Merge V8 at 3.9.24.13

Bug: 5688872
Change-Id: Id0aa8d23375030494d3189c31774059c0f5398fc

1 files changed, 67 insertions, 52 deletions

diff --git a/src/assembler.h b/src/assembler.h
index d58034df..918a2a67 100644
--- a/src/assembler.h
+++ b/src/assembler.h
@@ -30,19 +30,27 @@
 
 // The original source code covered by the above license above has been
 // modified significantly by Google Inc.
-// Copyright 2011 the V8 project authors. All rights reserved.
+// Copyright 2012 the V8 project authors. All rights reserved.
 
 #ifndef V8_ASSEMBLER_H_
 #define V8_ASSEMBLER_H_
 
+#include "v8.h"
+
 #include "allocation.h"
+#include "builtins.h"
 #include "gdb-jit.h"
+#include "isolate.h"
 #include "runtime.h"
 #include "token.h"
 
 namespace v8 {
+
+class ApiFunction;
+
 namespace internal {
 
+struct StatsCounter;
 const unsigned kNoASTId = -1;
 // -----------------------------------------------------------------------------
 // Platform independent assembler base class.
@@ -59,21 +67,6 @@ class AssemblerBase: public Malloced {
   int jit_cookie_;
 };
 
-// -----------------------------------------------------------------------------
-// Common double constants.
-
-class DoubleConstant: public AllStatic {
- public:
-  static const double min_int;
-  static const double one_half;
-  static const double minus_zero;
-  static const double zero;
-  static const double uint8_max_value;
-  static const double negative_infinity;
-  static const double canonical_non_hole_nan;
-  static const double the_hole_nan;
-};
-
 
 // -----------------------------------------------------------------------------
 // Labels represent pc locations; they are typically jump or call targets.
@@ -143,6 +136,9 @@ class Label BASE_EMBEDDED {
 };
 
 
+enum SaveFPRegsMode { kDontSaveFPRegs, kSaveFPRegs };
+
+
 // -----------------------------------------------------------------------------
 // Relocation information
 
@@ -216,8 +212,9 @@ class RelocInfo BASE_EMBEDDED {
 
 
   RelocInfo() {}
-  RelocInfo(byte* pc, Mode rmode, intptr_t data)
-      : pc_(pc), rmode_(rmode), data_(data) {
+
+  RelocInfo(byte* pc, Mode rmode, intptr_t data, Code* host)
+      : pc_(pc), rmode_(rmode), data_(data), host_(host) {
   }
 
   static inline bool IsConstructCall(Mode mode) {
@@ -226,6 +223,9 @@ class RelocInfo BASE_EMBEDDED {
   static inline bool IsCodeTarget(Mode mode) {
     return mode <= LAST_CODE_ENUM;
   }
+  static inline bool IsEmbeddedObject(Mode mode) {
+    return mode == EMBEDDED_OBJECT;
+  }
   // Is the relocation mode affected by GC?
   static inline bool IsGCRelocMode(Mode mode) {
     return mode <= LAST_GCED_ENUM;
@@ -258,12 +258,13 @@ class RelocInfo BASE_EMBEDDED {
   void set_pc(byte* pc) { pc_ = pc; }
   Mode rmode() const {  return rmode_; }
   intptr_t data() const { return data_; }
+  Code* host() const { return host_; }
 
   // Apply a relocation by delta bytes
   INLINE(void apply(intptr_t delta));
 
   // Is the pointer this relocation info refers to coded like a plain pointer
-  // or is it strange in some way (eg relative or patched into a series of
+  // or is it strange in some way (e.g. relative or patched into a series of
   // instructions).
   bool IsCodedSpecially();
 
@@ -271,14 +272,17 @@ class RelocInfo BASE_EMBEDDED {
   // this relocation applies to;
   // can only be called if IsCodeTarget(rmode_) || rmode_ == RUNTIME_ENTRY
   INLINE(Address target_address());
-  INLINE(void set_target_address(Address target));
+  INLINE(void set_target_address(Address target,
+                                 WriteBarrierMode mode = UPDATE_WRITE_BARRIER));
   INLINE(Object* target_object());
   INLINE(Handle<Object> target_object_handle(Assembler* origin));
   INLINE(Object** target_object_address());
-  INLINE(void set_target_object(Object* target));
+  INLINE(void set_target_object(Object* target,
+                                WriteBarrierMode mode = UPDATE_WRITE_BARRIER));
   INLINE(JSGlobalPropertyCell* target_cell());
   INLINE(Handle<JSGlobalPropertyCell> target_cell_handle());
-  INLINE(void set_target_cell(JSGlobalPropertyCell* cell));
+  INLINE(void set_target_cell(JSGlobalPropertyCell* cell,
+                              WriteBarrierMode mode = UPDATE_WRITE_BARRIER));
 
 
   // Read the address of the word containing the target_address in an
@@ -353,13 +357,14 @@ class RelocInfo BASE_EMBEDDED {
   byte* pc_;
   Mode rmode_;
   intptr_t data_;
+  Code* host_;
 #ifdef V8_TARGET_ARCH_MIPS
   // Code and Embedded Object pointers in mips are stored split
   // across two consecutive 32-bit instructions. Heap management
   // routines expect to access these pointers indirectly. The following
   // location provides a place for these pointers to exist natually
   // when accessed via the Iterator.
-  Object *reconstructed_obj_ptr_;
+  Object* reconstructed_obj_ptr_;
   // External-reference pointers are also split across instruction-pairs
   // in mips, but are accessed via indirect pointers. This location
   // provides a place for that pointer to exist naturally. Its address
@@ -561,6 +566,13 @@ class ExternalReference BASE_EMBEDDED {
   // pattern. This means that they have to be added to the
   // ExternalReferenceTable in serialize.cc manually.
 
+  static ExternalReference incremental_marking_record_write_function(
+      Isolate* isolate);
+  static ExternalReference incremental_evacuation_record_write_function(
+      Isolate* isolate);
+  static ExternalReference store_buffer_overflow_function(
+      Isolate* isolate);
+  static ExternalReference flush_icache_function(Isolate* isolate);
   static ExternalReference perform_gc_function(Isolate* isolate);
   static ExternalReference fill_heap_number_with_random_function(
       Isolate* isolate);
@@ -568,23 +580,19 @@ class ExternalReference BASE_EMBEDDED {
   static ExternalReference transcendental_cache_array_address(Isolate* isolate);
   static ExternalReference delete_handle_scope_extensions(Isolate* isolate);
 
+  static ExternalReference get_date_field_function(Isolate* isolate);
+  static ExternalReference date_cache_stamp(Isolate* isolate);
+
   // Deoptimization support.
   static ExternalReference new_deoptimizer_function(Isolate* isolate);
   static ExternalReference compute_output_frames_function(Isolate* isolate);
-  static ExternalReference global_contexts_list(Isolate* isolate);
 
   // Static data in the keyed lookup cache.
   static ExternalReference keyed_lookup_cache_keys(Isolate* isolate);
   static ExternalReference keyed_lookup_cache_field_offsets(Isolate* isolate);
 
-  // Static variable Factory::the_hole_value.location()
-  static ExternalReference the_hole_value_location(Isolate* isolate);
-
-  // Static variable Factory::arguments_marker.location()
-  static ExternalReference arguments_marker_location(Isolate* isolate);
-
-  // Static variable Heap::roots_address()
-  static ExternalReference roots_address(Isolate* isolate);
+  // Static variable Heap::roots_array_start()
+  static ExternalReference roots_array_start(Isolate* isolate);
 
   // Static variable StackGuard::address_of_jslimit()
   static ExternalReference address_of_stack_limit(Isolate* isolate);
@@ -606,6 +614,10 @@ class ExternalReference BASE_EMBEDDED {
   static ExternalReference new_space_start(Isolate* isolate);
   static ExternalReference new_space_mask(Isolate* isolate);
   static ExternalReference heap_always_allocate_scope_depth(Isolate* isolate);
+  static ExternalReference new_space_mark_bits(Isolate* isolate);
+
+  // Write barrier.
+  static ExternalReference store_buffer_top(Isolate* isolate);
 
   // Used for fast allocation in generated code.
   static ExternalReference new_space_allocation_top_address(Isolate* isolate);
@@ -635,6 +647,7 @@ class ExternalReference BASE_EMBEDDED {
 
   static ExternalReference math_sin_double_function(Isolate* isolate);
   static ExternalReference math_cos_double_function(Isolate* isolate);
+  static ExternalReference math_tan_double_function(Isolate* isolate);
   static ExternalReference math_log_double_function(Isolate* isolate);
 
   Address address() const {return reinterpret_cast<Address>(address_);}
@@ -799,33 +812,33 @@ class PreservePositionScope BASE_EMBEDDED {
 // -----------------------------------------------------------------------------
 // Utility functions
 
-static inline bool is_intn(int x, int n)  {
+inline bool is_intn(int x, int n)  {
   return -(1 << (n-1)) <= x && x < (1 << (n-1));
 }
 
-static inline bool is_int8(int x)  { return is_intn(x, 8); }
-static inline bool is_int16(int x)  { return is_intn(x, 16); }
-static inline bool is_int18(int x)  { return is_intn(x, 18); }
-static inline bool is_int24(int x)  { return is_intn(x, 24); }
+inline bool is_int8(int x)  { return is_intn(x, 8); }
+inline bool is_int16(int x)  { return is_intn(x, 16); }
+inline bool is_int18(int x)  { return is_intn(x, 18); }
+inline bool is_int24(int x)  { return is_intn(x, 24); }
 
-static inline bool is_uintn(int x, int n) {
+inline bool is_uintn(int x, int n) {
   return (x & -(1 << n)) == 0;
 }
 
-static inline bool is_uint2(int x)  { return is_uintn(x, 2); }
-static inline bool is_uint3(int x)  { return is_uintn(x, 3); }
-static inline bool is_uint4(int x)  { return is_uintn(x, 4); }
-static inline bool is_uint5(int x)  { return is_uintn(x, 5); }
-static inline bool is_uint6(int x)  { return is_uintn(x, 6); }
-static inline bool is_uint8(int x)  { return is_uintn(x, 8); }
-static inline bool is_uint10(int x)  { return is_uintn(x, 10); }
-static inline bool is_uint12(int x)  { return is_uintn(x, 12); }
-static inline bool is_uint16(int x)  { return is_uintn(x, 16); }
-static inline bool is_uint24(int x)  { return is_uintn(x, 24); }
-static inline bool is_uint26(int x)  { return is_uintn(x, 26); }
-static inline bool is_uint28(int x)  { return is_uintn(x, 28); }
-
-static inline int NumberOfBitsSet(uint32_t x) {
+inline bool is_uint2(int x)  { return is_uintn(x, 2); }
+inline bool is_uint3(int x)  { return is_uintn(x, 3); }
+inline bool is_uint4(int x)  { return is_uintn(x, 4); }
+inline bool is_uint5(int x)  { return is_uintn(x, 5); }
+inline bool is_uint6(int x)  { return is_uintn(x, 6); }
+inline bool is_uint8(int x)  { return is_uintn(x, 8); }
+inline bool is_uint10(int x)  { return is_uintn(x, 10); }
+inline bool is_uint12(int x)  { return is_uintn(x, 12); }
+inline bool is_uint16(int x)  { return is_uintn(x, 16); }
+inline bool is_uint24(int x)  { return is_uintn(x, 24); }
+inline bool is_uint26(int x)  { return is_uintn(x, 26); }
+inline bool is_uint28(int x)  { return is_uintn(x, 28); }
+
+inline int NumberOfBitsSet(uint32_t x) {
   unsigned int num_bits_set;
   for (num_bits_set = 0; x; x >>= 1) {
     num_bits_set += x & 1;
@@ -833,6 +846,8 @@ static inline int NumberOfBitsSet(uint32_t x) {
   return num_bits_set;
 }
 
+bool EvalComparison(Token::Value op, double op1, double op2);
+
 // Computes pow(x, y) with the special cases in the spec for Math.pow.
 double power_double_int(double x, int y);
 double power_double_double(double x, double y);