Vendor import of clang trunk r256633:

https://llvm.org/svn/llvm-project/cfe/trunk@256633

1 files changed, 54 insertions, 0 deletions

diff --git a/test/Analysis/initializer.cpp b/test/Analysis/initializer.cpp
index a71e35d..b31c315 100644
--- a/test/Analysis/initializer.cpp
+++ b/test/Analysis/initializer.cpp
@@ -143,3 +143,57 @@ namespace DefaultMemberInitializers {
     clang_analyzer_eval(w.p[1] == 'y'); // expected-warning{{TRUE}}
   }
 }
+
+namespace ReferenceInitialization {
+  struct OtherStruct {
+    OtherStruct(int i);
+    ~OtherStruct();
+  };
+
+  struct MyStruct {
+    MyStruct(int i);
+    MyStruct(OtherStruct os);
+
+    void method() const;
+  };
+
+  void referenceInitializeLocal() {
+    const MyStruct &myStruct(5);
+    myStruct.method(); // no-warning
+  }
+
+  void referenceInitializeMultipleLocals() {
+    const MyStruct &myStruct1(5), myStruct2(5), &myStruct3(5);
+    myStruct1.method(); // no-warning
+    myStruct2.method(); // no-warning
+    myStruct3.method(); // no-warning
+  }
+
+  void referenceInitializeLocalWithCleanup() {
+    const MyStruct &myStruct(OtherStruct(5));
+    myStruct.method(); // no-warning
+  }
+
+  struct HasMyStruct {
+    const MyStruct &ms; // expected-note {{reference member declared here}}
+    const MyStruct &msWithCleanups; // expected-note {{reference member declared here}}
+
+    // clang's Sema issues a warning when binding a reference member to a
+    // temporary value.
+    HasMyStruct() : ms(5), msWithCleanups(OtherStruct(5)) {
+        // expected-warning@-1 {{binding reference member 'ms' to a temporary value}}
+        // expected-warning@-2 {{binding reference member 'msWithCleanups' to a temporary value}}
+
+      // At this point the members are not garbage so we should not expect an
+      // analyzer warning here even though binding a reference member
+      // to a member is a terrible idea.
+      ms.method(); // no-warning
+      msWithCleanups.method(); // no-warning
+    }
+  };
+
+  void referenceInitializeField() {
+    HasMyStruct hms;
+  }
+
+};