Merge bleeding edge into the GC branch up to 7948. The asserts

src/assembler.cc

Index: src/assembler.cc
===================================================================
--- src/assembler.cc	(revision 7948)
+++ src/assembler.cc	(working copy)
@@ -71,11 +71,25 @@
 const double DoubleConstant::min_int = kMinInt;
 const double DoubleConstant::one_half = 0.5;
 const double DoubleConstant::minus_zero = -0.0;
+const double DoubleConstant::uint8_max_value = 255;
+const double DoubleConstant::zero = 0.0;
 const double DoubleConstant::nan = OS::nan_value();
 const double DoubleConstant::negative_infinity = -V8_INFINITY;
 const char* RelocInfo::kFillerCommentString = "DEOPTIMIZATION PADDING";
 
 // -----------------------------------------------------------------------------
+// Implementation of AssemblerBase
+
+AssemblerBase::AssemblerBase(Isolate* isolate)
+    : isolate_(isolate),
+      jit_cookie_(0) {
+  if (FLAG_mask_constants_with_cookie && isolate != NULL)  {
+    jit_cookie_ = V8::RandomPrivate(isolate);
+  }
+}
+
+
+// -----------------------------------------------------------------------------
 // Implementation of Label
 
 int Label::pos() const {
@@ -912,6 +926,18 @@
 }
 
 
+ExternalReference ExternalReference::address_of_zero() {
+  return ExternalReference(reinterpret_cast<void*>(
+      const_cast<double*>(&DoubleConstant::zero)));
+}
+
+
+ExternalReference ExternalReference::address_of_uint8_max_value() {
+  return ExternalReference(reinterpret_cast<void*>(
+      const_cast<double*>(&DoubleConstant::uint8_max_value)));
+}
+
+
 ExternalReference ExternalReference::address_of_negative_infinity() {
   return ExternalReference(reinterpret_cast<void*>(
       const_cast<double*>(&DoubleConstant::negative_infinity)));