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-rw-r--r--lib/Sema/SemaChecking.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index 74ea1cc3cd..f10fa07d86 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -747,6 +747,7 @@ bool Sema::SemaBuiltinEHReturnDataRegNo(CallExpr *TheCall) {
/// SemaBuiltinObjectSize - Handle __builtin_object_size(void *ptr,
/// int type). This simply type checks that type is one of the defined
/// constants (0-3).
+// For compatability check 0-3, llvm only handles 0 and 2.
bool Sema::SemaBuiltinObjectSize(CallExpr *TheCall) {
Expr *Arg = TheCall->getArg(1);
if (Arg->isTypeDependent())