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Rework ecma collection (#3086)

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After this patch the ecma value collection is a resizable buffer of ecma-values where the adjacent elements are allocated next to each other.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2019-09-12 13:05:24 +02:00
committed by Zoltan Herczeg
parent f3d3c34c30
commit fc30f003ba
35 changed files with 511 additions and 776 deletions
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jerry-core/vm/vm.c
+28 -56
View File
@@ -2872,11 +2872,12 @@ vm_loop (vm_frame_ctx_t *frame_ctx_p) /**< frame context */
JERRY_ASSERT (frame_ctx_p->registers_p + register_end + frame_ctx_p->context_depth == stack_top_p);
ecma_value_t expr_obj_value = ECMA_VALUE_UNDEFINED;
ecma_collection_chunk_t *prop_names_p = opfunc_for_in (value, &expr_obj_value);
ecma_collection_t *prop_names_p = opfunc_for_in (value, &expr_obj_value);
ecma_free_value (value);
if (prop_names_p == NULL)
{
/* The collection is already released */
byte_code_p = byte_code_start_p + branch_offset;
continue;
}
@@ -2896,56 +2897,34 @@ vm_loop (vm_frame_ctx_t *frame_ctx_p) /**< frame context */
{
ecma_value_t *context_top_p = frame_ctx_p->registers_p + register_end + frame_ctx_p->context_depth;
ecma_collection_chunk_t *chunk_p;
chunk_p = ECMA_GET_INTERNAL_VALUE_ANY_POINTER (ecma_collection_chunk_t, context_top_p[-2]);
ecma_collection_t *collection_p;
collection_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_collection_t, context_top_p[-2]);
JERRY_ASSERT (VM_GET_CONTEXT_TYPE (context_top_p[-1]) == VM_CONTEXT_FOR_IN);
uint32_t index = context_top_p[-3];
ecma_value_t *buffer_p = collection_p->buffer_p;
JERRY_ASSERT (!ecma_is_value_pointer (chunk_p->items[index]));
/* TODO: use collection iterator instead of directly accessing the collection chunks. */
*stack_top_p++ = chunk_p->items[index];
index++;
if (JERRY_LIKELY (!ecma_is_value_pointer (chunk_p->items[index])))
{
context_top_p[-3] = index;
continue;
}
context_top_p[-3] = 0;
ecma_collection_chunk_t *next_chunk_p;
next_chunk_p = (ecma_collection_chunk_t *) ecma_get_pointer_from_value (chunk_p->items[index]);
ECMA_SET_INTERNAL_VALUE_ANY_POINTER (context_top_p[-2], next_chunk_p);
jmem_heap_free_block (chunk_p, sizeof (ecma_collection_chunk_t));
*stack_top_p++ = buffer_p[index];
context_top_p[-3]++;
continue;
}
case VM_OC_FOR_IN_HAS_NEXT:
{
JERRY_ASSERT (frame_ctx_p->registers_p + register_end + frame_ctx_p->context_depth == stack_top_p);
ecma_collection_chunk_t *chunk_p;
chunk_p = ECMA_GET_INTERNAL_VALUE_ANY_POINTER (ecma_collection_chunk_t, stack_top_p[-2]);
ecma_collection_t *collection_p;
collection_p = ECMA_GET_INTERNAL_VALUE_POINTER (ecma_collection_t, stack_top_p[-2]);
uint32_t index = stack_top_p[-3];
JERRY_ASSERT (VM_GET_CONTEXT_TYPE (stack_top_p[-1]) == VM_CONTEXT_FOR_IN);
ecma_value_t *buffer_p = collection_p->buffer_p;
ecma_object_t *object_p = ecma_get_object_from_value (stack_top_p[-4]);
uint32_t index = stack_top_p[-3];
while (true)
while (index < collection_p->item_count)
{
if (chunk_p == NULL)
{
ecma_deref_object (object_p);
VM_MINUS_EQUAL_U16 (frame_ctx_p->context_depth, PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION);
stack_top_p -= PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION;
break;
}
ecma_string_t *prop_name_p = ecma_get_string_from_value (chunk_p->items[index]);
ecma_string_t *prop_name_p = ecma_get_prop_name_from_value (buffer_p[index]);
if (JERRY_LIKELY (ecma_op_object_has_property (object_p, prop_name_p)))
{
@@ -2953,27 +2932,20 @@ vm_loop (vm_frame_ctx_t *frame_ctx_p) /**< frame context */
break;
}
index++;
ecma_value_t value = chunk_p->items[index];
if (JERRY_LIKELY (!ecma_is_value_pointer (value)))
{
stack_top_p[-3] = index;
}
else
{
index = 0;
stack_top_p[-3] = 0;
ecma_collection_chunk_t *next_chunk_p;
next_chunk_p = (ecma_collection_chunk_t *) ecma_get_pointer_from_value (value);
ECMA_SET_INTERNAL_VALUE_ANY_POINTER (stack_top_p[-2], next_chunk_p);
jmem_heap_free_block (chunk_p, sizeof (ecma_collection_chunk_t));
chunk_p = next_chunk_p;
}
ecma_deref_ecma_string (prop_name_p);
index++;
}
if (index == collection_p->item_count)
{
ecma_deref_object (object_p);
ecma_collection_destroy (collection_p);
VM_MINUS_EQUAL_U16 (frame_ctx_p->context_depth, PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION);
stack_top_p -= PARSER_FOR_IN_CONTEXT_STACK_ALLOCATION;
}
else
{
stack_top_p[-3] = index;
}
continue;
}