1 files changed, 103 insertions, 0 deletions
diff --git a/lib/VMCore/LLVMContextImpl.cpp b/lib/VMCore/LLVMContextImpl.cpp
new file mode 100644
index 0000000..b4553dd
--- /dev/null
+++ b/lib/VMCore/LLVMContextImpl.cpp
@@ -0,0 +1,103 @@
+//===-- LLVMContextImpl.cpp - Implement LLVMContextImpl -------------------===//
+//
+//                     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 opaque LLVMContextImpl.
+//
+//===----------------------------------------------------------------------===//
+
+#include "LLVMContextImpl.h"
+#include <algorithm>
+
+LLVMContextImpl::LLVMContextImpl(LLVMContext &C)
+  : TheTrueVal(0), TheFalseVal(0),
+    VoidTy(C, Type::VoidTyID),
+    LabelTy(C, Type::LabelTyID),
+    FloatTy(C, Type::FloatTyID),
+    DoubleTy(C, Type::DoubleTyID),
+    MetadataTy(C, Type::MetadataTyID),
+    X86_FP80Ty(C, Type::X86_FP80TyID),
+    FP128Ty(C, Type::FP128TyID),
+    PPC_FP128Ty(C, Type::PPC_FP128TyID),
+    Int1Ty(C, 1),
+    Int8Ty(C, 8),
+    Int16Ty(C, 16),
+    Int32Ty(C, 32),
+    Int64Ty(C, 64),
+    AlwaysOpaqueTy(new OpaqueType(C)) {
+  // Make sure the AlwaysOpaqueTy stays alive as long as the Context.
+  AlwaysOpaqueTy->addRef();
+  OpaqueTypes.insert(AlwaysOpaqueTy);
+}
+
+namespace {
+struct DropReferences {
+  // Takes the value_type of a ConstantUniqueMap's internal map, whose 'second'
+  // is a Constant*.
+  template<typename PairT>
+  void operator()(const PairT &P) {
+    P.second->dropAllReferences();
+  }
+};
+}
+
+LLVMContextImpl::~LLVMContextImpl() {
+  std::for_each(ExprConstants.map_begin(), ExprConstants.map_end(),
+                DropReferences());
+  std::for_each(ArrayConstants.map_begin(), ArrayConstants.map_end(),
+                DropReferences());
+  std::for_each(StructConstants.map_begin(), StructConstants.map_end(),
+                DropReferences());
+  std::for_each(UnionConstants.map_begin(), UnionConstants.map_end(),
+                DropReferences());
+  std::for_each(VectorConstants.map_begin(), VectorConstants.map_end(),
+                DropReferences());
+  ExprConstants.freeConstants();
+  ArrayConstants.freeConstants();
+  StructConstants.freeConstants();
+  UnionConstants.freeConstants();
+  VectorConstants.freeConstants();
+  AggZeroConstants.freeConstants();
+  NullPtrConstants.freeConstants();
+  UndefValueConstants.freeConstants();
+  InlineAsms.freeConstants();
+  for (IntMapTy::iterator I = IntConstants.begin(), E = IntConstants.end(); 
+       I != E; ++I) {
+    delete I->second;
+  }
+  for (FPMapTy::iterator I = FPConstants.begin(), E = FPConstants.end(); 
+       I != E; ++I) {
+    delete I->second;
+  }
+  AlwaysOpaqueTy->dropRef();
+  for (OpaqueTypesTy::iterator I = OpaqueTypes.begin(), E = OpaqueTypes.end();
+       I != E; ++I) {
+    (*I)->AbstractTypeUsers.clear();
+    delete *I;
+  }
+  // Destroy MDNodes.  ~MDNode can move and remove nodes between the MDNodeSet
+  // and the NonUniquedMDNodes sets, so copy the values out first.
+  SmallVector<MDNode*, 8> MDNodes;
+  MDNodes.reserve(MDNodeSet.size() + NonUniquedMDNodes.size());
+  for (FoldingSetIterator<MDNode> I = MDNodeSet.begin(), E = MDNodeSet.end();
+       I != E; ++I) {
+    MDNodes.push_back(&*I);
+  }
+  MDNodes.append(NonUniquedMDNodes.begin(), NonUniquedMDNodes.end());
+  for (SmallVector<MDNode*, 8>::iterator I = MDNodes.begin(),
+         E = MDNodes.end(); I != E; ++I) {
+    (*I)->destroy();
+  }
+  assert(MDNodeSet.empty() && NonUniquedMDNodes.empty() &&
+         "Destroying all MDNodes didn't empty the Context's sets.");
+  // Destroy MDStrings.
+  for (StringMap<MDString*>::iterator I = MDStringCache.begin(),
+         E = MDStringCache.end(); I != E; ++I) {
+    delete I->second;
+  }
+}