1 files changed, 250 insertions, 0 deletions
diff --git a/src/test/incremental/hashes/while_let_loops.rs b/src/test/incremental/hashes/while_let_loops.rs
new file mode 100644
index 000000000..f81855e42
--- /dev/null
+++ b/src/test/incremental/hashes/while_let_loops.rs
@@ -0,0 +1,250 @@
+// This test case tests the incremental compilation hash (ICH) implementation
+// for `while let` loops.
+
+// The general pattern followed here is: Change one thing between rev1 and rev2
+// and make sure that the hash has changed, then change nothing between rev2 and
+// rev3 and make sure that the hash has not changed.
+
+// build-pass (FIXME(62277): could be check-pass?)
+// revisions: cfail1 cfail2 cfail3 cfail4 cfail5 cfail6
+// compile-flags: -Z query-dep-graph -O
+// [cfail1]compile-flags: -Zincremental-ignore-spans
+// [cfail2]compile-flags: -Zincremental-ignore-spans
+// [cfail3]compile-flags: -Zincremental-ignore-spans
+// [cfail4]compile-flags: -Zincremental-relative-spans
+// [cfail5]compile-flags: -Zincremental-relative-spans
+// [cfail6]compile-flags: -Zincremental-relative-spans
+
+#![allow(warnings)]
+#![feature(rustc_attrs)]
+#![crate_type="rlib"]
+
+
+// Change loop body
+#[cfg(any(cfail1,cfail4))]
+pub fn change_loop_body() {
+    let mut _x = 0;
+    while let Some(0u32) = None {
+        _x = 1;
+        break;
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_loop_body() {
+    let mut _x = 0;
+    while let Some(0u32) = None {
+        _x = 2;
+        break;
+    }
+}
+
+
+
+// Change loop body
+#[cfg(any(cfail1,cfail4))]
+pub fn change_loop_condition() {
+    let mut _x = 0;
+    while let Some(0u32) = None {
+        _x = 1;
+        break;
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_loop_condition() {
+    let mut _x = 0;
+    while let Some(1u32) = None {
+        _x = 1;
+        break;
+    }
+}
+
+
+
+// Add break
+#[cfg(any(cfail1,cfail4))]
+pub fn add_break() {
+    let mut _x = 0;
+    while let Some(0u32) = None {
+        _x = 1;
+        // ---
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes, typeck")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes, typeck")]
+#[rustc_clean(cfg="cfail6")]
+pub fn add_break() {
+    let mut _x = 0;
+    while let Some(0u32) = None {
+        _x = 1;
+        break;
+    }
+}
+
+
+
+// Add loop label
+#[cfg(any(cfail1,cfail4))]
+pub fn add_loop_label() {
+    let mut _x = 0;
+            while let Some(0u32) = None {
+        _x = 1;
+        break;
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail6")]
+pub fn add_loop_label() {
+    let mut _x = 0;
+    'label: while let Some(0u32) = None {
+        _x = 1;
+        break;
+    }
+}
+
+
+
+// Add loop label to break
+#[cfg(any(cfail1,cfail4))]
+pub fn add_loop_label_to_break() {
+    let mut _x = 0;
+    'label: while let Some(0u32) = None {
+        _x = 1;
+        break       ;
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail6")]
+pub fn add_loop_label_to_break() {
+    let mut _x = 0;
+    'label: while let Some(0u32) = None {
+        _x = 1;
+        break 'label;
+    }
+}
+
+
+
+// Change break label
+#[cfg(any(cfail1,cfail4))]
+pub fn change_break_label() {
+    let mut _x = 0;
+    'outer: while let Some(0u32) = None {
+        'inner: while let Some(0u32) = None {
+            _x = 1;
+            break 'inner;
+        }
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,typeck")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,typeck")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_break_label() {
+    let mut _x = 0;
+    'outer: while let Some(0u32) = None {
+        'inner: while let Some(0u32) = None {
+            _x = 1;
+            break 'outer;
+        }
+    }
+}
+
+// Add loop label to continue
+#[cfg(any(cfail1,cfail4))]
+pub fn add_loop_label_to_continue() {
+    let mut _x = 0;
+    'label: while let Some(0u32) = None {
+        _x = 1;
+        continue       ;
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail6")]
+pub fn add_loop_label_to_continue() {
+    let mut _x = 0;
+    'label: while let Some(0u32) = None {
+        _x = 1;
+        continue 'label;
+    }
+}
+
+
+
+// Change continue label
+#[cfg(any(cfail1,cfail4))]
+pub fn change_continue_label() {
+    let mut _x = 0;
+    'outer: while let Some(0u32) = None {
+        'inner: while let Some(0u32) = None {
+            _x = 1;
+            continue 'inner;
+        }
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,typeck")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,typeck")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_continue_label() {
+    let mut _x = 0;
+    'outer: while let Some(0u32) = None {
+        'inner: while let Some(0u32) = None {
+            _x = 1;
+            continue 'outer;
+        }
+    }
+}
+
+
+
+// Change continue to break
+#[cfg(any(cfail1,cfail4))]
+pub fn change_continue_to_break() {
+    let mut _x = 0;
+    while let Some(0u32) = None {
+        _x = 1;
+        continue;
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_continue_to_break() {
+    let mut _x = 0;
+    while let Some(0u32) = None {
+        _x = 1;
+        break   ;
+    }
+}