Import Clang, at r72732.

1 files changed, 50 insertions, 0 deletions

diff --git a/include/clang/Analysis/PathSensitive/GRBlockCounter.h b/include/clang/Analysis/PathSensitive/GRBlockCounter.h
new file mode 100644
index 0000000..b4fd270
--- /dev/null
+++ b/include/clang/Analysis/PathSensitive/GRBlockCounter.h
@@ -0,0 +1,50 @@
+//==- GRBlockCounter.h - ADT for counting block visits -------------*- C++ -*-//
+//             
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+//  This file defines GRBlockCounter, an abstract data type used to count
+//  the number of times a given block has been visited along a path
+//  analyzed by GRCoreEngine.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_ANALYSIS_GRBLOCKCOUNTER
+#define LLVM_CLANG_ANALYSIS_GRBLOCKCOUNTER
+
+namespace llvm {
+  class BumpPtrAllocator;
+}
+
+namespace clang {
+
+class GRBlockCounter {
+  void* Data;
+  
+  GRBlockCounter(void* D) : Data(D) {}  
+
+public:
+  GRBlockCounter() : Data(0) {}
+  
+  unsigned getNumVisited(unsigned BlockID) const;
+  
+  class Factory {
+    void* F;
+  public:
+    Factory(llvm::BumpPtrAllocator& Alloc);
+    ~Factory();
+    
+    GRBlockCounter GetEmptyCounter();
+    GRBlockCounter IncrementCount(GRBlockCounter BC, unsigned BlockID);
+  };
+  
+  friend class Factory;
+};
+
+} // end clang namespace
+  
+#endif