Land the Fan (disabled)

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 4259e9b50ef5ccbfd5d5b8f2452b6052697a5543..df735daccbc83a2568a48dee331473eaff5f48fc 100644
--- a/src/x64/assembler-x64.h
+++ b/src/x64/assembler-x64.h
@@ -443,6 +443,7 @@ class Operand BASE_EMBEDDED {
   V(cmp)                                \
   V(dec)                                \
   V(idiv)                               \
+  V(div)                                \
   V(imul)                               \
   V(inc)                                \
   V(lea)                                \
@@ -1435,6 +1436,7 @@ class Assembler : public AssemblerBase {
   // Divide edx:eax by lower 32 bits of src.  Quotient in eax, remainder in edx
   // when size is 32.
   void emit_idiv(Register src, int size);
+  void emit_div(Register src, int size);
 
   // Signed multiply instructions.
   // rdx:rax = rax * src when size is 64 or edx:eax = eax * src when size is 32.
@@ -1455,6 +1457,7 @@ class Assembler : public AssemblerBase {
   void emit_mov(const Operand& dst, Immediate value, int size);
 
   void emit_movzxb(Register dst, const Operand& src, int size);
+  void emit_movzxb(Register dst, Register src, int size);
   void emit_movzxw(Register dst, const Operand& src, int size);
   void emit_movzxw(Register dst, Register src, int size);
 
@@ -1514,9 +1517,12 @@ class Assembler : public AssemblerBase {
   void emit_test(Register reg, Immediate mask, int size);
   void emit_test(const Operand& op, Register reg, int size);
   void emit_test(const Operand& op, Immediate mask, int size);
+  void emit_test(Register reg, const Operand& op, int size) {
+    return emit_test(op, reg, size);
+  }
 
-  // Exchange two registers
   void emit_xchg(Register dst, Register src, int size);
+  void emit_xchg(Register dst, const Operand& src, int size);
 
   void emit_xor(Register dst, Register src, int size) {
     if (size == kInt64Size && dst.code() == src.code()) {