1 files changed, 225 insertions, 0 deletions
diff --git a/tests/incremental/hashes/if_expressions.rs b/tests/incremental/hashes/if_expressions.rs
new file mode 100644
index 000000000..937fd3ac8
--- /dev/null
+++ b/tests/incremental/hashes/if_expressions.rs
@@ -0,0 +1,225 @@
+// This test case tests the incremental compilation hash (ICH) implementation
+// for if expressions.
+
+// 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
+
+#![allow(warnings)]
+#![feature(rustc_attrs)]
+#![crate_type="rlib"]
+
+// Change condition (if)
+#[cfg(any(cfail1,cfail4))]
+pub fn change_condition(x: bool) -> u32 {
+    if  x {
+        return 1
+    }
+
+    return 0
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner,hir_owner_nodes,optimized_mir,typeck")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner,hir_owner_nodes,optimized_mir,typeck")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_condition(x: bool) -> u32 {
+    if !x {
+        return 1
+    }
+
+    return 0
+}
+
+// Change then branch (if)
+#[cfg(any(cfail1,cfail4))]
+pub fn change_then_branch(x: bool) -> u32 {
+    if x {
+        return 1
+    }
+
+    return 0
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,optimized_mir")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,optimized_mir")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_then_branch(x: bool) -> u32 {
+    if x {
+        return 2
+    }
+
+    return 0
+}
+
+
+
+// Change else branch (if)
+#[cfg(any(cfail1,cfail4))]
+pub fn change_else_branch(x: bool) -> u32 {
+    if x {
+        1
+    } else {
+        2
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,optimized_mir")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,optimized_mir")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_else_branch(x: bool) -> u32 {
+    if x {
+        1
+    } else {
+        3
+    }
+}
+
+
+
+// Add else branch (if)
+#[cfg(any(cfail1,cfail4))]
+pub fn add_else_branch(x: bool) -> u32 {
+    let mut ret = 1;
+
+    if x {
+        ret = 2;
+    /*----*/
+    }
+
+    ret
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner,hir_owner_nodes,typeck")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner,hir_owner_nodes,typeck")]
+#[rustc_clean(cfg="cfail6")]
+pub fn add_else_branch(x: bool) -> u32 {
+    let mut ret = 1;
+
+    if x {
+        ret = 2;
+    } else {
+    }
+
+    ret
+}
+
+
+
+// Change condition (if let)
+#[cfg(any(cfail1,cfail4))]
+pub fn change_condition_if_let(x: Option<u32>) -> u32 {
+    if let Some(_x) = x {
+        return 1
+    }
+
+    0
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,optimized_mir,typeck")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,optimized_mir,typeck")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_condition_if_let(x: Option<u32>) -> u32 {
+    if let Some(_ ) = x {
+        return 1
+    }
+
+    0
+}
+
+
+
+// Change then branch (if let)
+#[cfg(any(cfail1,cfail4))]
+pub fn change_then_branch_if_let(x: Option<u32>) -> u32 {
+    if let Some(x) = x {
+        return x //-
+    }
+
+    0
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner,hir_owner_nodes,optimized_mir,typeck")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner,hir_owner_nodes,optimized_mir,typeck")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_then_branch_if_let(x: Option<u32>) -> u32 {
+    if let Some(x) = x {
+        return x + 1
+    }
+
+    0
+}
+
+
+
+// Change else branch (if let)
+#[cfg(any(cfail1,cfail4))]
+pub fn change_else_branch_if_let(x: Option<u32>) -> u32 {
+    if let Some(x) = x {
+        x
+    } else {
+        1
+    }
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner_nodes,optimized_mir")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner_nodes,optimized_mir")]
+#[rustc_clean(cfg="cfail6")]
+pub fn change_else_branch_if_let(x: Option<u32>) -> u32 {
+    if let Some(x) = x {
+        x
+    } else {
+        2
+    }
+}
+
+
+
+// Add else branch (if let)
+#[cfg(any(cfail1,cfail4))]
+pub fn add_else_branch_if_let(x: Option<u32>) -> u32 {
+    let mut ret = 1;
+
+    if let Some(x) = x {
+        ret = x;
+    /*----*/
+    }
+
+    ret
+}
+
+#[cfg(not(any(cfail1,cfail4)))]
+#[rustc_clean(cfg="cfail2", except="hir_owner,hir_owner_nodes,typeck")]
+#[rustc_clean(cfg="cfail3")]
+#[rustc_clean(cfg="cfail5", except="hir_owner,hir_owner_nodes,typeck,optimized_mir")]
+#[rustc_clean(cfg="cfail6")]
+pub fn add_else_branch_if_let(x: Option<u32>) -> u32 {
+    let mut ret = 1;
+
+    if let Some(x) = x {
+        ret = x;
+    } else {
+    }
+
+    ret
+}