Subzero: Clean up a few areas.

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.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares aspects of the compilation that persist across
@@ skipping 15 matching lines @@
 #include "IceTypes.h"
 
 namespace Ice {
 
 class ClFlags;
 class FuncSigType;
 
 // This class collects rudimentary statistics during translation.
 class CodeStats {
   CodeStats(const CodeStats &) = delete;
-  // CodeStats &operator=(const CodeStats &) = delete;
+  CodeStats &operator=(const CodeStats &) = default;
 
 public:
   CodeStats()
       : InstructionsEmitted(0), RegistersSaved(0), FrameBytes(0), Spills(0),
         Fills(0) {}
   void reset() { *this = CodeStats(); }
   void updateEmitted(uint32_t InstCount) { InstructionsEmitted += InstCount; }
   void updateRegistersSaved(uint32_t Num) { RegistersSaved += Num; }
   void updateFrameBytes(uint32_t Bytes) { FrameBytes += Bytes; }
   void updateSpills() { ++Spills; }
@@ skipping 36 matching lines @@
   TargetArch getTargetArch() const { return Arch; }
   OptLevel getOptLevel() const { return Opt; }
 
   // When emitting assembly, we allow a string to be prepended to
   // names of translated functions.  This makes it easier to create an
   // execution test against a reference translator like llc, with both
   // translators using the same bitcode as input.
   IceString getTestPrefix() const { return TestPrefix; }
   IceString mangleName(const IceString &Name) const;
 
-  // The purpose of HasEmitted is to add a header comment at the
-  // beginning of assembly code emission, doing it once per file
-  // rather than once per function.
-  bool testAndSetHasEmittedFirstMethod() {
-    bool HasEmitted = HasEmittedFirstMethod;
-    HasEmittedFirstMethod = true;
-    return HasEmitted;
-  }
-
   // Manage Constants.
   // getConstant*() functions are not const because they might add
   // something to the constant pool.
   Constant *getConstantInt(Type Ty, int64_t Value);
   Constant *getConstantInt1(int8_t ConstantInt1);
   Constant *getConstantInt8(int8_t ConstantInt8);
   Constant *getConstantInt16(int16_t ConstantInt16);
   Constant *getConstantInt32(int32_t ConstantInt32);
   Constant *getConstantInt64(int64_t ConstantInt64);
   Constant *getConstantFloat(float Value);
@@ skipping 95 matching lines @@
   Ostream *StrEmit; // Stream for code emission
 
   ArenaAllocator Allocator;
   VerboseMask VMask;
   std::unique_ptr<class ConstantPool> ConstPool;
   Intrinsics IntrinsicsInfo;
   const TargetArch Arch;
   const OptLevel Opt;
   const IceString TestPrefix;
   const ClFlags &Flags;
-  bool HasEmittedFirstMethod;
   RandomNumberGenerator RNG;
   std::unique_ptr<ELFObjectWriter> ObjectWriter;
   CodeStats StatsFunction;
   CodeStats StatsCumulative;
   std::vector<TimerStack> Timers;
   std::vector<GlobalDeclaration *> GlobalDeclarations;
 
   // Private helpers for mangleName()
   typedef llvm::SmallVector<char, 32> ManglerVector;
   void incrementSubstitutions(ManglerVector &OldName) const;
@@ skipping 24 matching lines @@
 
 private:
   TimerIdT ID;
   GlobalContext *const Ctx;
   bool Active;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEGLOBALCONTEXT_H