Created Ice::Instrumentation base class and accompanying hooks.

src/IceClFlags.def

 //===- subzero/src/IceClFlags.def - Cl Flags for translation ----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 239 matching lines @@
                                                                                \
   X(ReorderGlobalVariables, bool, dev_opt_flag, "reorder-global-variables",    \
     cl::desc("Randomize global data ordering"), cl::init(false))               \
                                                                                \
   X(ReorderPooledConstants, bool, dev_opt_flag, "reorder-pooled-constants",    \
     cl::desc("Randomize constant pool entry ordering"), cl::init(false))       \
                                                                                \
   X(RepeatRegAlloc, bool, dev_opt_flag, "regalloc-repeat",                     \
     cl::desc("Repeat register allocation until convergence"), cl::init(true))  \
                                                                                \
+  /* TODO(tlively): Generalize this to handle more sanitizers */               \
+  X(SanitizeAddresses, bool, dev_opt_flag, "fsanitize-address",                \
+    cl::desc("Instrument compiled code with Address Sanitizer"),               \
+    cl::init(false))                                                           \
+                                                                               \
   X(ShouldDoNopInsertion, bool, dev_opt_flag, "nop-insertion",                 \
     cl::desc("Randomly insert NOPs"), cl::init(false))                         \
                                                                                \
   X(SkipUnimplemented, bool, dev_opt_flag, "skip-unimplemented",               \
     cl::desc("Skip through unimplemented lowering code instead of aborting."), \
     cl::init(false))                                                           \
                                                                                \
   X(SubzeroTimingEnabled, bool, dev_opt_flag, "timing",                        \
     cl::desc("Enable breakdown timing of Subzero translation"))                \
                                                                                \
@@ skipping 80 matching lines @@
                    "Use all verbose options except 'regalloc,global_init'"),   \
         clEnumValN(Ice::IceV_None, "none", "No verbosity"), clEnumValEnd))     \
                                                                                \
   X(VerboseFocusOnString, std::string, dev_opt_flag, "verbose-focus",          \
     cl::desc("Override with -verbose=none except for specified functions"),    \
     cl::init(":"))                                                             \
                                                                                \
   X(WasmBoundsCheck, bool, dev_opt_flag, "wasm-bounds-check",                  \
     cl::desc("Add bounds checking code in WASM frontend"),                     \
     cl::init(true))
+
 //#define X(Name, Type, ClType, ...)
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICECLFLAGS_DEF