Introduce leap, movzxbp, movzxwp, repmovsp and xchgp for x64 port

src/x64/deoptimizer-x64.cc

Index: src/x64/deoptimizer-x64.cc
diff --git a/src/x64/deoptimizer-x64.cc b/src/x64/deoptimizer-x64.cc
index dd2717bc12f145ca7c5a898888654b6fd5b9e570..4bc644defefe8924695d861d49c2bf523f6c874b 100644
--- a/src/x64/deoptimizer-x64.cc
+++ b/src/x64/deoptimizer-x64.cc
@@ -196,7 +196,7 @@ void Deoptimizer::EntryGenerator::Generate() {
   // Get the address of the location in the code object
   // and compute the fp-to-sp delta in register arg5.
   __ movp(arg_reg_4, Operand(rsp, kSavedRegistersAreaSize + 1 * kRegisterSize));
-  __ lea(arg5, Operand(rsp, kSavedRegistersAreaSize + 1 * kRegisterSize +
+  __ leap(arg5, Operand(rsp, kSavedRegistersAreaSize + 1 * kRegisterSize +
                             kPCOnStackSize));
 
   __ subp(arg5, rbp);
@@ -251,7 +251,7 @@ void Deoptimizer::EntryGenerator::Generate() {
   // Unwind the stack down to - but not including - the unwinding
   // limit and copy the contents of the activation frame to the input
   // frame description.
-  __ lea(rdx, Operand(rbx, FrameDescription::frame_content_offset()));
+  __ leap(rdx, Operand(rbx, FrameDescription::frame_content_offset()));
   Label pop_loop_header;
   __ jmp(&pop_loop_header);
   Label pop_loop;
@@ -281,7 +281,7 @@ void Deoptimizer::EntryGenerator::Generate() {
   // last FrameDescription**.
   __ movl(rdx, Operand(rax, Deoptimizer::output_count_offset()));
   __ movp(rax, Operand(rax, Deoptimizer::output_offset()));
-  __ lea(rdx, Operand(rax, rdx, times_pointer_size, 0));
+  __ leap(rdx, Operand(rax, rdx, times_pointer_size, 0));
   __ jmp(&outer_loop_header);
   __ bind(&outer_push_loop);
   // Inner loop state: rbx = current FrameDescription*, rcx = loop index.