[Isolates] Merge 6500:6700 from bleeding_edge to isolates.

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 902 matching lines @@
   positions_recorder()->WriteRecordedPositions();
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   // Opcode: FF /2 m64.
   emit_optional_rex_32(op);
   emit(0xFF);
   emit_operand(0x2, op);
 }
 
 
+// Calls directly to the given address using a relative offset.
+// Should only ever be used in Code objects for calls within the
+// same Code object. Should not be used when generating new code (use labels),
+// but only when patching existing code.
+void Assembler::call(Address target) {
+  positions_recorder()->WriteRecordedPositions();
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  // 1110 1000 #32-bit disp.
+  emit(0xE8);
+  Address source = pc_ + 4;
+  intptr_t displacement = target - source;
+  ASSERT(is_int32(displacement));
+  emitl(static_cast<int32_t>(displacement));
+}
+
+
 void Assembler::clc() {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0xF8);
 }
 
 void Assembler::cdq() {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0x99);
@@ skipping 235 matching lines @@
 void Assembler::imull(Register dst, Register src) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_optional_rex_32(dst, src);
   emit(0x0F);
   emit(0xAF);
   emit_modrm(dst, src);
 }
 
 
+void Assembler::imull(Register dst, const Operand& src) {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  emit_optional_rex_32(dst, src);
+  emit(0x0F);
+  emit(0xAF);
+  emit_operand(dst, src);
+}
+
+
 void Assembler::imull(Register dst, Register src, Immediate imm) {
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit_optional_rex_32(dst, src);
   if (is_int8(imm.value_)) {
     emit(0x6B);
     emit_modrm(dst, src);
     emit(imm.value_);
   } else {
     emit(0x69);
@@ skipping 1821 matching lines @@
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   emit(0x66);
   emit_optional_rex_32(dst, src);
   emit(0x0f);
   emit(0x2e);
   emit_sse_operand(dst, src);
 }
 
 
+void Assembler::movmskpd(Register dst, XMMRegister src) {
+  EnsureSpace ensure_space(this);
+  last_pc_ = pc_;
+  emit(0x66);
+  emit_optional_rex_32(dst, src);
+  emit(0x0f);
+  emit(0x50);
+  emit_sse_operand(dst, src);
+}
+
 
 void Assembler::emit_sse_operand(XMMRegister reg, const Operand& adr) {
   Register ireg = { reg.code() };
   emit_operand(ireg, adr);
 }
 
 
 void Assembler::emit_sse_operand(XMMRegister dst, XMMRegister src) {
   emit(0xC0 | (dst.low_bits() << 3) | src.low_bits());
 }
@@ skipping 17 matching lines @@
   EnsureSpace ensure_space(this);
   emitl(data);
 }
 
 
 // Relocation information implementations.
 
 void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) {
   ASSERT(rmode != RelocInfo::NONE);
   // Don't record external references unless the heap will be serialized.
-  if (rmode == RelocInfo::EXTERNAL_REFERENCE &&
-      !Serializer::enabled() &&
-      !FLAG_debug_code) {
-    return;
+  if (rmode == RelocInfo::EXTERNAL_REFERENCE) {
+#ifdef DEBUG
+    if (!Serializer::enabled()) {
+      Serializer::TooLateToEnableNow();
+    }
+#endif
+    if (!Serializer::enabled() && !FLAG_debug_code) {
+      return;
+    }
   }
   RelocInfo rinfo(pc_, rmode, data);
   reloc_info_writer.Write(&rinfo);
 }
 
 void Assembler::RecordJSReturn() {
   positions_recorder()->WriteRecordedPositions();
   EnsureSpace ensure_space(this);
   RecordRelocInfo(RelocInfo::JS_RETURN);
 }
@@ skipping 23 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