From 062a82cdfab01d95f7fa3d759342e6f2ee5c51b0 Mon Sep 17 00:00:00 2001 From: Sebastian Redl Date: Mon, 27 Feb 2012 23:20:01 +0000 Subject: Hack in a loud error for PR12086. Better than a silent miscompile. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151586 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/CodeGen/CodeGenModule.cpp | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) (limited to 'lib/CodeGen/CodeGenModule.cpp') diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp index ddd04a427c..a3a71b7e52 100644 --- a/lib/CodeGen/CodeGenModule.cpp +++ b/lib/CodeGen/CodeGenModule.cpp @@ -1376,8 +1376,19 @@ CodeGenModule::MaybeEmitGlobalStdInitializerListInitializer(const VarDecl *D, return 0; ASTContext &ctx = getContext(); - // Synthesize a fake VarDecl for the array and initialize that. unsigned numInits = init->getNumInits(); + // FIXME: This check is here because we would otherwise silently miscompile + // nested global std::initializer_lists. Better would be to have a real + // implementation. + for (unsigned i = 0; i < numInits; ++i) { + const InitListExpr *inner = dyn_cast(init->getInit(i)); + if (inner && inner->initializesStdInitializerList()) { + ErrorUnsupported(inner, "nested global std::initializer_list"); + return 0; + } + } + + // Synthesize a fake VarDecl for the array and initialize that. QualType elementType = init->getInit(0)->getType(); llvm::APInt numElements(ctx.getTypeSize(ctx.getSizeType()), numInits); QualType arrayType = ctx.getConstantArrayType(elementType, numElements, -- cgit v1.2.3-70-g09d2