- Initialize "--no-builtin" to "false".

- Testcase for r56885.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56886 91177308-0d34-0410-b5e6-96231b3b80d8

lib/CodeGen/SelectionDAG/SelectionDAG.cpp

@@ -42,7 +42,7 @@
 using namespace llvm;
 
 static cl::opt<bool>
-NoBuiltin("no-builtin",
+NoBuiltin("no-builtin", cl::init(false),
            cl::desc("Don't recognize built-in functions that do not begin "
                     "with `__builtin_' as prefix"));
 

test/CodeGen/X86/darwin-bzero.ll

@@ -1,4 +1,5 @@
 ; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin10 | grep __bzero
+; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin10 -no-builtin | grep _bzero
 
 declare void @llvm.memset.i32(i8*, i8, i32, i32)