Add parser support for __builtin_stdarg_start, PR2531

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@53328 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/AST/Builtins.def b/include/clang/AST/Builtins.def
index de755f5d5f842b10260f45ef467f01494d6c8e15..7bdcd6dd8d0002588695b8678b40ffa1231acafc 100644 (file)
--- a/include/clang/AST/Builtins.def
+++ b/include/clang/AST/Builtins.def
@@ -99,6 +99,7 @@ BUILTIN(__builtin___CFStringMakeConstantString, "FC*cC*", "nc")
 BUILTIN(__builtin_va_start, "va&.", "n")
 BUILTIN(__builtin_va_end, "va&", "n")
 BUILTIN(__builtin_va_copy, "va&a", "n")
+BUILTIN(__builtin_stdarg_start, "va&a", "n")
 BUILTIN(__builtin_memcpy, "v*v*vC*z", "n")
 BUILTIN(__builtin_return_address, "v*Ui", "n")
 BUILTIN(__builtin_frame_address, "v*Ui", "n")

diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index 8b98cbad112bdaf044a8589498e5f646ef88acfb..183d9a9a24b9e2b0abf0c006732cf8edd946b3d6 100644 (file)
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -205,7 +205,8 @@ ScopedDecl *Sema::LazilyCreateBuiltin(IdentifierInfo *II, unsigned 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_end ||
+      BID == Builtin::BI__builtin_stdarg_start)
     InitBuiltinVaListType();
     
   QualType R = Context.BuiltinInfo.GetBuiltinType(BID, Context);