r224449 - Support constant evaluation for member calls on std::initializer_list

[Richard Smith]

Author: rsmith
Date: Wed Dec 17 13:24:30 2014
New Revision: 224449

URL: http://llvm.org/viewvc/llvm-project?rev=224449&view=rev
Log:
Support constant evaluation for member calls on std::initializer_list
temporaries.

Modified:
    cfe/trunk/lib/AST/ExprConstant.cpp
    cfe/trunk/test/SemaCXX/constant-expression-cxx11.cpp

Modified: cfe/trunk/lib/AST/ExprConstant.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/AST/ExprConstant.cpp?rev=224449&r1=224448&r2=224449&view=diff
==============================================================================
--- cfe/trunk/lib/AST/ExprConstant.cpp (original)
+++ cfe/trunk/lib/AST/ExprConstant.cpp Wed Dec 17 13:24:30 2014
@@ -5474,6 +5474,9 @@ public:
   bool VisitCallExpr(const CallExpr *E) {
     return VisitConstructExpr(E);
   }
+  bool VisitCXXStdInitializerListExpr(const CXXStdInitializerListExpr *E) {
+    return VisitConstructExpr(E);
+  }
 };
 } // end anonymous namespace
 

Modified: cfe/trunk/test/SemaCXX/constant-expression-cxx11.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/SemaCXX/constant-expression-cxx11.cpp?rev=224449&r1=224448&r2=224449&view=diff
==============================================================================
--- cfe/trunk/test/SemaCXX/constant-expression-cxx11.cpp (original)
+++ cfe/trunk/test/SemaCXX/constant-expression-cxx11.cpp Wed Dec 17 13:24:30 2014
@@ -1712,6 +1712,9 @@ namespace InitializerList {
     return sum(ints.begin(), ints.end());
   }
   static_assert(sum({1, 2, 3, 4, 5}) == 15, "");
+
+  static_assert(*std::initializer_list<int>{1, 2, 3}.begin() == 1, "");
+  static_assert(std::initializer_list<int>{1, 2, 3}.begin()[2] == 3, "");
 }
 
 namespace StmtExpr {