Introduce xchgl, orl, roll, subl, testl and xorl into X64 assembler

src/x64/assembler-x64.h

Index: src/x64/assembler-x64.h
diff --git a/src/x64/assembler-x64.h b/src/x64/assembler-x64.h
index fd1e1e75d55db829fb6f1723543c8fab7611ada6..b4347830b0b458803fcefe82a3b9ec6a4abc51cb 100644
--- a/src/x64/assembler-x64.h
+++ b/src/x64/assembler-x64.h
@@ -756,7 +756,8 @@ class Assembler : public AssemblerBase {
   void cmovl(Condition cc, Register dst, const Operand& src);
 
   // Exchange two registers
-  void xchg(Register dst, Register src);
+  void xchgq(Register dst, Register src);
+  void xchgl(Register dst, Register src);
 
   // Arithmetics
   void addl(Register dst, Register src) {
@@ -991,6 +992,10 @@ class Assembler : public AssemblerBase {
     arithmetic_op(0x09, src, dst);
   }
 
+  void orl(const Operand& dst, Register src) {
+    arithmetic_op_32(0x09, src, dst);
+  }
+
   void or_(Register dst, Immediate src) {
     immediate_arithmetic_op(0x1, dst, src);
   }
@@ -1016,6 +1021,10 @@ class Assembler : public AssemblerBase {
     shift(dst, imm8, 0x0);
   }
 
+  void roll(Register dst, Immediate imm8) {
+    shift_32(dst, imm8, 0x0);
+  }
+
   void rcr(Register dst, Immediate imm8) {
     shift(dst, imm8, 0x3);
   }
@@ -1123,6 +1132,10 @@ class Assembler : public AssemblerBase {
     arithmetic_op_32(0x2B, dst, src);
   }
 
+  void subl(const Operand& dst, Register src) {
+    arithmetic_op_32(0x29, src, dst);
+  }
+
   void subl(const Operand& dst, Immediate src) {
     immediate_arithmetic_op_32(0x5, dst, src);
   }
@@ -1141,6 +1154,7 @@ class Assembler : public AssemblerBase {
   void testb(const Operand& op, Register reg);
   void testl(Register dst, Register src);
   void testl(Register reg, Immediate mask);
+  void testl(const Operand& op, Register reg);
   void testl(const Operand& op, Immediate mask);
   void testq(const Operand& op, Register reg);
   void testq(Register dst, Register src);
@@ -1166,6 +1180,10 @@ class Assembler : public AssemblerBase {
     immediate_arithmetic_op_32(0x6, dst, src);
   }
 
+  void xorl(const Operand& dst, Register src) {
+    arithmetic_op_32(0x31, src, dst);
+  }
+
   void xorl(const Operand& dst, Immediate src) {
     immediate_arithmetic_op_32(0x6, dst, src);
   }