PR18152: When computing the semantic form for an initializer list, keep track

of whether the initializer list is dependent.

llvm-svn: 196558

clang/include/clang/AST/Expr.h

@@ -3774,6 +3774,14 @@ public:
   void setInit(unsigned Init, Expr *expr) {
     assert(Init < getNumInits() && "Initializer access out of range!");
     InitExprs[Init] = expr;
+
+    if (expr) {
+      ExprBits.TypeDependent |= expr->isTypeDependent();
+      ExprBits.ValueDependent |= expr->isValueDependent();
+      ExprBits.InstantiationDependent |= expr->isInstantiationDependent();
+      ExprBits.ContainsUnexpandedParameterPack |=
+          expr->containsUnexpandedParameterPack();
+    }
   }
 
   /// \brief Reserve space for some number of initializers.

clang/lib/AST/Expr.cpp

@@ -1867,12 +1867,12 @@ void InitListExpr::resizeInits(const ASTContext &C, unsigned NumInits) {
 Expr *InitListExpr::updateInit(const ASTContext &C, unsigned Init, Expr *expr) {
   if (Init >= InitExprs.size()) {
     InitExprs.insert(C, InitExprs.end(), Init - InitExprs.size() + 1, 0);
-    InitExprs.back() = expr;
+    setInit(Init, expr);
     return 0;
   }
 
   Expr *Result = cast_or_null<Expr>(InitExprs[Init]);
-  InitExprs[Init] = expr;
+  setInit(Init, expr);
   return Result;
 }
 

clang/test/SemaTemplate/dependent-expr.cpp

@@ -93,3 +93,10 @@ namespace PR10837 {
   }
   template struct A<int>;
 }
+
+namespace PR18152 {
+  template<int N> struct A {
+    static const int n = {N};
+  };
+  template struct A<0>;
+}