From 3fa61eb199e642d18b9bba837225b16e1d9ecbb2 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Mon, 13 Jan 2003 00:52:43 +0000
Subject: Fix static initializer ordering dependency

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5236 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Support/Annotation.cpp | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

(limited to 'lib/Support/Annotation.cpp')

diff --git a/lib/Support/Annotation.cpp b/lib/Support/Annotation.cpp
index e876bf4..96ead52 100644
--- a/lib/Support/Annotation.cpp
+++ b/lib/Support/Annotation.cpp
@@ -20,7 +20,22 @@ static IDMapType &getIDMap() { static IDMapType TheMap; return TheMap; }
 // On demand annotation creation support...
 typedef Annotation *(*AnnFactory)(AnnotationID, const Annotable *, void *);
 typedef map<unsigned, pair<AnnFactory,void*> > FactMapType;
-static FactMapType &getFactMap() { static FactMapType FactMap; return FactMap; }
+
+static FactMapType *TheFactMap = 0;
+static FactMapType &getFactMap() {
+  if (TheFactMap == 0)
+    TheFactMap = new FactMapType();
+  return *TheFactMap;
+}
+
+static void eraseFromFactMap(unsigned ID) {
+  assert(TheFactMap && "No entries found!");
+  TheFactMap->erase(ID);
+  if (TheFactMap->empty()) {   // Delete when empty
+    delete TheFactMap;
+    TheFactMap = 0;
+  }
+}
 
 
 AnnotationID AnnotationManager::getID(const string &Name) {  // Name -> ID
@@ -64,7 +79,7 @@ void AnnotationManager::registerAnnotationFactory(AnnotationID ID,
   if (F)
     getFactMap()[ID.ID] = make_pair(F, ExtraData);
   else
-    getFactMap().erase(ID.ID);
+    eraseFromFactMap(ID.ID);
 }
 
 // createAnnotation - Create an annotation of the specified ID for the
-- 
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