Revert 106592 for now. It causes clang-selfhost build failure.

[oota-llvm.git] / lib / CompilerDriver / Plugin.cpp

diff --git a/lib/CompilerDriver/Plugin.cpp b/lib/CompilerDriver/Plugin.cpp
index 75abbd041d32cfa5d007a60b630ab4b1b20f43c2..0fdfef4c6a29b7044b93d01ceb7ebd590cf926f9 100644 (file)
--- a/lib/CompilerDriver/Plugin.cpp
+++ b/lib/CompilerDriver/Plugin.cpp
@@ -12,7 +12,8 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/CompilerDriver/Plugin.h"
-
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/System/Mutex.h"
 #include <algorithm>
 #include <vector>
 
@@ -28,6 +29,7 @@ namespace {
   static bool pluginListInitialized = false;
   typedef std::vector<const llvmc::BasePlugin*> PluginList;
   static PluginList Plugins;
+  static llvm::ManagedStatic<llvm::sys::SmartMutex<true> > PluginMutex;
 
   struct ByPriority {
     bool operator()(const llvmc::BasePlugin* lhs,
@@ -40,6 +42,7 @@ namespace {
 namespace llvmc {
 
   PluginLoader::PluginLoader() {
+    llvm::sys::SmartScopedLock<true> Lock(*PluginMutex);
     if (!pluginListInitialized) {
       for (PluginRegistry::iterator B = PluginRegistry::begin(),
              E = PluginRegistry::end(); B != E; ++B)
@@ -50,6 +53,7 @@ namespace llvmc {
   }
 
   PluginLoader::~PluginLoader() {
+    llvm::sys::SmartScopedLock<true> Lock(*PluginMutex);
     if (pluginListInitialized) {
       for (PluginList::iterator B = Plugins.begin(), E = Plugins.end();
            B != E; ++B)
@@ -58,16 +62,17 @@ namespace llvmc {
     pluginListInitialized = false;
   }
 
-  void PluginLoader::PopulateLanguageMap(LanguageMap& langMap) {
+  void PluginLoader::RunInitialization(LanguageMap& langMap,
+                                       CompilationGraph& graph) const
+  {
+    llvm::sys::SmartScopedLock<true> Lock(*PluginMutex);
     for (PluginList::iterator B = Plugins.begin(), E = Plugins.end();
-         B != E; ++B)
-      (*B)->PopulateLanguageMap(langMap);
-  }
-
-  void PluginLoader::PopulateCompilationGraph(CompilationGraph& graph) {
-    for (PluginList::iterator B = Plugins.begin(), E = Plugins.end();
-         B != E; ++B)
-      (*B)->PopulateCompilationGraph(graph);
+         B != E; ++B) {
+      const BasePlugin* BP = *B;
+      BP->PreprocessOptions();
+      BP->PopulateLanguageMap(langMap);
+      BP->PopulateCompilationGraph(graph);
+    }
   }
 
 }