From a977636a9c1edfea2ba36e039e195b80b6e43cdf Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 1 Dec 2007 05:58:21 +0000
Subject: [PATCH] simplify some code, add support for functions without a proto

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44485 91177308-0d34-0410-b5e6-96231b3b80d8
---
 AST/Decl.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/AST/Decl.cpp b/AST/Decl.cpp
index b7f85e9a53..16233b1d82 100644
--- a/AST/Decl.cpp
+++ b/AST/Decl.cpp
@@ -242,7 +242,8 @@ FunctionDecl::~FunctionDecl() {
 }
 
 unsigned FunctionDecl::getNumParams() const {
-  return cast<FunctionTypeProto>(getType().getTypePtr())->getNumArgs();
+  if (isa<FunctionTypeNoProto>(getType())) return 0;
+  return cast<FunctionTypeProto>(getType())->getNumArgs();
 }
 
 void FunctionDecl::setParams(ParmVarDecl **NewParamInfo, unsigned NumParams) {
-- 
2.50.1