From f6bd15038c08725223158811fc9225abf9884157 Mon Sep 17 00:00:00 2001
From: Eli Friedman <eli.friedman@gmail.com>
Date: Tue, 2 Jun 2009 07:10:30 +0000
Subject: [PATCH] If we recognize alloca, treat it as a builtin.  This fixes
 uses of alloca without declaring it.

llvm-svn: 72719
---
 clang/lib/CodeGen/CGBuiltin.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/clang/lib/CodeGen/CGBuiltin.cpp b/clang/lib/CodeGen/CGBuiltin.cpp
index a90b30404bdc..ec5738b28bd2 100644
--- a/clang/lib/CodeGen/CGBuiltin.cpp
+++ b/clang/lib/CodeGen/CGBuiltin.cpp
@@ -268,6 +268,7 @@ RValue CodeGenFunction::EmitBuiltinExpr(const FunctionDecl *FD,
     return RValue::get(Builder.CreateZExt(LHS, ConvertType(E->getType()),
                                           "tmp"));
   }
+  case Builtin::BIalloca:
   case Builtin::BI__builtin_alloca: {
     // FIXME: LLVM IR Should allow alloca with an i64 size!
     Value *Size = EmitScalarExpr(E->getArg(0));