Implemented global redzones.

src/IceASanInstrumentation.h

+//===- subzero/src/IceASanInstrumentation.h - AddressSanitizer --*- C++ -*-===//
+//
+//                        The Subzero Code Generator
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// \brief Declares the AddressSanitizer instrumentation class.
+///
+/// This class is responsible for inserting redzones around global and stack
+/// variables, inserting code responsible for poisoning those redzones, and
+/// performing any other instrumentation necessary to implement
+/// AddressSanitizer.
+///
+//===----------------------------------------------------------------------===//
+
+#ifndef SUBZERO_SRC_ICEASANINSTRUMENTATION_H
+#define SUBZERO_SRC_ICEASANINSTRUMENTATION_H
+
+
+#include "IceInstrumentation.h"
+
+namespace Ice {
+
+class ASanInstrumentation : public Instrumentation {
+  ASanInstrumentation() = delete;
+  ASanInstrumentation(const ASanInstrumentation &) = delete;
+  ASanInstrumentation &operator=(const ASanInstrumentation &) = delete;
+
+public:
+  ASanInstrumentation(GlobalContext *Ctx) : Instrumentation(Ctx),
+                                            didInsertRedZones(false) {}
+  void instrumentGlobals(VariableDeclarationList &Globals) override;
+
+private:
+  static constexpr uint32_t RzSize = 32;
+  static const std::string RzPrefix;
+  bool didInsertRedZones;

[Jim Stichnoth, 2016/06/09 22:27:39]

capitalize field name per LLVM convention

[tlively, 2016/06/09 23:30:10]

Done.

+};
+} // end of namespace Ice
+
+#endif // SUBZERO_SRC_ICEASANINSTRUMENTATION_H