Version 3.17.0
Enabled parallel sweeping.
Don't try to unlink instructions twice during GVN (Chromium issue 175141)
Fixed code flusher disabling while marking incrementally. (Chromium issue 173458, 168582)
Don't use TLS for space iterators. (issue 2531)
Added new GetHeapStatistics API entry and deprecated old one.
Fixed DoubleStackSlot-to-DoubleStackSlot moves on ia32. Unified platform-independent code. (Chromium issue 173907)
Added --trace-array-abuse to help find OOB accesses.
Performance and stability improvements on all platforms.
git-svn-id: http://v8.googlecode.com/svn/trunk@13663 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
diff --git a/src/debug.cc b/src/debug.cc
index 866839d..05050d1 100644
--- a/src/debug.cc
+++ b/src/debug.cc
@@ -2005,14 +2005,15 @@
{
// We are going to iterate heap to find all functions without
// debug break slots.
- isolate_->heap()->CollectAllGarbage(Heap::kMakeHeapIterableMask,
- "preparing for breakpoints");
+ Heap* heap = isolate_->heap();
+ heap->CollectAllGarbage(Heap::kMakeHeapIterableMask,
+ "preparing for breakpoints");
// Ensure no GC in this scope as we are going to use gc_metadata
// field in the Code object to mark active functions.
AssertNoAllocation no_allocation;
- Object* active_code_marker = isolate_->heap()->the_hole_value();
+ Object* active_code_marker = heap->the_hole_value();
CollectActiveFunctionsFromThread(isolate_,
isolate_->thread_local_top(),
@@ -2026,7 +2027,7 @@
// Scan the heap for all non-optimized functions which have no
// debug break slots and are not active or inlined into an active
// function and mark them for lazy compilation.
- HeapIterator iterator;
+ HeapIterator iterator(heap);
HeapObject* obj = NULL;
while (((obj = iterator.next()) != NULL)) {
if (obj->IsJSFunction()) {
@@ -2121,11 +2122,12 @@
int target_start_position = RelocInfo::kNoPosition;
Handle<JSFunction> target_function;
Handle<SharedFunctionInfo> target;
+ Heap* heap = isolate_->heap();
while (!done) {
{ // Extra scope for iterator and no-allocation.
- isolate_->heap()->EnsureHeapIsIterable();
+ heap->EnsureHeapIsIterable();
AssertNoAllocation no_alloc_during_heap_iteration;
- HeapIterator iterator;
+ HeapIterator iterator(heap);
for (HeapObject* obj = iterator.next();
obj != NULL; obj = iterator.next()) {
bool found_next_candidate = false;
@@ -2185,9 +2187,7 @@
} // End for loop.
} // End no-allocation scope.
- if (target.is_null()) {
- return isolate_->heap()->undefined_value();
- }
+ if (target.is_null()) return heap->undefined_value();
// There will be at least one break point when we are done.
has_break_points_ = true;
@@ -2461,7 +2461,7 @@
// Scan heap for Script objects.
int count = 0;
- HeapIterator iterator;
+ HeapIterator iterator(heap);
AssertNoAllocation no_allocation;
for (HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) {