llvm-6502/lib/CompilerDriver/Plugin.cpp
Mikhail Glushenkov f188178a2f Reorganize llvmc code.
Move the code from 'llvmc/driver' into a new CompilerDriver library, and change
the build system accordingly. Makes it easier for projects using LLVM to build
their own llvmc-based drivers.

Tested with objdir != srcdir.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65821 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-02 09:01:14 +00:00

74 lines
2.1 KiB
C++

//===--- Plugin.cpp - The LLVM Compiler Driver ------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open
// Source License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Plugin support.
//
//===----------------------------------------------------------------------===//
#include "llvm/CompilerDriver/Plugin.h"
#include <algorithm>
#include <vector>
namespace {
// Registry::Add<> does not do lifetime management (probably issues
// with static constructor/destructor ordering), so we have to
// implement it here.
//
// All this static registration/life-before-main model seems
// unnecessary convoluted to me.
static bool pluginListInitialized = false;
typedef std::vector<const llvmc::BasePlugin*> PluginList;
static PluginList Plugins;
struct ByPriority {
bool operator()(const llvmc::BasePlugin* lhs,
const llvmc::BasePlugin* rhs) {
return lhs->Priority() < rhs->Priority();
}
};
}
namespace llvmc {
PluginLoader::PluginLoader() {
if (!pluginListInitialized) {
for (PluginRegistry::iterator B = PluginRegistry::begin(),
E = PluginRegistry::end(); B != E; ++B)
Plugins.push_back(B->instantiate());
std::sort(Plugins.begin(), Plugins.end(), ByPriority());
}
pluginListInitialized = true;
}
PluginLoader::~PluginLoader() {
if (pluginListInitialized) {
for (PluginList::iterator B = Plugins.begin(), E = Plugins.end();
B != E; ++B)
delete (*B);
}
pluginListInitialized = false;
}
void PluginLoader::PopulateLanguageMap(LanguageMap& langMap) {
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);
}
}