1 files changed, 141 insertions, 0 deletions
diff --git a/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-unwind.mir b/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-unwind.mir
new file mode 100644
index 000000000..3342da545
--- /dev/null
+++ b/tests/mir-opt/pre-codegen/range_iter.forward_loop.PreCodegen.after.panic-unwind.mir
@@ -0,0 +1,141 @@
+// MIR for `forward_loop` after PreCodegen
+
+fn forward_loop(_1: u32, _2: u32, _3: impl Fn(u32)) -> () {
+    debug start => _1;
+    debug end => _2;
+    debug f => _3;
+    let mut _0: ();
+    let mut _4: std::ops::Range<u32>;
+    let mut _5: std::ops::Range<u32>;
+    let mut _6: &mut std::ops::Range<u32>;
+    let mut _12: std::option::Option<u32>;
+    let mut _15: isize;
+    let mut _17: &impl Fn(u32);
+    let mut _18: (u32,);
+    let _19: ();
+    scope 1 {
+        debug iter => _5;
+        let _16: u32;
+        scope 2 {
+            debug x => _16;
+        }
+        scope 4 (inlined iter::range::<impl Iterator for std::ops::Range<u32>>::next) {
+            debug self => _6;
+            scope 5 (inlined <std::ops::Range<u32> as iter::range::RangeIteratorImpl>::spec_next) {
+                debug self => _6;
+                let mut _7: &u32;
+                let mut _8: &u32;
+                let mut _11: bool;
+                let _13: u32;
+                let mut _14: u32;
+                scope 6 {
+                    debug old => _13;
+                    scope 7 {
+                    }
+                }
+                scope 8 (inlined std::cmp::impls::<impl PartialOrd for u32>::lt) {
+                    debug self => _7;
+                    debug other => _8;
+                    let mut _9: u32;
+                    let mut _10: u32;
+                }
+            }
+        }
+    }
+    scope 3 (inlined <std::ops::Range<u32> as IntoIterator>::into_iter) {
+        debug self => _4;
+    }
+
+    bb0: {
+        _4 = std::ops::Range::<u32> { start: _1, end: _2 };
+        StorageLive(_5);
+        _5 = move _4;
+        goto -> bb1;
+    }
+
+    bb1: {
+        StorageLive(_12);
+        _6 = &mut _5;
+        StorageLive(_13);
+        StorageLive(_11);
+        StorageLive(_7);
+        _7 = &(_5.0: u32);
+        StorageLive(_8);
+        _8 = &(_5.1: u32);
+        StorageLive(_9);
+        _9 = (_5.0: u32);
+        StorageLive(_10);
+        _10 = (_5.1: u32);
+        _11 = Lt(move _9, move _10);
+        StorageDead(_10);
+        StorageDead(_9);
+        switchInt(move _11) -> [0: bb2, otherwise: bb3];
+    }
+
+    bb2: {
+        StorageDead(_8);
+        StorageDead(_7);
+        _12 = Option::<u32>::None;
+        goto -> bb5;
+    }
+
+    bb3: {
+        StorageDead(_8);
+        StorageDead(_7);
+        _13 = (_5.0: u32);
+        StorageLive(_14);
+        _14 = <u32 as Step>::forward_unchecked(_13, const 1_usize) -> [return: bb4, unwind: bb11];
+    }
+
+    bb4: {
+        (_5.0: u32) = move _14;
+        StorageDead(_14);
+        _12 = Option::<u32>::Some(_13);
+        goto -> bb5;
+    }
+
+    bb5: {
+        StorageDead(_11);
+        StorageDead(_13);
+        _15 = discriminant(_12);
+        switchInt(move _15) -> [0: bb6, 1: bb8, otherwise: bb10];
+    }
+
+    bb6: {
+        StorageDead(_12);
+        StorageDead(_5);
+        drop(_3) -> [return: bb7, unwind continue];
+    }
+
+    bb7: {
+        return;
+    }
+
+    bb8: {
+        _16 = ((_12 as Some).0: u32);
+        StorageLive(_17);
+        _17 = &_3;
+        StorageLive(_18);
+        _18 = (_16,);
+        _19 = <impl Fn(u32) as Fn<(u32,)>>::call(move _17, move _18) -> [return: bb9, unwind: bb11];
+    }
+
+    bb9: {
+        StorageDead(_18);
+        StorageDead(_17);
+        StorageDead(_12);
+        goto -> bb1;
+    }
+
+    bb10: {
+        unreachable;
+    }
+
+    bb11 (cleanup): {
+        drop(_3) -> [return: bb12, unwind terminate(cleanup)];
+    }
+
+    bb12 (cleanup): {
+        resume;
+    }
+}