Introduce andp, notp, orp and xorp for x64 port

src/x64/ic-x64.cc

Index: src/x64/ic-x64.cc
diff --git a/src/x64/ic-x64.cc b/src/x64/ic-x64.cc
index 5449095570379f5a91a18ce3dd5230bdce53e489..ea118d076383cb32cff4ea8b46b0ce983a2e17ae 100644
--- a/src/x64/ic-x64.cc
+++ b/src/x64/ic-x64.cc
@@ -424,9 +424,9 @@ void KeyedLoadIC::GenerateGeneric(MacroAssembler* masm) {
   __ shr(rcx, Immediate(KeyedLookupCache::kMapHashShift));
   __ movl(rdi, FieldOperand(rax, String::kHashFieldOffset));
   __ shr(rdi, Immediate(String::kHashShift));
-  __ xor_(rcx, rdi);
+  __ xorp(rcx, rdi);
   int mask = (KeyedLookupCache::kCapacityMask & KeyedLookupCache::kHashMask);
-  __ and_(rcx, Immediate(mask));
+  __ andp(rcx, Immediate(mask));
 
   // Load the key (consisting of map and internalized string) from the cache and
   // check for match.