Subzero: Add branch optimization.

src/llvm2ice.cpp

 //===- subzero/src/llvm2ice.cpp - Driver for testing ----------------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file defines a driver that uses LLVM capabilities to parse a
@@ skipping 148 matching lines @@
   Flags.DisableGlobals = DisableGlobals;
   Flags.FunctionSections = FunctionSections;
   Flags.UseSandboxing = UseSandboxing;
   Flags.DumpStats = DumpStats;
   Flags.DefaultGlobalPrefix = DefaultGlobalPrefix;
   Flags.DefaultFunctionPrefix = DefaultFunctionPrefix;
 
   Ice::GlobalContext Ctx(Ls, Os, VMask, TargetArch, OptLevel, TestPrefix,
                          Flags);
 
+  int ErrorStatus = 0;
   if (BuildOnRead) {
     Ice::PNaClTranslator Translator(&Ctx, Flags);
     Translator.translate(IRFilename);
-    return Translator.getErrorStatus();
+    ErrorStatus = Translator.getErrorStatus();
   } else {
     // Parse the input LLVM IR file into a module.
     SMDiagnostic Err;
     Ice::Timer T;
     Module *Mod =
         NaClParseIRFile(IRFilename, InputFileFormat, Err, getGlobalContext());
 
     if (SubzeroTimingEnabled) {
       std::cerr << "[Subzero timing] IR Parsing: " << T.getElapsedSec()
                 << " sec\n";
     }
 
     if (!Mod) {
       Err.print(argv[0], errs());
       return 1;
     }
 
     Ice::Converter Converter(Mod, &Ctx, Flags);
     Converter.convertToIce();
-    return Converter.getErrorStatus();
+    ErrorStatus = Converter.getErrorStatus();
   }
+  const bool FinalStats = true;
+  Ctx.dumpStats("_FINAL_", FinalStats);
+  return ErrorStatus;
 }