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Parser optimizations.

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- parser is now non-recursive (i.e. parse function is not called recursively in any case);
 - byte-code is now more compact:
    - constants are now not immediately dumped upon occurence, but later - where necessary;
    - assignments are combined with unary / binary operations;
    - binary operations are encoded more compactly in many cases;
 - byte-code arrays are now allocated separately for each scope (so, GC of the scopes now becomes possible);
 - byte-code is dumped directly into corresponding byte-code arrays:
   - linked lists of op_meta are not now used for main code of a scope.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
JerryScript-DCO-1.0-Signed-off-by: Andrey Shitov a.shitov@samsung.com
This commit is contained in:
Andrey Shitov
2015-11-03 19:14:19 +03:00
committed by Ruben Ayrapetyan
parent b1de93abd6
commit 50d124bfc3
51 changed files with 9044 additions and 7401 deletions
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jerry-core/vm/opcodes-ecma-try-catch-finally.cpp
+10 -5
View File
@@ -13,6 +13,7 @@
* limitations under the License.
*/
#include "bytecode-data.h"
#include "jrt.h"
#include "vm.h"
#include "opcodes.h"
@@ -49,7 +50,9 @@ opfunc_try_block (vm_instr_t instr, /**< instruction */
if (next_instr.data.meta.type == OPCODE_META_TYPE_CATCH)
{
const vm_instr_counter_t catch_end_oc = (vm_instr_counter_t) (
vm_read_instr_counter_from_meta (OPCODE_META_TYPE_CATCH, frame_ctx_p) + frame_ctx_p->pos);
vm_read_instr_counter_from_meta (OPCODE_META_TYPE_CATCH,
frame_ctx_p->bytecode_header_p,
frame_ctx_p->pos) + frame_ctx_p->pos);
frame_ctx_p->pos++;
if (ecma_is_completion_value_throw (try_completion))
@@ -58,9 +61,9 @@ opfunc_try_block (vm_instr_t instr, /**< instruction */
JERRY_ASSERT (next_instr.op_idx == VM_OP_META);
JERRY_ASSERT (next_instr.data.meta.type == OPCODE_META_TYPE_CATCH_EXCEPTION_IDENTIFIER);
lit_cpointer_t catch_exc_val_var_name_lit_cp = serializer_get_literal_cp_by_uid (next_instr.data.meta.data_1,
frame_ctx_p->bytecode_header_p,
frame_ctx_p->pos);
lit_cpointer_t catch_exc_val_var_name_lit_cp = bc_get_literal_cp_by_uid (next_instr.data.meta.data_1,
frame_ctx_p->bytecode_header_p,
frame_ctx_p->pos);
frame_ctx_p->pos++;
ecma_string_t *catch_exc_var_name_str_p = ecma_new_ecma_string_from_lit_cp (catch_exc_val_var_name_lit_cp);
@@ -104,7 +107,9 @@ opfunc_try_block (vm_instr_t instr, /**< instruction */
if (next_instr.data.meta.type == OPCODE_META_TYPE_FINALLY)
{
const vm_instr_counter_t finally_end_oc = (vm_instr_counter_t) (
vm_read_instr_counter_from_meta (OPCODE_META_TYPE_FINALLY, frame_ctx_p) + frame_ctx_p->pos);
vm_read_instr_counter_from_meta (OPCODE_META_TYPE_FINALLY,
frame_ctx_p->bytecode_header_p,
frame_ctx_p->pos) + frame_ctx_p->pos);
frame_ctx_p->pos++;
vm_run_scope_t run_scope_finally = { frame_ctx_p->pos, finally_end_oc };