Fix -Wuninitialized to catch the case of a class being initialized with a call

to its own member function.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@152276 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Sema/SemaDecl.cpp

@@ -5993,7 +5993,8 @@ namespace {
 
     void VisitMemberExpr(MemberExpr *E) {
       if (E->getType()->canDecayToPointerType()) return;
-      if (isa<FieldDecl>(E->getMemberDecl()))
+      ValueDecl *VD = E->getMemberDecl();
+      if (isa<FieldDecl>(VD) || isa<CXXMethodDecl>(VD))
         if (DeclRefExpr *DRE
               = dyn_cast<DeclRefExpr>(E->getBase()->IgnoreParenImpCasts())) {
           HandleDeclRefExpr(DRE);

test/SemaCXX/uninitialized.cpp

@@ -33,6 +33,7 @@ class A {
     int num;
     static int count;
     int get() const { return num; }
+    int get2() { return num; }
     void set(int x) { num = x; }
     static int zero() { return 0; }
 
@@ -67,6 +68,7 @@ void setupA() {
   A a14 = A(a14);  // expected-warning {{variable 'a14' is uninitialized when used within its own initialization}}
   A a15 = getA(a15.num);  // expected-warning {{variable 'a15' is uninitialized when used within its own initialization}}
   A a16(&a16.num);  // expected-warning {{variable 'a16' is uninitialized when used within its own initialization}}
+  A a17(a17.get2());  // expected-warning {{variable 'a17' is uninitialized when used within its own initialization}}
 }
 
 struct B {