Subzero: Initial implementation of multithreaded translation.

src/IceTargetLowering.h

 //===- subzero/src/IceTargetLowering.h - Lowering interface -----*- 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 the TargetLowering and LoweringContext
@@ skipping 184 matching lines @@
       const llvm::SmallBitVector &ExcludeRegisters) const = 0;
 
   virtual void emitVariable(const Variable *Var) const = 0;
 
   // Performs target-specific argument lowering.
   virtual void lowerArguments() = 0;
 
   virtual void addProlog(CfgNode *Node) = 0;
   virtual void addEpilog(CfgNode *Node) = 0;
 
-  virtual void emitConstants() const = 0;
-
   virtual ~TargetLowering() {}
 
 protected:
   TargetLowering(Cfg *Func);
   virtual void lowerAlloca(const InstAlloca *Inst) = 0;
   virtual void lowerArithmetic(const InstArithmetic *Inst) = 0;
   virtual void lowerAssign(const InstAssign *Inst) = 0;
   virtual void lowerBr(const InstBr *Inst) = 0;
   virtual void lowerCall(const InstCall *Inst) = 0;
   virtual void lowerCast(const InstCast *Inst) = 0;
@@ skipping 21 matching lines @@
   GlobalContext *Ctx;
   const bool RandomizeRegisterAllocation;
   bool HasComputedFrame;
   bool CallsReturnsTwice;
   // StackAdjustment keeps track of the current stack offset from its
   // natural location, as arguments are pushed for a function call.
   int32_t StackAdjustment;
   LoweringContext Context;
 };
 
-// TargetGlobalInitLowering is used for "lowering" global
-// initializers.  It is separated out from TargetLowering because it
-// does not require a Cfg.
-class TargetGlobalInitLowering {
-  TargetGlobalInitLowering(const TargetGlobalInitLowering &) = delete;
-  TargetGlobalInitLowering &operator=(const TargetGlobalInitLowering &) =
-      delete;
+// TargetGlobalLowering is used for "lowering" global initializers,
+// including the internal constant pool.  It is separated out from
+// TargetLowering because it does not require a Cfg.
+class TargetGlobalLowering {
+  TargetGlobalLowering(const TargetGlobalLowering &) = delete;
+  TargetGlobalLowering &operator=(const TargetGlobalLowering &) = delete;

[JF, 2015/01/23 17:22:43]

TargetGlobalLowering() = delete;

[Jim Stichnoth, 2015/01/23 21:54:02]

Done.  (also for TargetGlobalX8632)

 
 public:
-  static TargetGlobalInitLowering *createLowering(TargetArch Target,
-                                                  GlobalContext *Ctx);
-  virtual ~TargetGlobalInitLowering();
+  static TargetGlobalLowering *createLowering(GlobalContext *Ctx);
+  virtual ~TargetGlobalLowering();
 
-  virtual void lower(const VariableDeclaration &Var) = 0;
+  virtual void lowerInit(const VariableDeclaration &Var) const = 0;
+  virtual void lowerConstants(GlobalContext *Ctx) const = 0;
 
 protected:
-  TargetGlobalInitLowering(GlobalContext *Ctx) : Ctx(Ctx) {}
+  TargetGlobalLowering(GlobalContext *Ctx) : Ctx(Ctx) {}
   GlobalContext *Ctx;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERING_H