Add support for deoptimization on x64. ...

src/x64/assembler-x64.cc

 // Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1260 matching lines @@
     emit(0x70 | cc);
     emit((offs - short_size) & 0xFF);
   } else {
     emit(0x70 | cc);
     emit(0x00);      // The displacement will be resolved later.
     L->link_to(pc_offset());
   }
 }
 
 
+void Assembler::j(Condition cc, byte* entry, RelocInfo::Mode rmode, Hint hint) {
+  EnsureSpace ensure_space(this);
+  RecordRelocInfo(rmode);
+  last_pc_ = pc_;
+  ASSERT((0 <= cc) && (cc < 16));
+  if (FLAG_emit_branch_hints && hint != no_hint) emit(hint);
+  // 0000 1111 1000 tttn #32-bit disp.
+  emit(0x0F);
+  emit(0x80 | cc);
+  emit(entry - (pc_ + sizeof(intptr_t)));
+}
+
+
 void Assembler::jmp(Label* L) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   const int short_size = sizeof(int8_t);
   const int long_size = sizeof(int32_t);
   if (L->is_bound()) {
     int offs = L->pos() - pc_offset() - 1;
     ASSERT(offs <= 0);
     if (is_int8(offs - short_size)) {
       // 1110 1011 #8-bit disp.
@@ skipping 651 matching lines @@
   if (is_int8(value.value_)) {
     emit(0x6A);
     emit(value.value_);  // Emit low byte of value.
   } else {
     emit(0x68);
     emitl(value.value_);
   }
 }
 
 
+void Assembler::push_imm32(int32_t imm32) {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  emit(0x68);
+  emitl(imm32);
+}
+
+
 void Assembler::pushfq() {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0x9C);
 }
 
 
 void Assembler::rdtsc() {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
@@ skipping 1045 matching lines @@
   // specially coded on x64 means that it is a relative 32 bit address, as used
   // by branch instructions.
   return (1 << rmode_) & kApplyMask;
 }
 
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_X64