gold plugin: call llvm_shutdown so that -stats works.

llvm-svn: 222787

llvm/test/tools/gold/stats.ll

@@ -0,0 +1,5 @@
+; RUN: llvm-as %s -o %t.o
+; RUN: ld -plugin %llvmshlibdir/LLVMgold.so  -shared \
+; RUN:    -plugin-opt=-stats %t.o -o %t2 2>&1 | FileCheck %s
+
+; CHECK: Statistics Collected

llvm/tools/gold/gold-plugin.cpp

@@ -28,6 +28,7 @@
 #include "llvm/PassManager.h"
 #include "llvm/Support/FormattedStream.h"
 #include "llvm/Support/Host.h"
+#include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/TargetRegistry.h"
 #include "llvm/Support/TargetSelect.h"
@@ -838,6 +839,8 @@ static ld_plugin_status all_symbols_read_hook(void) {
     Ret = allSymbolsReadHook(&ApiFile);
   }
 
+  llvm_shutdown();
+
   if (options::TheOutputType == options::OT_BC_ONLY ||
       options::TheOutputType == options::OT_DISABLE)
     exit(0);