Subzero: Refine the memory usage report with -szstats .

src/IceGlobalContext.h

 //===- subzero/src/IceGlobalContext.h - Global context defs -----*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 88 matching lines @@
     CodeStats() { reset(); }
     void reset() { Stats.fill(0); }
     void update(CSTag Tag, uint32_t Count = 1) {
       assert(Tag < Stats.size());
       Stats[Tag] += Count;
     }
     void add(const CodeStats &Other) {
       for (uint32_t i = 0; i < Stats.size(); ++i)
         Stats[i] += Other.Stats[i];
     }
-    void dump(const std::string &Name, GlobalContext *Ctx);
+    /// Dumps the stats for the given Cfg.  If Func==nullptr, it identifies it
+    /// as the "final" cumulative stats instead as a specific function's name.
+    void dump(const Cfg *Func, GlobalContext *Ctx);
 
   private:
     std::array<uint32_t, CS_NUM> Stats;
   };
 
   /// TimerList is a vector of TimerStack objects, with extra methods
   /// to initialize and merge these vectors.
   class TimerList : public std::vector<TimerStack> {
     TimerList(const TimerList &) = delete;
     TimerList &operator=(const TimerList &) = delete;
@@ skipping 174 matching lines @@
 
   const Intrinsics &getIntrinsicsInfo() const { return IntrinsicsInfo; }
 
   ELFObjectWriter *getObjectWriter() const { return ObjectWriter.get(); }
 
   /// Reset stats at the beginning of a function.
   void resetStats() {
     if (BuildDefs::dump())
       ICE_TLS_GET_FIELD(TLS)->StatsFunction.reset();
   }
-  void dumpStats(const std::string &Name, bool Final = false);
+  void dumpStats(const Cfg *Func = nullptr);
   void statsUpdateEmitted(uint32_t InstCount) {
     if (!getFlags().getDumpStats())
       return;
     ThreadContext *Tls = ICE_TLS_GET_FIELD(TLS);
     Tls->StatsFunction.update(CodeStats::CS_InstCount, InstCount);
     Tls->StatsCumulative.update(CodeStats::CS_InstCount, InstCount);
   }
   void statsUpdateRegistersSaved(uint32_t Num) {
     if (!getFlags().getDumpStats())
       return;
@@ skipping 362 matching lines @@
   explicit OstreamLocker(GlobalContext *Ctx) : Ctx(Ctx) { Ctx->lockStr(); }
   ~OstreamLocker() { Ctx->unlockStr(); }
 
 private:
   GlobalContext *const Ctx;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEGLOBALCONTEXT_H