Subzero: Partial implementation of global initializers.

src/IceTargetLoweringX8632.h

 //===- subzero/src/IceTargetLoweringX8632.h - x86-32 lowering ---*- 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 TargetLoweringX8632 class, which
@@ skipping 91 matching lines @@
   // instructions that guarantee that the Operand kind is one of those
   // indicated by the LegalMask (a bitmask of allowed kinds).  If the
   // input Operand is known to already meet the constraints, it may be
   // simply returned as the result, without creating any new
   // instructions or operands.
   enum OperandLegalization {
     Legal_None = 0,
     Legal_Reg = 1 << 0, // physical register, not stack location
     Legal_Imm = 1 << 1,
     Legal_Mem = 1 << 2, // includes [eax+4*ecx] as well as [esp+12]
+    // TODO(stichnot): LEAHACK: remove Legal_Reloc once a proper
+    // emitter is used.
+    Legal_Reloc = 1 << 3,
     Legal_All = ~Legal_None
   };
   typedef uint32_t LegalMask;
-  Operand *legalize(Operand *From, LegalMask Allowed = Legal_All,
+  Operand *legalize(Operand *From, LegalMask Allowed = Legal_All & ~Legal_Reloc,
                     bool AllowOverlap = false,
                     int32_t RegNum = Variable::NoRegister);
   Variable *legalizeToVar(Operand *From, bool AllowOverlap = false,
                           int32_t RegNum = Variable::NoRegister);
   // Turn a pointer operand into a memory operand that can be
   // used by a real load/store operation. Legalizes the operand as well.
   // This is a nop if the operand is already a legal memory operand.
   OperandX8632Mem *FormMemoryOperand(Operand *Ptr, Type Ty);
 
   Variable *makeReg(Type Ty, int32_t RegNum = Variable::NoRegister);
@@ skipping 158 matching lines @@
   VarList PhysicalRegisters;
   static IceString RegNames[];
 
 private:
   TargetX8632(const TargetX8632 &) LLVM_DELETED_FUNCTION;
   TargetX8632 &operator=(const TargetX8632 &) LLVM_DELETED_FUNCTION;
   virtual ~TargetX8632() {}
   template <typename T> void emitConstantPool() const;
 };
 
+class TargetGlobalInitX8632 : public TargetGlobalInitLowering {
+public:
+  static TargetGlobalInitLowering *create(GlobalContext *Ctx) {
+    return new TargetGlobalInitX8632(Ctx);
+  }
+  virtual void lower(const IceString &Name, SizeT Align, bool IsInternal,
+                     bool IsConst, bool IsZeroInitializer, SizeT Size,
+                     const char *Data, bool DisableTranslation);
+
+protected:
+  TargetGlobalInitX8632(GlobalContext *Ctx);
+
+private:
+  TargetGlobalInitX8632(const TargetGlobalInitX8632 &) LLVM_DELETED_FUNCTION;
+  TargetGlobalInitX8632 &
+  operator=(const TargetGlobalInitX8632 &) LLVM_DELETED_FUNCTION;
+  virtual ~TargetGlobalInitX8632() {}
+};
+
 template <> void ConstantFloat::emit(GlobalContext *Ctx) const;
 template <> void ConstantDouble::emit(GlobalContext *Ctx) const;
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGX8632_H