diff options
Diffstat (limited to 'deps/v8/src/compiler/allocation-builder-inl.h')
| -rw-r--r-- | deps/v8/src/compiler/allocation-builder-inl.h | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/deps/v8/src/compiler/allocation-builder-inl.h b/deps/v8/src/compiler/allocation-builder-inl.h index ff1404baa7..022d6aa4d4 100644 --- a/deps/v8/src/compiler/allocation-builder-inl.h +++ b/deps/v8/src/compiler/allocation-builder-inl.h @@ -27,11 +27,21 @@ void AllocationBuilder::AllocateContext(int variadic_part_length, MapRef map) { jsgraph()->Constant(variadic_part_length)); } +// static +bool AllocationBuilder::CanAllocateArray(int length, MapRef map, + AllocationType allocation) { + DCHECK(map.instance_type() == FIXED_ARRAY_TYPE || + map.instance_type() == FIXED_DOUBLE_ARRAY_TYPE); + int const size = (map.instance_type() == FIXED_ARRAY_TYPE) + ? FixedArray::SizeFor(length) + : FixedDoubleArray::SizeFor(length); + return size <= Heap::MaxRegularHeapObjectSize(allocation); +} + // Compound allocation of a FixedArray. void AllocationBuilder::AllocateArray(int length, MapRef map, AllocationType allocation) { - DCHECK(map.instance_type() == FIXED_ARRAY_TYPE || - map.instance_type() == FIXED_DOUBLE_ARRAY_TYPE); + DCHECK(CanAllocateArray(length, map, allocation)); int size = (map.instance_type() == FIXED_ARRAY_TYPE) ? FixedArray::SizeFor(length) : FixedDoubleArray::SizeFor(length); @@ -40,8 +50,16 @@ void AllocationBuilder::AllocateArray(int length, MapRef map, Store(AccessBuilder::ForFixedArrayLength(), jsgraph()->Constant(length)); } +// static +bool AllocationBuilder::CanAllocateSloppyArgumentElements( + int length, MapRef map, AllocationType allocation) { + int const size = SloppyArgumentsElements::SizeFor(length); + return size <= Heap::MaxRegularHeapObjectSize(allocation); +} + void AllocationBuilder::AllocateSloppyArgumentElements( int length, MapRef map, AllocationType allocation) { + DCHECK(CanAllocateSloppyArgumentElements(length, map, allocation)); int size = SloppyArgumentsElements::SizeFor(length); Allocate(size, allocation, Type::OtherInternal()); Store(AccessBuilder::ForMap(), map); |