Subzero: Fix the g++ build (e.g. Windows).

src/PNaClTranslator.cpp

 //===- subzero/src/PNaClTranslator.cpp - ICE from bitcode -----------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the PNaCl bitcode file to Ice, to machine code
@@ skipping 1663 matching lines @@
     case naclbitc::ICMP_SGE:
       Cond = Ice::InstIcmp::Sge;
       return true;
     case naclbitc::ICMP_SLT:
       Cond = Ice::InstIcmp::Slt;
       return true;
     case naclbitc::ICMP_SLE:
       Cond = Ice::InstIcmp::Sle;
       return true;
     default:
+      // Make sure Cond is always initialized.
+      Cond = static_cast<Ice::InstIcmp::ICond>(0);
       return false;
     }
   }
 
   // Converts PNaCl bitcode Fcmp operator to corresponding ICE op.
   // Returns true if able to convert, false otherwise.
   bool convertNaClBitcFCompOpToIce(uint64_t Op,
                                    Ice::InstFcmp::FCond &Cond) const {
     switch (Op) {
     case naclbitc::FCMP_FALSE:
@@ skipping 38 matching lines @@
     case naclbitc::FCMP_ULE:
       Cond = Ice::InstFcmp::Ule;
       return true;
     case naclbitc::FCMP_UNE:
       Cond = Ice::InstFcmp::Une;
       return true;
     case naclbitc::FCMP_TRUE:
       Cond = Ice::InstFcmp::True;
       return true;
     default:
+      // Make sure Cond is always initialized.
+      Cond = static_cast<Ice::InstFcmp::FCond>(0);
       return false;
     }
   }
 
   // Creates an error instruction, generating a value of type Ty, and
   // adds a placeholder so that instruction indices line up.
   // Some instructions, such as a call, will not generate a value
   // if the return type is void. In such cases, a placeholder value
   // for the badly formed instruction is not needed. Hence, if Ty is
   // void, an error instruction is not appended.
@@ skipping 1186 matching lines @@
 
   if (TopLevelBlocks != 1) {
     errs() << IRFilename
            << ": Contains more than one module. Found: " << TopLevelBlocks
            << "\n";
     ErrorStatus = true;
   }
 }
 
 } // end of namespace Ice