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Implement proper arguments support (#4289)

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- Store arguments in a register when possible
- Create separate arguments object for function argument initializer when necessary

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2020-10-16 11:02:36 +02:00
committed by GitHub
parent 650269feca
commit 841d536fce
16 changed files with 647 additions and 179 deletions
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jerry-core/ecma/operations/ecma-function-object.c
+1 -9
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@@ -25,7 +25,6 @@
#include "ecma-lex-env.h"
#include "ecma-objects.h"
#include "ecma-objects-general.h"
#include "ecma-arguments-object.h"
#include "ecma-proxy-object.h"
#include "ecma-symbol-object.h"
#include "jcontext.h"
@@ -879,11 +878,9 @@ ecma_op_function_call_simple (ecma_object_t *func_obj_p, /**< Function object */
vm_frame_ctx_shared_args_t shared_args;
shared_args.header.status_flags = VM_FRAME_CTX_SHARED_HAS_ARG_LIST;
shared_args.function_object_p = func_obj_p;
shared_args.arg_list_p = arguments_list_p;
shared_args.arg_list_len = arguments_list_len;
#if ENABLED (JERRY_ESNEXT)
shared_args.function_object_p = func_obj_p;
#endif /* ENABLED (JERRY_ESNEXT) */
/* Entering Function Code (ECMA-262 v5, 10.4.3) */
ecma_extended_object_t *ext_func_p = (ecma_extended_object_t *) func_obj_p;
@@ -946,11 +943,6 @@ ecma_op_function_call_simple (ecma_object_t *func_obj_p, /**< Function object */
{
shared_args.header.status_flags |= VM_FRAME_CTX_SHARED_FREE_LOCAL_ENV;
scope_p = ecma_create_decl_lex_env (scope_p);
if (JERRY_UNLIKELY (status_flags & CBC_CODE_FLAGS_IS_ARGUMENTS_NEEDED))
{
ecma_op_create_arguments_object (func_obj_p, scope_p, &shared_args);
}
}
ecma_value_t ret_value;