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Registering temporary variables arrays in ecma-stack frames, starting mark traverse from them during GC.

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This commit is contained in:
Ruben Ayrapetyan
2015-01-15 18:45:37 +03:00
parent eef966869a
commit 557df54f9d
7 changed files with 125 additions and 27 deletions
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src/libecmaobjects/ecma-stack.c
+55 -1
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@@ -58,11 +58,24 @@ ecma_stack_finalize ()
JERRY_ASSERT (ecma_stack_top_frame_p == NULL);
} /* ecma_stack_finalize */
/**
* Get ecma-stack's top frame
*
* @return pointer to the top frame descriptor
*/
ecma_stack_frame_t*
ecma_stack_get_top_frame (void)
{
return ecma_stack_top_frame_p;
} /* ecma_stack_get_top_frame */
/**
* Add the frame to ecma-stack
*/
void
ecma_stack_add_frame (ecma_stack_frame_t *frame_p) /**< frame to initialize */
ecma_stack_add_frame (ecma_stack_frame_t *frame_p, /**< frame to initialize */
ecma_value_t *regs_p, /**< array of register variables' values */
int32_t regs_num) /**< number of register variables */
{
frame_p->prev_frame_p = ecma_stack_top_frame_p;
ecma_stack_top_frame_p = frame_p;
@@ -70,6 +83,13 @@ ecma_stack_add_frame (ecma_stack_frame_t *frame_p) /**< frame to initialize */
frame_p->top_chunk_p = NULL;
frame_p->dynamically_allocated_value_slots_p = frame_p->inlined_values;
frame_p->current_slot_index = 0;
frame_p->regs_p = regs_p;
frame_p->regs_number = regs_num;
for (int32_t i = 0; i < regs_num; i++)
{
regs_p [i] = ecma_make_simple_value (ECMA_SIMPLE_VALUE_EMPTY);
}
} /* ecma_stack_add_frame */
/**
@@ -90,8 +110,42 @@ ecma_stack_free_frame (ecma_stack_frame_t *frame_p) /**< frame to initialize */
{
ecma_stack_pop (frame_p);
}
for (int32_t reg_index = 0;
reg_index < frame_p->regs_number;
reg_index++)
{
ecma_free_value (frame_p->regs_p [reg_index], false);
}
} /* ecma_stack_free_frame */
/**
* Get value of specified register variable
*
* @return ecma-value
*/
ecma_value_t
ecma_stack_frame_get_reg_value (ecma_stack_frame_t *frame_p, /**< frame */
int32_t reg_index) /**< index of register variable */
{
JERRY_ASSERT (reg_index >= 0 && reg_index < frame_p->regs_number);
return frame_p->regs_p [reg_index];
} /* ecma_stack_frame_get_reg_value */
/**
* Set value of specified register variable
*/
void
ecma_stack_frame_set_reg_value (ecma_stack_frame_t *frame_p, /**< frame */
int32_t reg_index, /**< index of register variable */
ecma_value_t value) /**< ecma-value */
{
JERRY_ASSERT (reg_index >= 0 && reg_index < frame_p->regs_number);
frame_p->regs_p [reg_index] = value;
} /* ecma_stack_frame_set_reg_value */
/**
* Calculate number of value slots in the top-most chunk of the frame
*