Subzero: Add the "llvm2ice -ffunction-sections" argument.

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 41 matching lines @@
     cl::values(
         clEnumValN(Ice::Target_X8632, "x8632", "x86-32"),
         clEnumValN(Ice::Target_X8632, "x86-32", "x86-32 (same as x8632)"),
         clEnumValN(Ice::Target_X8632, "x86_32", "x86-32 (same as x8632)"),
         clEnumValN(Ice::Target_X8664, "x8664", "x86-64"),
         clEnumValN(Ice::Target_X8664, "x86-64", "x86-64 (same as x8664)"),
         clEnumValN(Ice::Target_X8664, "x86_64", "x86-64 (same as x8664)"),
         clEnumValN(Ice::Target_ARM32, "arm", "arm32"),
         clEnumValN(Ice::Target_ARM32, "arm32", "arm32 (same as arm)"),
         clEnumValN(Ice::Target_ARM64, "arm64", "arm64"), clEnumValEnd));
+static cl::opt<bool>
+    FunctionSections("ffunction-sections",
+                     cl::desc("Emit functions into separate sections"));
 static cl::opt<Ice::OptLevel>
 OptLevel(cl::desc("Optimization level"), cl::init(Ice::Opt_m1),
          cl::value_desc("level"),
          cl::values(clEnumValN(Ice::Opt_m1, "Om1", "-1"),
                     clEnumValN(Ice::Opt_m1, "O-1", "-1"),
                     clEnumValN(Ice::Opt_0, "O0", "0"),
                     clEnumValN(Ice::Opt_1, "O1", "1"),
                     clEnumValN(Ice::Opt_2, "O2", "2"), clEnumValEnd));
 static cl::opt<std::string> IRFilename(cl::Positional, cl::desc("<IR file>"),
                                        cl::init("-"));
@@ skipping 47 matching lines @@
   raw_os_ostream *Os =
       new raw_os_ostream(OutputFilename == "-" ? std::cout : Ofs);
   Os->SetUnbuffered();
   std::ofstream Lfs;
   if (LogFilename != "-") {
     Lfs.open(LogFilename.c_str(), std::ofstream::out);
   }
   raw_os_ostream *Ls = new raw_os_ostream(LogFilename == "-" ? std::cout : Lfs);
   Ls->SetUnbuffered();
 
-  Ice::GlobalContext Ctx(Ls, Os, VMask, TargetArch, OptLevel, TestPrefix);
-
   Ice::ClFlags Flags;
   Flags.DisableInternal = DisableInternal;
   Flags.SubzeroTimingEnabled = SubzeroTimingEnabled;
   Flags.DisableTranslation = DisableTranslation;
   Flags.DisableGlobals = DisableGlobals;
+  Flags.FunctionSections = FunctionSections;
+
+  Ice::GlobalContext Ctx(Ls, Os, VMask, TargetArch, OptLevel, TestPrefix,
+                         Flags);
 
   if (BuildOnRead) {
-    Ice::PNaClTranslator Translator(&Ctx, Flags);
+    Ice::PNaClTranslator Translator(&Ctx);
     Translator.translate(IRFilename);
     return 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(&Ctx, Flags);
+    Ice::Converter Converter(&Ctx);
     Converter.convertToIce(Mod);
     return Converter.getErrorStatus();
   }
 }