Remove some asserts to speed up debug mode.

Review URL: http://codereview.chromium.org/8256012

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9606 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/heap-inl.h

@@ -359,7 +359,6 @@ AllocationSpace Heap::TargetSpaceId(InstanceType type) {
 
 
 void Heap::CopyBlock(Address dst, Address src, int byte_size) {
-  ASSERT(IsAligned(byte_size, kPointerSize));
   CopyWords(reinterpret_cast<Object**>(dst),
             reinterpret_cast<Object**>(src),
             byte_size / kPointerSize);

src/heap.cc

@@ -1443,9 +1443,9 @@ class ScavengingVisitor : public StaticVisitorBase {
                                     HeapObject** slot,
                                     HeapObject* object,
                                     int object_size) {
-    ASSERT((size_restriction != SMALL) ||
-           (object_size <= Page::kMaxHeapObjectSize));
-    ASSERT(object->Size() == object_size);
+    SLOW_ASSERT((size_restriction != SMALL) ||
+                (object_size <= Page::kMaxHeapObjectSize));
+    SLOW_ASSERT(object->Size() == object_size);
 
     Heap* heap = map->GetHeap();
     if (heap->ShouldBePromoted(object->address(), object_size)) {
@@ -1678,9 +1678,9 @@ void Heap::SelectScavengingVisitorsTable() {
 
 
 void Heap::ScavengeObjectSlow(HeapObject** p, HeapObject* object) {
-  ASSERT(HEAP->InFromSpace(object));
+  SLOW_ASSERT(HEAP->InFromSpace(object));
   MapWord first_word = object->map_word();
-  ASSERT(!first_word.IsForwardingAddress());
+  SLOW_ASSERT(!first_word.IsForwardingAddress());
   Map* map = first_word.ToMap();
   map->GetHeap()->DoScavengeObject(map, p, object);
 }
@@ -3688,7 +3688,7 @@ MaybeObject* Heap::AllocateGlobalObject(JSFunction* constructor) {
 MaybeObject* Heap::CopyJSObject(JSObject* source) {
   // Never used to copy functions.  If functions need to be copied we
   // have to be careful to clear the literals array.
-  ASSERT(!source->IsJSFunction());
+  SLOW_ASSERT(!source->IsJSFunction());
 
   // Make the clone.
   Map* map = source->map();
@@ -3714,7 +3714,7 @@ MaybeObject* Heap::CopyJSObject(JSObject* source) {
     { MaybeObject* maybe_clone = new_space_.AllocateRaw(object_size);
       if (!maybe_clone->ToObject(&clone)) return maybe_clone;
     }
-    ASSERT(InNewSpace(clone));
+    SLOW_ASSERT(InNewSpace(clone));
     // Since we know the clone is allocated in new space, we can copy
     // the contents without worrying about updating the write barrier.
     CopyBlock(HeapObject::cast(clone)->address(),
@@ -3722,7 +3722,8 @@ MaybeObject* Heap::CopyJSObject(JSObject* source) {
               object_size);
   }
 
-  ASSERT(JSObject::cast(clone)->GetElementsKind() == source->GetElementsKind());
+  SLOW_ASSERT(
+      JSObject::cast(clone)->GetElementsKind() == source->GetElementsKind());
   FixedArrayBase* elements = FixedArrayBase::cast(source->elements());
   FixedArray* properties = FixedArray::cast(source->properties());
   // Update elements if necessary.
@@ -4802,12 +4803,12 @@ void Heap::IterateAndMarkPointersToFromSpace(Address start,
                  HeapObject::cast(object));
         Object* new_object = *slot;
         if (InNewSpace(new_object)) {
-          ASSERT(Heap::InToSpace(new_object));
-          ASSERT(new_object->IsHeapObject());
+          SLOW_ASSERT(Heap::InToSpace(new_object));
+          SLOW_ASSERT(new_object->IsHeapObject());
           store_buffer_.EnterDirectlyIntoStoreBuffer(
               reinterpret_cast<Address>(slot));
         }
-        ASSERT(!MarkCompactCollector::IsOnEvacuationCandidate(new_object));
+        SLOW_ASSERT(!MarkCompactCollector::IsOnEvacuationCandidate(new_object));
       } else if (record_slots &&
                  MarkCompactCollector::IsOnEvacuationCandidate(object)) {
         mark_compact_collector()->RecordSlot(slot, slot, object);

src/incremental-marking-inl.h

@@ -143,9 +143,6 @@ void IncrementalMarking::WhiteToGreyAndPush(HeapObject* obj, MarkBit mark_bit) {
 
 
 void IncrementalMarking::WhiteToGrey(HeapObject* obj, MarkBit mark_bit) {
-  ASSERT(Marking::MarkBitFrom(obj) == mark_bit);
-  ASSERT(obj->Size() >= 2*kPointerSize);
-  ASSERT(IsMarking());
   Marking::WhiteToGrey(mark_bit);
 }
 

src/incremental-marking.cc

@@ -739,8 +739,8 @@ void IncrementalMarking::Step(intptr_t allocated_bytes) {
       }
 
       MarkBit obj_mark_bit = Marking::MarkBitFrom(obj);
-      ASSERT(Marking::IsGrey(obj_mark_bit) ||
-             (obj->IsFiller() && Marking::IsWhite(obj_mark_bit)));
+      SLOW_ASSERT(Marking::IsGrey(obj_mark_bit) ||
+                  (obj->IsFiller() && Marking::IsWhite(obj_mark_bit)));
       Marking::MarkBlack(obj_mark_bit);
       MemoryChunk::IncrementLiveBytes(obj->address(), size);
     }

src/mark-compact-inl.h

@@ -38,7 +38,7 @@ namespace internal {
 
 
 MarkBit Marking::MarkBitFrom(Address addr) {
-  MemoryChunk *p = MemoryChunk::FromAddress(addr);
+  MemoryChunk* p = MemoryChunk::FromAddress(addr);
   return p->markbits()->MarkBitFromIndex(p->AddressToMarkbitIndex(addr),
                                          p->ContainsOnlyData());
 }

src/mark-compact.h

@@ -61,68 +61,52 @@ class Marking {
   // Impossible markbits: 01
   static const char* kImpossibleBitPattern;
   static inline bool IsImpossible(MarkBit mark_bit) {
-    ASSERT(strcmp(kImpossibleBitPattern, "01") == 0);
     return !mark_bit.Get() && mark_bit.Next().Get();
   }
 
   // Black markbits: 10 - this is required by the sweeper.
   static const char* kBlackBitPattern;
   static inline bool IsBlack(MarkBit mark_bit) {
-    ASSERT(strcmp(kBlackBitPattern, "10") == 0);
-    ASSERT(!IsImpossible(mark_bit));
     return mark_bit.Get() && !mark_bit.Next().Get();
   }
 
   // White markbits: 00 - this is required by the mark bit clearer.
   static const char* kWhiteBitPattern;
   static inline bool IsWhite(MarkBit mark_bit) {
-    ASSERT(strcmp(kWhiteBitPattern, "00") == 0);
-    ASSERT(!IsImpossible(mark_bit));
     return !mark_bit.Get();
   }
 
   // Grey markbits: 11
   static const char* kGreyBitPattern;
   static inline bool IsGrey(MarkBit mark_bit) {
-    ASSERT(strcmp(kGreyBitPattern, "11") == 0);
-    ASSERT(!IsImpossible(mark_bit));
     return mark_bit.Get() && mark_bit.Next().Get();
   }
 
   static inline void MarkBlack(MarkBit mark_bit) {
     mark_bit.Set();
     mark_bit.Next().Clear();
-    ASSERT(Marking::IsBlack(mark_bit));
   }
 
   static inline void BlackToGrey(MarkBit markbit) {
-    ASSERT(IsBlack(markbit));
     markbit.Next().Set();
-    ASSERT(IsGrey(markbit));
   }
 
   static inline void WhiteToGrey(MarkBit markbit) {
-    ASSERT(IsWhite(markbit));
     markbit.Set();
     markbit.Next().Set();
-    ASSERT(IsGrey(markbit));
   }
 
   static inline void GreyToBlack(MarkBit markbit) {
-    ASSERT(IsGrey(markbit));
     markbit.Next().Clear();
-    ASSERT(IsBlack(markbit));
   }
 
   static inline void BlackToGrey(HeapObject* obj) {
-    ASSERT(obj->Size() >= 2 * kPointerSize);
     BlackToGrey(MarkBitFrom(obj));
   }
 
   static inline void AnyToGrey(MarkBit markbit) {
     markbit.Set();
     markbit.Next().Set();
-    ASSERT(IsGrey(markbit));
   }
 
   // Returns true if the the object whose mark is transferred is marked black.
@@ -173,8 +157,6 @@ class Marking {
       to_mark_bit.Next().Set();
       is_black = false;  // Was actually gray.
     }
-    ASSERT(Color(from) == Color(to));
-    ASSERT(is_black == (Color(to) == BLACK_OBJECT));
     return is_black;
   }
 
@@ -227,7 +209,6 @@ class MarkingDeque {
   inline void PushGrey(HeapObject* object) {
     ASSERT(object->IsHeapObject());
     if (IsFull()) {
-      ASSERT(Marking::IsGrey(Marking::MarkBitFrom(object)));
       SetOverflowed();
     } else {
       array_[top_] = object;
@@ -246,7 +227,6 @@ class MarkingDeque {
   inline void UnshiftGrey(HeapObject* object) {
     ASSERT(object->IsHeapObject());
     if (IsFull()) {
-      ASSERT(Marking::IsGrey(Marking::MarkBitFrom(object)));
       SetOverflowed();
     } else {
       bottom_ = ((bottom_ - 1) & mask_);

src/objects-inl.h

@@ -1300,7 +1300,6 @@ ACCESSORS(JSObject, properties, FixedArray, kPropertiesOffset)
 
 FixedArrayBase* JSObject::elements() {
   Object* array = READ_FIELD(this, kElementsOffset);
-  ASSERT(array->HasValidElements());
   return static_cast<FixedArrayBase*>(array);
 }
 

src/spaces-inl.h

@@ -257,16 +257,12 @@ HeapObject* PagedSpace::AllocateLinearly(int size_in_bytes) {
   if (new_top > allocation_info_.limit) return NULL;
 
   allocation_info_.top = new_top;
-  ASSERT(allocation_info_.VerifyPagedAllocation());
-  ASSERT(current_top != NULL);
   return HeapObject::FromAddress(current_top);
 }
 
 
 // Raw allocation.
 MaybeObject* PagedSpace::AllocateRaw(int size_in_bytes) {
-  ASSERT(HasBeenSetup());
-  ASSERT_OBJECT_SIZE(size_in_bytes);
   HeapObject* object = AllocateLinearly(size_in_bytes);
   if (object != NULL) {
     if (identity() == CODE_SPACE) {

src/spaces.h

@@ -642,7 +642,6 @@ class Page : public MemoryChunk {
   // [page_addr + kObjectStartOffset .. page_addr + kPageSize].
   INLINE(static Page* FromAllocationTop(Address top)) {
     Page* p = FromAddress(top - kPointerSize);
-    ASSERT_PAGE_OFFSET(p->Offset(top));
     return p;
   }
 
@@ -666,7 +665,6 @@ class Page : public MemoryChunk {
   // Returns the offset of a given address to this page.
   INLINE(int Offset(Address a)) {
     int offset = static_cast<int>(a - address());
-    ASSERT_PAGE_OFFSET(offset);
     return offset;
   }
 
@@ -1741,7 +1739,6 @@ class NewSpacePage : public MemoryChunk {
         reinterpret_cast<Address>(reinterpret_cast<uintptr_t>(address_in_page) &
                                   ~Page::kPageAlignmentMask);
     NewSpacePage* page = reinterpret_cast<NewSpacePage*>(page_start);
-    ASSERT(page->InNewSpace());
     return page;
   }
 
@@ -1818,7 +1815,6 @@ class SemiSpace : public Space {
 
   // Returns the start address of the current page of the space.
   Address page_low() {
-    ASSERT(anchor_.next_page() != &anchor_);
     return current_page_->body();
   }
 
@@ -2084,7 +2080,7 @@ class NewSpace : public Space {
 
   // Return the current capacity of a semispace.
   intptr_t EffectiveCapacity() {
-    ASSERT(to_space_.Capacity() == from_space_.Capacity());
+    SLOW_ASSERT(to_space_.Capacity() == from_space_.Capacity());
     return (to_space_.Capacity() / Page::kPageSize) * Page::kObjectAreaSize;
   }
 
@@ -2317,9 +2313,9 @@ class OldSpace : public PagedSpace {
 // For contiguous spaces, top should be in the space (or at the end) and limit
 // should be the end of the space.
 #define ASSERT_SEMISPACE_ALLOCATION_INFO(info, space) \
-  ASSERT((space).page_low() <= (info).top             \
-         && (info).top <= (space).page_high()         \
-         && (info).limit <= (space).page_high())
+  SLOW_ASSERT((space).page_low() <= (info).top             \
+              && (info).top <= (space).page_high()         \
+              && (info).limit <= (space).page_high())
 
 
 // -----------------------------------------------------------------------------

src/store-buffer-inl.h

@@ -55,10 +55,10 @@ void StoreBuffer::Mark(Address addr) {
 
 void StoreBuffer::EnterDirectlyIntoStoreBuffer(Address addr) {
   if (store_buffer_rebuilding_enabled_) {
-    ASSERT(!heap_->cell_space()->Contains(addr));
-    ASSERT(!heap_->code_space()->Contains(addr));
-    ASSERT(!heap_->old_data_space()->Contains(addr));
-    ASSERT(!heap_->new_space()->Contains(addr));
+    SLOW_ASSERT(!heap_->cell_space()->Contains(addr) &&
+                !heap_->code_space()->Contains(addr) &&
+                !heap_->old_data_space()->Contains(addr) &&
+                !heap_->new_space()->Contains(addr));
     Address* top = old_top_;
     *top++ = addr;
     old_top_ = top;

src/utils.h

@@ -168,7 +168,6 @@ static inline uint32_t RoundDownToPowerOf2(uint32_t x) {
 
 template <typename T, typename U>
 static inline bool IsAligned(T value, U alignment) {
-  ASSERT(IsPowerOf2(alignment));
   return (value & (alignment - 1)) == 0;
 }