -2,13 +2,13 @@
 + // MIR for `main` after DataflowConstProp
 
   fn main() -> () {
-      let mut _0: ();                      // return place in scope 0 at $DIR/inherit_overflow_checks_use.rs:+0:11: +0:11
-      let mut _1: u8;                      // in scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
-      let mut _2: u8;                      // in scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
-      let mut _3: u8;                      // in scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
+      let mut _0: ();                      // return place in scope 0 at $DIR/inherit_overflow.rs:+0:11: +0:11
+      let mut _1: u8;                      // in scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
+      let mut _2: u8;                      // in scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
+      let mut _3: u8;                      // in scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
       scope 1 {
       }
-      scope 2 (inlined <u8 as Add>::add) { // at $DIR/inherit_overflow_checks_use.rs:7:13: 7:47
+      scope 2 (inlined <u8 as Add>::add) { // at $DIR/inherit_overflow.rs:7:13: 7:47
           debug self => _2;                // in scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
           debug other => _3;               // in scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
           let mut _4: u8;                  // in scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
@@ -17,11 +17,11 @@
       }
 
       bb0: {
-          StorageLive(_1);                 // scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
-          StorageLive(_2);                 // scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
-          _2 = const u8::MAX;              // scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
-          StorageLive(_3);                 // scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
-          _3 = const 1_u8;                 // scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
+          StorageLive(_1);                 // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
+          StorageLive(_2);                 // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
+          _2 = const u8::MAX;              // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
+          StorageLive(_3);                 // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
+          _3 = const 1_u8;                 // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
           StorageLive(_4);                 // scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
           _4 = const u8::MAX;              // scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
           StorageLive(_5);                 // scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
@@ -35,11 +35,11 @@
 +         _1 = const 0_u8;                 // scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
           StorageDead(_5);                 // scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
           StorageDead(_4);                 // scope 2 at $SRC_DIR/core/src/ops/arith.rs:LL:COL
-          StorageDead(_3);                 // scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
-          StorageDead(_2);                 // scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:13: +3:47
-          StorageDead(_1);                 // scope 0 at $DIR/inherit_overflow_checks_use.rs:+3:47: +3:48
-          nop;                             // scope 0 at $DIR/inherit_overflow_checks_use.rs:+0:11: +4:2
-          return;                          // scope 0 at $DIR/inherit_overflow_checks_use.rs:+4:2: +4:2
+          StorageDead(_3);                 // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
+          StorageDead(_2);                 // scope 0 at $DIR/inherit_overflow.rs:+3:13: +3:47
+          StorageDead(_1);                 // scope 0 at $DIR/inherit_overflow.rs:+3:47: +3:48
+          nop;                             // scope 0 at $DIR/inherit_overflow.rs:+0:11: +4:2
+          return;                          // scope 0 at $DIR/inherit_overflow.rs:+4:2: +4:2
       }
   }
 

src/test/mir-opt/dataflow-const-prop/inherit_overflow_checks_use.rs renamed to src/test/mir-opt/dataflow-const-prop/inherit_overflow.rs

@@ -1,6 +1,6 @@
-// compile-flags: -C overflow-checks=off
+// compile-flags: -Coverflow-checks=off -Zunsound-mir-opts
 
-// EMIT_MIR inherit_overflow_checks_use.main.DataflowConstProp.diff
+// EMIT_MIR inherit_overflow.main.DataflowConstProp.diff
 fn main() {
     // After inlining, this will contain a `CheckedBinaryOp`. The overflow
     // must be ignored by the constant propagation to avoid triggering a panic.

src/test/mir-opt/dataflow-const-prop/issue_81605.rs

@@ -1,4 +1,5 @@
 // unit-test: DataflowConstProp
+// compile-flags: -Zunsound-mir-opts
 
 // EMIT_MIR issue_81605.f.DataflowConstProp.diff
 fn f() -> usize {