[Isolates] Merge crankshaft (r5922 from bleeding_edge).

src/x64/assembler-x64.cc

Index: src/x64/assembler-x64.cc
diff --git a/src/x64/assembler-x64.cc b/src/x64/assembler-x64.cc
index c7d160d971ade38a206e1fcab070940bf6e7b577..0e4b2620a44aab04d0c3223d0a77757949c533ae 100644
--- a/src/x64/assembler-x64.cc
+++ b/src/x64/assembler-x64.cc
@@ -1,4 +1,4 @@
-// Copyright 2009 the V8 project authors. All rights reserved.
+// 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:
@@ -44,10 +44,11 @@ CpuFeatures::CpuFeatures()
       found_by_runtime_probing_(0) {
 }
 
-void CpuFeatures::Probe()  {
+
+void CpuFeatures::Probe(bool portable)  {
   ASSERT(HEAP->HasBeenSetup());
-  ASSERT(supported_ == kDefaultCpuFeatures);
-  if (Serializer::enabled()) {
+  supported_ = kDefaultCpuFeatures;
+  if (portable && Serializer::enabled()) {
     supported_ |= OS::CpuFeaturesImpliedByPlatform();
     return;  // No features if we might serialize.
   }
@@ -133,7 +134,7 @@ void CpuFeatures::Probe()  {
   found_by_runtime_probing_ &= ~kDefaultCpuFeatures;
   uint64_t os_guarantees = OS::CpuFeaturesImpliedByPlatform();
   supported_ |= os_guarantees;
-  found_by_runtime_probing_ &= ~os_guarantees;
+  found_by_runtime_probing_ &= portable ? ~os_guarantees : 0;
   // SSE2 and CMOV must be available on an X64 CPU.
   ASSERT(IsSupported(CPUID));
   ASSERT(IsSupported(SSE2));
@@ -824,6 +825,7 @@ void Assembler::bts(const Operand& dst, Register src) {
 
 
 void Assembler::call(Label* L) {
+  positions_recorder()->WriteRecordedPositions();
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   // 1110 1000 #32-bit disp.
@@ -855,6 +857,7 @@ void Assembler::call(Handle<Code> target, RelocInfo::Mode rmode) {
 
 
 void Assembler::call(Register adr) {
+  positions_recorder()->WriteRecordedPositions();
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   // Opcode: FF /2 r64.
@@ -865,6 +868,7 @@ void Assembler::call(Register adr) {
 
 
 void Assembler::call(const Operand& op) {
+  positions_recorder()->WriteRecordedPositions();
   EnsureSpace ensure_space(this);
   last_pc_ = pc_;
   // Opcode: FF /2 m64.
@@ -2936,6 +2940,12 @@ void Assembler::emit_sse_operand(Register dst, XMMRegister src) {
 }
 
 
+void Assembler::dd(uint32_t data) {
+  EnsureSpace ensure_space(this);
+  emitl(data);
+}
+
+
 // Relocation information implementations.
 
 void Assembler::RecordRelocInfo(RelocInfo::Mode rmode, intptr_t data) {
@@ -2965,7 +2975,7 @@ void Assembler::RecordDebugBreakSlot() {
 
 
 void Assembler::RecordComment(const char* msg) {
-  if (FLAG_debug_code) {
+  if (FLAG_code_comments) {
     EnsureSpace ensure_space(this);
     RecordRelocInfo(RelocInfo::COMMENT, reinterpret_cast<intptr_t>(msg));
   }