s390: optimize for int 64-bit operation and cleanup

src/s390/macro-assembler-s390.h

Index: src/s390/macro-assembler-s390.h
diff --git a/src/s390/macro-assembler-s390.h b/src/s390/macro-assembler-s390.h
index a3b57e9d4fa406bfb4cec9faaed3606313dcadc4..60be4c68945bbaf333541e8f216c5867880890f4 100644
--- a/src/s390/macro-assembler-s390.h
+++ b/src/s390/macro-assembler-s390.h
@@ -342,18 +342,22 @@ class MacroAssembler : public Assembler {
   void DivP(Register dividend, Register divider);
   void Div32(Register dst, Register src1, const MemOperand& src2);
   void Div32(Register dst, Register src1, Register src2);
-  void Div32(Register dst, Register src1, const Operand& src2);
   void DivU32(Register dst, Register src1, const MemOperand& src2);
   void DivU32(Register dst, Register src1, Register src2);
-  void DivU32(Register dst, Register src1, const Operand& src2);
+  void Div64(Register dst, Register src1, const MemOperand& src2);
+  void Div64(Register dst, Register src1, Register src2);
+  void DivU64(Register dst, Register src1, const MemOperand& src2);
+  void DivU64(Register dst, Register src1, Register src2);
 
   // Mod
   void Mod32(Register dst, Register src1, const MemOperand& src2);
   void Mod32(Register dst, Register src1, Register src2);
-  void Mod32(Register dst, Register src1, const Operand& src2);
   void ModU32(Register dst, Register src1, const MemOperand& src2);
   void ModU32(Register dst, Register src1, Register src2);
-  void ModU32(Register dst, Register src1, const Operand& src2);
+  void Mod64(Register dst, Register src1, const MemOperand& src2);
+  void Mod64(Register dst, Register src1, Register src2);
+  void ModU64(Register dst, Register src1, const MemOperand& src2);
+  void ModU64(Register dst, Register src1, Register src2);
 
   // Square root
   void Sqrt(DoubleRegister result, DoubleRegister input);
@@ -408,6 +412,25 @@ class MacroAssembler : public Assembler {
   void LoadFloat32(DoubleRegister dst, const MemOperand& opnd);
   void LoadFloat32ConvertToDouble(DoubleRegister dst, const MemOperand& mem);
 
+  void AddFloat32(DoubleRegister dst, const MemOperand& opnd,
+                  DoubleRegister scratch);
+  void AddFloat64(DoubleRegister dst, const MemOperand& opnd,
+                  DoubleRegister scratch);
+  void SubFloat32(DoubleRegister dst, const MemOperand& opnd,
+                  DoubleRegister scratch);
+  void SubFloat64(DoubleRegister dst, const MemOperand& opnd,
+                  DoubleRegister scratch);
+  void MulFloat32(DoubleRegister dst, const MemOperand& opnd,
+                  DoubleRegister scratch);
+  void MulFloat64(DoubleRegister dst, const MemOperand& opnd,
+                  DoubleRegister scratch);
+  void DivFloat32(DoubleRegister dst, const MemOperand& opnd,
+                  DoubleRegister scratch);
+  void DivFloat64(DoubleRegister dst, const MemOperand& opnd,
+                  DoubleRegister scratch);
+  void LoadFloat32ToDouble(DoubleRegister dst, const MemOperand& opnd,
+                           DoubleRegister scratch);
+
   // Load On Condition
   void LoadOnConditionP(Condition cond, Register dst, Register src);