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gh-112519: Make it possible to specify instruction flags for pseudo instructions in bytecodes.c (#112520)

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Irit Katriel 2023-11-30 11:03:30 +00:00 • committed by GitHub
parent 7eeea13403
commit 07ebd46f9e
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6 changed files with 76 additions and 12 deletions
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25
Tools/cases_generator/parsing.py
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@ -138,7 +138,8 @@ class Family(Node):
@dataclass
class Pseudo(Node):
name: str
targets: list[str] # opcodes this can be replaced by
flags: list[str] # instr flags to set on the pseudo instruction
targets: list[str] # opcodes this can be replaced by
class Parser(PLexer):
@ -374,19 +375,39 @@ class Parser(PLexer):
)
return None
def flags(self) -> list[str]:
here = self.getpos()
if self.expect(lx.LPAREN):
if tkn := self.expect(lx.IDENTIFIER):
flags = [tkn.text]
while self.expect(lx.COMMA):
if tkn := self.expect(lx.IDENTIFIER):
flags.append(tkn.text)
else:
break
if not self.expect(lx.RPAREN):
raise self.make_syntax_error("Expected comma or right paren")
return flags
self.setpos(here)
return []
@contextual
def pseudo_def(self) -> Pseudo | None:
if (tkn := self.expect(lx.IDENTIFIER)) and tkn.text == "pseudo":
size = None
if self.expect(lx.LPAREN):
if tkn := self.expect(lx.IDENTIFIER):
if self.expect(lx.COMMA):
flags = self.flags()
else:
flags = []
if self.expect(lx.RPAREN):
if self.expect(lx.EQUALS):
if not self.expect(lx.LBRACE):
raise self.make_syntax_error("Expected {")
if members := self.members():
if self.expect(lx.RBRACE) and self.expect(lx.SEMI):
return Pseudo(tkn.text, members)
return Pseudo(tkn.text, flags, members)
return None
def members(self) -> list[str] | None: