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352 lines
9.8 KiB
Python
352 lines
9.8 KiB
Python
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"""
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opcode module - potentially shared between dis and other modules which
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operate on bytecodes (e.g. peephole optimizers).
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"""
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# Note that __all__ is further extended below
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__all__ = ["cmp_op", "opname", "opmap", "stack_effect", "hascompare",
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"HAVE_ARGUMENT", "EXTENDED_ARG"]
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import _opcode
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from _opcode import stack_effect
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import sys
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# The build uses older versions of Python which do not have _opcode_metadata
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if sys.version_info[:2] >= (3, 13):
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from _opcode_metadata import _specializations, _specialized_instructions
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cmp_op = ('<', '<=', '==', '!=', '>', '>=')
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ENABLE_SPECIALIZATION = True
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def is_pseudo(op):
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return op >= MIN_PSEUDO_OPCODE and op <= MAX_PSEUDO_OPCODE
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opmap = {}
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# pseudo opcodes (used in the compiler) mapped to the values
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# they can become in the actual code.
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_pseudo_ops = {}
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def def_op(name, op):
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opmap[name] = op
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def pseudo_op(name, op, real_ops):
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def_op(name, op)
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_pseudo_ops[name] = real_ops
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# Instruction opcodes for compiled code
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# Blank lines correspond to available opcodes
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def_op('CACHE', 0)
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def_op('POP_TOP', 1)
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def_op('PUSH_NULL', 2)
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def_op('INTERPRETER_EXIT', 3)
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def_op('END_FOR', 4)
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def_op('END_SEND', 5)
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def_op('TO_BOOL', 6)
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def_op('NOP', 9)
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def_op('UNARY_NEGATIVE', 11)
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def_op('UNARY_NOT', 12)
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def_op('UNARY_INVERT', 15)
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def_op('EXIT_INIT_CHECK', 16)
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# We reserve 17 as it is the initial value for the specializing counter
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# This helps us catch cases where we attempt to execute a cache.
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def_op('RESERVED', 17)
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def_op('MAKE_FUNCTION', 24)
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def_op('BINARY_SUBSCR', 25)
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def_op('BINARY_SLICE', 26)
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def_op('STORE_SLICE', 27)
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def_op('GET_LEN', 30)
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def_op('MATCH_MAPPING', 31)
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def_op('MATCH_SEQUENCE', 32)
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def_op('MATCH_KEYS', 33)
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def_op('PUSH_EXC_INFO', 35)
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def_op('CHECK_EXC_MATCH', 36)
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def_op('CHECK_EG_MATCH', 37)
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def_op('FORMAT_SIMPLE', 40)
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def_op('FORMAT_WITH_SPEC', 41)
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def_op('WITH_EXCEPT_START', 49)
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def_op('GET_AITER', 50)
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def_op('GET_ANEXT', 51)
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def_op('BEFORE_ASYNC_WITH', 52)
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def_op('BEFORE_WITH', 53)
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def_op('END_ASYNC_FOR', 54)
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def_op('CLEANUP_THROW', 55)
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def_op('STORE_SUBSCR', 60)
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def_op('DELETE_SUBSCR', 61)
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def_op('GET_ITER', 68)
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def_op('GET_YIELD_FROM_ITER', 69)
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def_op('LOAD_BUILD_CLASS', 71)
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def_op('LOAD_ASSERTION_ERROR', 74)
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def_op('RETURN_GENERATOR', 75)
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def_op('RETURN_VALUE', 83)
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def_op('SETUP_ANNOTATIONS', 85)
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def_op('LOAD_LOCALS', 87)
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def_op('POP_EXCEPT', 89)
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HAVE_ARGUMENT = 90 # real opcodes from here have an argument:
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def_op('STORE_NAME', 90) # Index in name list
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def_op('DELETE_NAME', 91) # ""
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def_op('UNPACK_SEQUENCE', 92) # Number of tuple items
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def_op('FOR_ITER', 93)
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def_op('UNPACK_EX', 94)
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def_op('STORE_ATTR', 95) # Index in name list
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def_op('DELETE_ATTR', 96) # ""
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def_op('STORE_GLOBAL', 97) # ""
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def_op('DELETE_GLOBAL', 98) # ""
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def_op('SWAP', 99)
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def_op('LOAD_CONST', 100) # Index in const list
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def_op('LOAD_NAME', 101) # Index in name list
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def_op('BUILD_TUPLE', 102) # Number of tuple items
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def_op('BUILD_LIST', 103) # Number of list items
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def_op('BUILD_SET', 104) # Number of set items
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def_op('BUILD_MAP', 105) # Number of dict entries
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def_op('LOAD_ATTR', 106) # Index in name list
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def_op('COMPARE_OP', 107) # Comparison operator
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def_op('IMPORT_NAME', 108) # Index in name list
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def_op('IMPORT_FROM', 109) # Index in name list
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def_op('JUMP_FORWARD', 110) # Number of words to skip
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def_op('POP_JUMP_IF_FALSE', 114)
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def_op('POP_JUMP_IF_TRUE', 115)
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def_op('LOAD_GLOBAL', 116) # Index in name list
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def_op('IS_OP', 117)
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def_op('CONTAINS_OP', 118)
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def_op('RERAISE', 119)
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def_op('COPY', 120)
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def_op('RETURN_CONST', 121)
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def_op('BINARY_OP', 122)
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def_op('SEND', 123) # Number of words to skip
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def_op('LOAD_FAST', 124) # Local variable number, no null check
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def_op('STORE_FAST', 125) # Local variable number
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def_op('DELETE_FAST', 126) # Local variable number
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def_op('LOAD_FAST_CHECK', 127) # Local variable number
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def_op('POP_JUMP_IF_NOT_NONE', 128)
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def_op('POP_JUMP_IF_NONE', 129)
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def_op('RAISE_VARARGS', 130) # Number of raise arguments (1, 2, or 3)
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def_op('GET_AWAITABLE', 131)
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def_op('BUILD_SLICE', 133) # Number of items
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def_op('JUMP_BACKWARD_NO_INTERRUPT', 134) # Number of words to skip (backwards)
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def_op('MAKE_CELL', 135)
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def_op('LOAD_DEREF', 137)
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def_op('STORE_DEREF', 138)
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def_op('DELETE_DEREF', 139)
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def_op('JUMP_BACKWARD', 140) # Number of words to skip (backwards)
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def_op('LOAD_SUPER_ATTR', 141)
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def_op('CALL_FUNCTION_EX', 142) # Flags
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def_op('LOAD_FAST_AND_CLEAR', 143) # Local variable number
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def_op('EXTENDED_ARG', 144)
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EXTENDED_ARG = opmap['EXTENDED_ARG']
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def_op('LIST_APPEND', 145)
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def_op('SET_ADD', 146)
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def_op('MAP_ADD', 147)
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def_op('COPY_FREE_VARS', 149)
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def_op('YIELD_VALUE', 150)
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def_op('RESUME', 151) # This must be kept in sync with deepfreeze.py
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def_op('MATCH_CLASS', 152)
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def_op('BUILD_CONST_KEY_MAP', 156)
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def_op('BUILD_STRING', 157)
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def_op('CONVERT_VALUE', 158)
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def_op('LIST_EXTEND', 162)
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def_op('SET_UPDATE', 163)
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def_op('DICT_MERGE', 164)
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def_op('DICT_UPDATE', 165)
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def_op('LOAD_FAST_LOAD_FAST', 168)
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def_op('STORE_FAST_LOAD_FAST', 169)
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def_op('STORE_FAST_STORE_FAST', 170)
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def_op('CALL', 171)
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def_op('KW_NAMES', 172)
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def_op('CALL_INTRINSIC_1', 173)
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def_op('CALL_INTRINSIC_2', 174)
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def_op('LOAD_FROM_DICT_OR_GLOBALS', 175)
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def_op('LOAD_FROM_DICT_OR_DEREF', 176)
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def_op('SET_FUNCTION_ATTRIBUTE', 177) # Attribute
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# Optimizer hook
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def_op('ENTER_EXECUTOR', 230)
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# Instrumented instructions
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MIN_INSTRUMENTED_OPCODE = 237
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def_op('INSTRUMENTED_LOAD_SUPER_ATTR', 237)
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def_op('INSTRUMENTED_POP_JUMP_IF_NONE', 238)
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def_op('INSTRUMENTED_POP_JUMP_IF_NOT_NONE', 239)
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def_op('INSTRUMENTED_RESUME', 240)
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def_op('INSTRUMENTED_CALL', 241)
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def_op('INSTRUMENTED_RETURN_VALUE', 242)
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def_op('INSTRUMENTED_YIELD_VALUE', 243)
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def_op('INSTRUMENTED_CALL_FUNCTION_EX', 244)
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def_op('INSTRUMENTED_JUMP_FORWARD', 245)
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def_op('INSTRUMENTED_JUMP_BACKWARD', 246)
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def_op('INSTRUMENTED_RETURN_CONST', 247)
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def_op('INSTRUMENTED_FOR_ITER', 248)
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def_op('INSTRUMENTED_POP_JUMP_IF_FALSE', 249)
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def_op('INSTRUMENTED_POP_JUMP_IF_TRUE', 250)
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def_op('INSTRUMENTED_END_FOR', 251)
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def_op('INSTRUMENTED_END_SEND', 252)
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def_op('INSTRUMENTED_INSTRUCTION', 253)
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def_op('INSTRUMENTED_LINE', 254)
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# 255 is reserved
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MIN_PSEUDO_OPCODE = 256
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pseudo_op('SETUP_FINALLY', 256, ['NOP'])
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pseudo_op('SETUP_CLEANUP', 257, ['NOP'])
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pseudo_op('SETUP_WITH', 258, ['NOP'])
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pseudo_op('POP_BLOCK', 259, ['NOP'])
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pseudo_op('JUMP', 260, ['JUMP_FORWARD', 'JUMP_BACKWARD'])
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pseudo_op('JUMP_NO_INTERRUPT', 261, ['JUMP_FORWARD', 'JUMP_BACKWARD_NO_INTERRUPT'])
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pseudo_op('LOAD_METHOD', 262, ['LOAD_ATTR'])
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pseudo_op('LOAD_SUPER_METHOD', 263, ['LOAD_SUPER_ATTR'])
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pseudo_op('LOAD_ZERO_SUPER_METHOD', 264, ['LOAD_SUPER_ATTR'])
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pseudo_op('LOAD_ZERO_SUPER_ATTR', 265, ['LOAD_SUPER_ATTR'])
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pseudo_op('STORE_FAST_MAYBE_NULL', 266, ['STORE_FAST'])
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pseudo_op('LOAD_CLOSURE', 267, ['LOAD_FAST'])
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MAX_PSEUDO_OPCODE = MIN_PSEUDO_OPCODE + len(_pseudo_ops) - 1
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del def_op, pseudo_op
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opname = ['<%r>' % (op,) for op in range(MAX_PSEUDO_OPCODE + 1)]
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for op, i in opmap.items():
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opname[i] = op
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# The build uses older versions of Python which do not have _opcode.has_* functions
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if sys.version_info[:2] >= (3, 13):
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# These lists are documented as part of the dis module's API
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hasarg = [op for op in opmap.values() if _opcode.has_arg(op)]
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hasconst = [op for op in opmap.values() if _opcode.has_const(op)]
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hasname = [op for op in opmap.values() if _opcode.has_name(op)]
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hasjump = [op for op in opmap.values() if _opcode.has_jump(op)]
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hasjrel = hasjump # for backward compatibility
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hasjabs = []
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hasfree = [op for op in opmap.values() if _opcode.has_free(op)]
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haslocal = [op for op in opmap.values() if _opcode.has_local(op)]
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hasexc = [op for op in opmap.values() if _opcode.has_exc(op)]
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__all__.extend(["hasarg", "hasconst", "hasname", "hasjump", "hasjrel",
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"hasjabs", "hasfree", "haslocal", "hasexc"])
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_intrinsic_1_descs = _opcode.get_intrinsic1_descs()
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_intrinsic_2_descs = _opcode.get_intrinsic2_descs()
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hascompare = [opmap["COMPARE_OP"]]
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_nb_ops = [
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("NB_ADD", "+"),
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("NB_AND", "&"),
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("NB_FLOOR_DIVIDE", "//"),
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("NB_LSHIFT", "<<"),
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("NB_MATRIX_MULTIPLY", "@"),
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("NB_MULTIPLY", "*"),
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("NB_REMAINDER", "%"),
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("NB_OR", "|"),
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("NB_POWER", "**"),
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("NB_RSHIFT", ">>"),
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("NB_SUBTRACT", "-"),
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("NB_TRUE_DIVIDE", "/"),
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("NB_XOR", "^"),
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("NB_INPLACE_ADD", "+="),
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("NB_INPLACE_AND", "&="),
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("NB_INPLACE_FLOOR_DIVIDE", "//="),
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("NB_INPLACE_LSHIFT", "<<="),
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("NB_INPLACE_MATRIX_MULTIPLY", "@="),
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("NB_INPLACE_MULTIPLY", "*="),
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("NB_INPLACE_REMAINDER", "%="),
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("NB_INPLACE_OR", "|="),
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("NB_INPLACE_POWER", "**="),
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("NB_INPLACE_RSHIFT", ">>="),
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("NB_INPLACE_SUBTRACT", "-="),
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("NB_INPLACE_TRUE_DIVIDE", "/="),
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("NB_INPLACE_XOR", "^="),
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]
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_cache_format = {
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"LOAD_GLOBAL": {
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"counter": 1,
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"index": 1,
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"module_keys_version": 1,
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"builtin_keys_version": 1,
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},
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"BINARY_OP": {
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"counter": 1,
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},
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"UNPACK_SEQUENCE": {
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"counter": 1,
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},
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"COMPARE_OP": {
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"counter": 1,
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},
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"BINARY_SUBSCR": {
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"counter": 1,
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},
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"FOR_ITER": {
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"counter": 1,
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},
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"LOAD_SUPER_ATTR": {
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"counter": 1,
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},
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"LOAD_ATTR": {
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"counter": 1,
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"version": 2,
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"keys_version": 2,
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"descr": 4,
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},
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"STORE_ATTR": {
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"counter": 1,
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"version": 2,
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"index": 1,
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},
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"CALL": {
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"counter": 1,
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"func_version": 2,
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},
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"STORE_SUBSCR": {
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"counter": 1,
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},
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"SEND": {
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"counter": 1,
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},
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"JUMP_BACKWARD": {
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"counter": 1,
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},
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"TO_BOOL": {
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"counter": 1,
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"version": 2,
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},
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}
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_inline_cache_entries = [
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sum(_cache_format.get(opname[opcode], {}).values()) for opcode in range(256)
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]
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