Refuse to compile global std::initializer_lists instead of doing completely the wrong thing.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@150928 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 9 insertions, 0 deletions

diff --git a/lib/AST/ExprConstant.cpp b/lib/AST/ExprConstant.cpp
index dda6e84922..4ae5ab42ff 100644
--- a/lib/AST/ExprConstant.cpp
+++ b/lib/AST/ExprConstant.cpp
@@ -3513,6 +3513,10 @@ bool RecordExprEvaluator::VisitCastExpr(const CastExpr *E) {
 }
 
 bool RecordExprEvaluator::VisitInitListExpr(const InitListExpr *E) {
+  // Cannot constant-evaluate std::initializer_list inits.
+  if (E->initializesStdInitializerList())
+    return false;
+
   const RecordDecl *RD = E->getType()->castAs<RecordType>()->getDecl();
   const ASTRecordLayout &Layout = Info.Ctx.getASTRecordLayout(RD);
 
diff --git a/lib/CodeGen/CGExprConstant.cpp b/lib/CodeGen/CGExprConstant.cpp
index 985e53227e..a7cd36862b 100644
--- a/lib/CodeGen/CGExprConstant.cpp
+++ b/lib/CodeGen/CGExprConstant.cpp
@@ -339,6 +339,11 @@ void ConstStructBuilder::ConvertStructToPacked() {
 }
                             
 bool ConstStructBuilder::Build(InitListExpr *ILE) {
+  if (ILE->initializesStdInitializerList()) {
+    CGM.ErrorUnsupported(ILE, "global std::initializer_list");
+    return false;
+  }
+
   RecordDecl *RD = ILE->getType()->getAs<RecordType>()->getDecl();
   const ASTRecordLayout &Layout = CGM.getContext().getASTRecordLayout(RD);