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Reduce with stack consumption by 1. (#2430)

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JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2018-07-18 15:52:00 +02:00
committed by Robert Sipka
parent 5f4a220a65
commit 9513f3792d
3 changed files with 21 additions and 14 deletions
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jerry-core/vm/vm-stack.c
+17 -8
View File
@@ -54,15 +54,23 @@ vm_stack_context_abort (vm_frame_ctx_t *frame_ctx_p, /**< frame context */
break;
}
case VM_CONTEXT_CATCH:
{
JERRY_ASSERT (PARSER_TRY_CONTEXT_STACK_ALLOCATION > PARSER_WITH_CONTEXT_STACK_ALLOCATION);
const uint16_t size_diff = PARSER_TRY_CONTEXT_STACK_ALLOCATION - PARSER_WITH_CONTEXT_STACK_ALLOCATION;
VM_MINUS_EQUAL_U16 (frame_ctx_p->context_depth, size_diff);
vm_stack_top_p -= size_diff;
/* FALLTHRU */
}
case VM_CONTEXT_WITH:
{
ecma_deref_object (frame_ctx_p->lex_env_p);
frame_ctx_p->lex_env_p = ecma_get_object_from_value (vm_stack_top_p[-2]);
ecma_object_t *lex_env_p = frame_ctx_p->lex_env_p;
frame_ctx_p->lex_env_p = ecma_get_lex_env_outer_reference (lex_env_p);
ecma_deref_object (lex_env_p);
JERRY_ASSERT (PARSER_TRY_CONTEXT_STACK_ALLOCATION == PARSER_WITH_CONTEXT_STACK_ALLOCATION);
VM_MINUS_EQUAL_U16 (frame_ctx_p->context_depth, PARSER_TRY_CONTEXT_STACK_ALLOCATION);
vm_stack_top_p -= PARSER_TRY_CONTEXT_STACK_ALLOCATION;
VM_MINUS_EQUAL_U16 (frame_ctx_p->context_depth, PARSER_WITH_CONTEXT_STACK_ALLOCATION);
vm_stack_top_p -= PARSER_WITH_CONTEXT_STACK_ALLOCATION;
break;
}
default:
@@ -218,8 +226,9 @@ vm_stack_find_finally (vm_frame_ctx_t *frame_ctx_p, /**< frame context */
}
else
{
ecma_deref_object (frame_ctx_p->lex_env_p);
frame_ctx_p->lex_env_p = ecma_get_object_from_value (vm_stack_top_p[-2]);
ecma_object_t *lex_env_p = frame_ctx_p->lex_env_p;
frame_ctx_p->lex_env_p = ecma_get_lex_env_outer_reference (lex_env_p);
ecma_deref_object (lex_env_p);
if (byte_code_p[0] == CBC_CONTEXT_END)
{