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Remove deprecated verification for context separation.

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R=hpayer@chromium.org

Review URL: https://codereview.chromium.org/636173002

git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@24497 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
mstarzinger@chromium.org 2014-10-09 14:01:59 +00:00
parent 8e54052b10
commit 2514113887
2 changed files with 0 additions and 105 deletions
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2
src/flag-definitions.h
View File

@ -731,8 +731,6 @@ DEFINE_BOOL(trace_contexts, false, "trace contexts operations")
DEFINE_BOOL(gc_verbose, false, "print stuff during garbage collection")
DEFINE_BOOL(heap_stats, false, "report heap statistics before and after GC")
DEFINE_BOOL(code_stats, false, "report code statistics after GC")
DEFINE_BOOL(verify_native_context_separation, false,
"verify that code holds on to at most one native context after GC")
DEFINE_BOOL(print_handles, false, "report handles after GC")
DEFINE_BOOL(print_global_handles, false, "report global handles after GC")

103
src/heap/mark-compact.cc
View File

@ -227,103 +227,6 @@ static void VerifyEvacuation(Heap* heap) {
#endif // VERIFY_HEAP
#ifdef DEBUG
class VerifyNativeContextSeparationVisitor : public ObjectVisitor {
public:
VerifyNativeContextSeparationVisitor() : current_native_context_(NULL) {}
void VisitPointers(Object** start, Object** end) {
for (Object** current = start; current < end; current++) {
if ((*current)->IsHeapObject()) {
HeapObject* object = HeapObject::cast(*current);
if (object->IsString()) continue;
switch (object->map()->instance_type()) {
case JS_FUNCTION_TYPE:
CheckContext(JSFunction::cast(object)->context());
break;
case JS_GLOBAL_PROXY_TYPE:
CheckContext(JSGlobalProxy::cast(object)->native_context());
break;
case JS_GLOBAL_OBJECT_TYPE:
case JS_BUILTINS_OBJECT_TYPE:
CheckContext(GlobalObject::cast(object)->native_context());
break;
case JS_ARRAY_TYPE:
case JS_DATE_TYPE:
case JS_OBJECT_TYPE:
case JS_REGEXP_TYPE:
VisitPointer(HeapObject::RawField(object, JSObject::kMapOffset));
break;
case MAP_TYPE:
VisitPointer(HeapObject::RawField(object, Map::kPrototypeOffset));
VisitPointer(HeapObject::RawField(object, Map::kConstructorOffset));
break;
case FIXED_ARRAY_TYPE:
if (object->IsContext()) {
CheckContext(object);
} else {
FixedArray* array = FixedArray::cast(object);
int length = array->length();
// Set array length to zero to prevent cycles while iterating
// over array bodies, this is easier than intrusive marking.
array->set_length(0);
array->IterateBody(FIXED_ARRAY_TYPE, FixedArray::SizeFor(length),
this);
array->set_length(length);
}
break;
case CELL_TYPE:
case JS_PROXY_TYPE:
case JS_VALUE_TYPE:
case TYPE_FEEDBACK_INFO_TYPE:
object->Iterate(this);
break;
case DECLARED_ACCESSOR_INFO_TYPE:
case EXECUTABLE_ACCESSOR_INFO_TYPE:
case BYTE_ARRAY_TYPE:
case CALL_HANDLER_INFO_TYPE:
case CODE_TYPE:
case FIXED_DOUBLE_ARRAY_TYPE:
case HEAP_NUMBER_TYPE:
case MUTABLE_HEAP_NUMBER_TYPE:
case INTERCEPTOR_INFO_TYPE:
case ODDBALL_TYPE:
case SCRIPT_TYPE:
case SHARED_FUNCTION_INFO_TYPE:
break;
default:
UNREACHABLE();
}
}
}
}
private:
void CheckContext(Object* context) {
if (!context->IsContext()) return;
Context* native_context = Context::cast(context)->native_context();
if (current_native_context_ == NULL) {
current_native_context_ = native_context;
} else {
CHECK_EQ(current_native_context_, native_context);
}
}
Context* current_native_context_;
};
static void VerifyNativeContextSeparation(Heap* heap) {
HeapObjectIterator it(heap->code_space());
for (Object* object = it.Next(); object != NULL; object = it.Next()) {
VerifyNativeContextSeparationVisitor visitor;
Code::cast(object)->CodeIterateBody(&visitor);
}
}
#endif
void MarkCompactCollector::SetUp() {
free_list_old_data_space_.Reset(new FreeList(heap_->old_data_space()));
free_list_old_pointer_space_.Reset(new FreeList(heap_->old_pointer_space()));
@ -405,12 +308,6 @@ void MarkCompactCollector::CollectGarbage() {
SweepSpaces();
#ifdef DEBUG
if (FLAG_verify_native_context_separation) {
VerifyNativeContextSeparation(heap_);
}
#endif
#ifdef VERIFY_HEAP
if (heap()->weak_embedded_objects_verification_enabled()) {
VerifyWeakEmbeddedObjectsInCode();