YourWishes/jerryscript
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Remove CBC_EXT_CONTINUE_EXEC opcode. (#3378)

Browse Source 
There is no need for a specific opcode after yield because
the return and throw commands can be redirected to fake byte code sequences.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2019-12-02 12:37:13 +01:00
committed by GitHub
parent 51efba40b4
commit 132de45c0b
13 changed files with 69 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files
jerry-core/parser/js/byte-code.h
+7 -7
View File
@@ -321,11 +321,11 @@
CBC_OPCODE (CBC_SET_BYTECODE_PTR, CBC_NO_FLAG, 0, \
VM_OC_NONE) \
CBC_OPCODE (CBC_RETURN, CBC_NO_FLAG, -1, \
VM_OC_RET | VM_OC_GET_STACK) \
VM_OC_RETURN | VM_OC_GET_STACK) \
CBC_OPCODE (CBC_RETURN_WITH_BLOCK, CBC_NO_FLAG, 0, \
VM_OC_RET) \
VM_OC_RETURN) \
CBC_OPCODE (CBC_RETURN_WITH_LITERAL, CBC_HAS_LITERAL_ARG, 0, \
VM_OC_RET | VM_OC_GET_LITERAL) \
VM_OC_RETURN | VM_OC_GET_LITERAL) \
CBC_OPCODE (CBC_SET_LITERAL_PROPERTY, CBC_HAS_LITERAL_ARG | CBC_HAS_LITERAL_ARG2, 0, \
VM_OC_SET_PROPERTY | VM_OC_NON_STATIC_FLAG | VM_OC_GET_LITERAL_LITERAL) \
CBC_OPCODE (CBC_BREAKPOINT_ENABLED, CBC_NO_FLAG, 0, \
@@ -654,12 +654,12 @@
VM_OC_INITIALIZER_PUSH_PROP | VM_OC_GET_LITERAL) \
CBC_OPCODE (CBC_EXT_SPREAD_NEW, CBC_HAS_POP_STACK_BYTE_ARG, 0, \
VM_OC_SPREAD_ARGUMENTS | VM_OC_PUT_STACK) \
CBC_OPCODE (CBC_EXT_CREATE_GENERATOR, CBC_NO_FLAG, 0, \
CBC_OPCODE (CBC_EXT_CREATE_GENERATOR, CBC_NO_FLAG, 1, \
VM_OC_CREATE_GENERATOR) \
CBC_OPCODE (CBC_EXT_YIELD, CBC_NO_FLAG, -1, \
CBC_OPCODE (CBC_EXT_YIELD, CBC_NO_FLAG, 0, \
VM_OC_YIELD | VM_OC_GET_STACK) \
CBC_OPCODE (CBC_EXT_CONTINUE_EXEC, CBC_NO_FLAG, 1, \
VM_OC_CONTINUE_EXEC) \
CBC_OPCODE (CBC_EXT_RETURN, CBC_NO_FLAG, -1, \
VM_OC_EXT_RETURN | VM_OC_GET_STACK) \
\
/* Last opcode (not a real opcode). */ \
CBC_OPCODE (CBC_EXT_END, CBC_NO_FLAG, 0, \
jerry-core/parser/js/js-parser-expr.c
-1
View File
@@ -1573,7 +1573,6 @@ parser_parse_unary_expression (parser_context_t *context_p, /**< context */
}
parser_emit_cbc_ext (context_p, CBC_EXT_YIELD);
parser_emit_cbc_ext (context_p, CBC_EXT_CONTINUE_EXEC);
return (context_p->token.type != LEXER_RIGHT_PAREN
&& context_p->token.type != LEXER_COMMA);
jerry-core/parser/js/js-parser.c
-2
View File
@@ -1636,7 +1636,6 @@ parser_parse_function_arguments (parser_context_t *context_p, /**< context */
if (context_p->status_flags & PARSER_IS_GENERATOR_FUNCTION)
{
parser_emit_cbc_ext (context_p, CBC_EXT_CREATE_GENERATOR);
parser_emit_cbc_ext (context_p, CBC_EXT_CONTINUE_EXEC);
parser_emit_cbc (context_p, CBC_POP);
}
@@ -1810,7 +1809,6 @@ parser_parse_function_arguments (parser_context_t *context_p, /**< context */
if (context_p->status_flags & PARSER_IS_GENERATOR_FUNCTION)
{
parser_emit_cbc_ext (context_p, CBC_EXT_CREATE_GENERATOR);
parser_emit_cbc_ext (context_p, CBC_EXT_CONTINUE_EXEC);
parser_emit_cbc (context_p, CBC_POP);
}