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gh-105481: simplify definition of pseudo ops in Lib/opcode.py (#107561)

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Irit Katriel 2023-08-02 18:16:57 +01:00 • committed by GitHub
parent b9c9a36c2f
commit dd693d6320
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5 changed files with 23 additions and 40 deletions
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44
Lib/opcode.py
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@ -19,23 +19,11 @@ if sys.version_info[:2] >= (3, 13):
cmp_op = ('<', '<=', '==', '!=', '>', '>=')
def is_pseudo(op):
return op >= MIN_PSEUDO_OPCODE and op <= MAX_PSEUDO_OPCODE
opmap = {}
# pseudo opcodes (used in the compiler) mapped to the values
# they can become in the actual code.
_pseudo_ops = {}
def def_op(name, op):
opmap[name] = op
def pseudo_op(name, op, real_ops):
def_op(name, op)
_pseudo_ops[name] = real_ops
# Instruction opcodes for compiled code
# Blank lines correspond to available opcodes
@ -212,29 +200,27 @@ def_op('INSTRUMENTED_LINE', 254)
# 255 is reserved
MIN_PSEUDO_OPCODE = 256
# Pseudo ops are above 255:
pseudo_op('SETUP_FINALLY', 256, ['NOP'])
pseudo_op('SETUP_CLEANUP', 257, ['NOP'])
pseudo_op('SETUP_WITH', 258, ['NOP'])
pseudo_op('POP_BLOCK', 259, ['NOP'])
def_op('SETUP_FINALLY', 256)
def_op('SETUP_CLEANUP', 257)
def_op('SETUP_WITH', 258)
def_op('POP_BLOCK', 259)
pseudo_op('JUMP', 260, ['JUMP_FORWARD', 'JUMP_BACKWARD'])
pseudo_op('JUMP_NO_INTERRUPT', 261, ['JUMP_FORWARD', 'JUMP_BACKWARD_NO_INTERRUPT'])
def_op('JUMP', 260)
def_op('JUMP_NO_INTERRUPT', 261)
pseudo_op('LOAD_METHOD', 262, ['LOAD_ATTR'])
pseudo_op('LOAD_SUPER_METHOD', 263, ['LOAD_SUPER_ATTR'])
pseudo_op('LOAD_ZERO_SUPER_METHOD', 264, ['LOAD_SUPER_ATTR'])
pseudo_op('LOAD_ZERO_SUPER_ATTR', 265, ['LOAD_SUPER_ATTR'])
def_op('LOAD_METHOD', 262)
def_op('LOAD_SUPER_METHOD', 263)
def_op('LOAD_ZERO_SUPER_METHOD', 264)
def_op('LOAD_ZERO_SUPER_ATTR', 265)
pseudo_op('STORE_FAST_MAYBE_NULL', 266, ['STORE_FAST'])
pseudo_op('LOAD_CLOSURE', 267, ['LOAD_FAST'])
def_op('STORE_FAST_MAYBE_NULL', 266)
def_op('LOAD_CLOSURE', 267)
MAX_PSEUDO_OPCODE = MIN_PSEUDO_OPCODE + len(_pseudo_ops) - 1
del def_op
del def_op, pseudo_op
opname = ['<%r>' % (op,) for op in range(MAX_PSEUDO_OPCODE + 1)]
opname = ['<%r>' % (op,) for op in range(max(opmap.values()) + 1)]
for op, i in opmap.items():
opname[i] = op