Fix rdar://5905347 a crash on invalid builtin, due to the
params not getting installed for builtins when synthesized.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50676 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index f583ad1..2624f50 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -143,8 +143,7 @@
return 0;
}
-void Sema::InitBuiltinVaListType()
-{
+void Sema::InitBuiltinVaListType() {
if (!Context.getBuiltinVaListType().isNull())
return;
@@ -161,8 +160,8 @@
Builtin::ID BID = (Builtin::ID)bid;
if (BID == Builtin::BI__builtin_va_start ||
- BID == Builtin::BI__builtin_va_copy ||
- BID == Builtin::BI__builtin_va_end)
+ BID == Builtin::BI__builtin_va_copy ||
+ BID == Builtin::BI__builtin_va_end)
InitBuiltinVaListType();
QualType R = Context.BuiltinInfo.GetBuiltinType(BID, Context);
@@ -171,6 +170,19 @@
SourceLocation(), II, R,
FunctionDecl::Extern, false, 0);
+ // Create Decl objects for each parameter, adding them to the
+ // FunctionDecl.
+ if (FunctionTypeProto *FT = dyn_cast<FunctionTypeProto>(R)) {
+ llvm::SmallVector<ParmVarDecl*, 16> Params;
+ for (unsigned i = 0, e = FT->getNumArgs(); i != e; ++i)
+ Params.push_back(ParmVarDecl::Create(Context, New, SourceLocation(), 0,
+ FT->getArgType(i), VarDecl::None, 0,
+ 0));
+ New->setParams(&Params[0], Params.size());
+ }
+
+
+
// TUScope is the translation-unit scope to insert this function into.
TUScope->AddDecl(New);