Defining a new API for debug options that doesn't rely on static global cl::opts.
Summary:
This is based on the discussions from the LLVMDev thread:
http://lists.cs.uiuc.edu/pipermail/llvmdev/2014-August/075886.html
Reviewers: chandlerc
Reviewed By: chandlerc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D5389
llvm-svn: 219854
diff --git a/llvm/lib/Support/Options.cpp b/llvm/lib/Support/Options.cpp
new file mode 100644
index 0000000..7125845
--- /dev/null
+++ b/llvm/lib/Support/Options.cpp
@@ -0,0 +1,33 @@
+//===- llvm/Support/Options.cpp - Debug options support ---------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the helper objects for defining debug options using the
+// new API built on cl::opt, but not requiring the use of static globals.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Support/Options.h"
+#include "llvm/Support/ManagedStatic.h"
+
+using namespace llvm;
+
+OptionRegistry::~OptionRegistry() {
+ for (auto IT = Options.begin(); IT != Options.end(); ++IT)
+ delete IT->second;
+}
+
+void OptionRegistry::addOption(void *Key, cl::Option *O) {
+ assert(Options.find(Key) == Options.end() &&
+ "Argument with this key already registerd");
+ Options.insert(std::make_pair(Key, O));
+}
+
+static ManagedStatic<OptionRegistry> OR;
+
+OptionRegistry &OptionRegistry::instance() { return *OR; }