Subzero: Add memory usage to "-szstats" output.

src/IceGlobalContext.cpp

@@ -16,6 +16,8 @@
 #include <locale>  // locale
 #include <unordered_map>
 
+#include "llvm/Support/Timer.h"
+
 #include "IceCfg.h"
 #include "IceClFlags.h"
 #include "IceDefs.h"
@@ -105,6 +107,23 @@ public:
   UndefPool Undefs;
 };
 
+void CodeStats::dump(const IceString &Name, Ostream &Str) {
+  if (!ALLOW_DUMP)
+    return;
+  Str << "|" << Name << "|Inst Count  |" << InstructionsEmitted << "\n";
+  Str << "|" << Name << "|Regs Saved  |" << RegistersSaved << "\n";
+  Str << "|" << Name << "|Frame Bytes |" << FrameBytes << "\n";
+  Str << "|" << Name << "|Spills      |" << Spills << "\n";
+  Str << "|" << Name << "|Fills       |" << Fills << "\n";
+  Str << "|" << Name << "|Spills+Fills|" << Spills + Fills << "\n";
+  Str << "|" << Name << "|Memory Usage|";
+  if (ssize_t MemUsed = llvm::TimeRecord::getCurrentTime(false).getMemUsed())
+    Str << MemUsed;
+  else
+    Str << "(requires '-track-memory')";
+  Str << "\n";
+}
+
 GlobalContext::GlobalContext(Ostream *OsDump, Ostream *OsEmit,
                              ELFStreamer *ELFStr, VerboseMask Mask,
                              TargetArch Arch, OptLevel Opt,

src/IceGlobalContext.h

@@ -47,16 +47,7 @@ public:
   void updateFrameBytes(uint32_t Bytes) { FrameBytes += Bytes; }
   void updateSpills() { ++Spills; }
   void updateFills() { ++Fills; }
-  void dump(const IceString &Name, Ostream &Str) {
-    if (!ALLOW_DUMP)
-      return;
-    Str << "|" << Name << "|Inst Count  |" << InstructionsEmitted << "\n";
-    Str << "|" << Name << "|Regs Saved  |" << RegistersSaved << "\n";
-    Str << "|" << Name << "|Frame Bytes |" << FrameBytes << "\n";
-    Str << "|" << Name << "|Spills      |" << Spills << "\n";
-    Str << "|" << Name << "|Fills       |" << Fills << "\n";
-    Str << "|" << Name << "|Spills+Fills|" << Spills + Fills << "\n";
-  }
+  void dump(const IceString &Name, Ostream &Str);
 
 private:
   uint32_t InstructionsEmitted;