import collections
+import contextlib
import openpower.oppc.pc_ast as pc_ast
import openpower.oppc.pc_util as pc_util
+import openpower.oppc.pc_pseudocode as pc_pseudocode
+
+
+class Transient(pc_ast.Node):
+ def __init__(self, value="UINT64_C(0)", bits="(uint8_t)OPPC_XLEN"):
+ self.__value = value
+ self.__bits = bits
+
+ return super().__init__()
+
+ def __repr__(self):
+ return f"{hex(id(self))}@{self.__class__.__name__}({self.__value}, {self.__bits})"
+
+ def __str__(self):
+ return f"oppc_transient(&(struct oppc_value){{}}, {self.__value}, {self.__bits})"
+
+
+class Call(pc_ast.Dataclass):
+ name: str
+ code: tuple
+ stmt: bool
+
+
+class Instruction(pc_ast.Node):
+ pass
class CodeVisitor(pc_util.Visitor):
- def __init__(self, name, root):
+ def __init__(self, insn, root):
+ if not isinstance(root, pc_ast.Scope):
+ raise ValueError(root)
+
self.__root = root
+ self.__insn = insn
+ self.__decls = set()
self.__header = object()
self.__footer = object()
self.__code = collections.defaultdict(lambda: pc_util.Code())
- self.__decls = collections.defaultdict(list)
self.__regfetch = collections.defaultdict(list)
self.__regstore = collections.defaultdict(list)
+ self.__pseudocode = pc_pseudocode.PseudocodeVisitor(root=root)
super().__init__(root=root)
- self.__code[self.__header].emit("void")
- self.__code[self.__header].emit(f"oppc_{name}(void) {{")
- with self.__code[self.__header]:
- for decl in self.__decls:
- self.__code[self.__header].emit(f"uint64_t {decl};")
- self.__code[self.__footer].emit(f"}}")
+ for decl in self.__decls:
+ self.__code[self.__header].emit(stmt=f"struct oppc_value {decl};")
+ decls = sorted(filter(lambda decl: decl in insn.fields, self.__decls))
+ if decls:
+ self.__code[self.__header].emit()
+ for decl in decls:
+ bits = f"{len(insn.fields[decl])}"
+ transient = Transient(bits=bits)
+ symbol = pc_ast.Symbol(decl)
+ assign = pc_ast.AssignExpr(lvalue=symbol, rvalue=transient)
+ self.traverse(root=assign)
+ for (level, stmt) in self[assign]:
+ self[self.__header].emit(stmt=stmt, level=level)
+ for (lbit, rbit) in enumerate(insn.fields[decl]):
+ lsymbol = pc_ast.Symbol(decl)
+ rsymbol = Instruction()
+ lindex = Transient(value=str(lbit))
+ rindex = Transient(value=str(rbit))
+ lvalue = pc_ast.SubscriptExpr(index=lindex, subject=lsymbol)
+ rvalue = pc_ast.SubscriptExpr(index=rindex, subject=rsymbol)
+ assign = pc_ast.AssignExpr(lvalue=lvalue, rvalue=rvalue)
+ self.traverse(root=assign)
+ for (level, stmt) in self[assign]:
+ self[self.__header].emit(stmt=stmt, level=level)
+ self.__code[self.__header].emit()
+ if decls:
+ self.__code[self.__header].emit()
def __iter__(self):
- yield from self.__code[self.__header]
- yield from self.__code[self.__root]
- yield from self.__code[self.__footer]
+ yield from self[self.__header]
+ for (level, stmt) in self[self.__root]:
+ yield ((level - 1), stmt)
+ yield from self[self.__footer]
def __getitem__(self, node):
return self.__code[node]
+ def __setitem__(self, node, code):
+ self.__code[node] = code
+
+ def transient(self,
+ value="UINT64_C(0)",
+ bits="(uint8_t)OPPC_XLEN"):
+ transient = Transient(value=value, bits=bits)
+ self.traverse(root=transient)
+ return transient
+
+ def call(self, name, code, stmt=False):
+ def validate(item):
+ def validate(item):
+ (level, stmt) = item
+ if not isinstance(level, int):
+ raise ValueError(level)
+ if not isinstance(stmt, str):
+ raise ValueError(stmt)
+ return (level, stmt)
+
+ return tuple(map(validate, item))
+
+ code = tuple(map(validate, code))
+ call = Call(name=name, code=code, stmt=stmt)
+ self.traverse(root=call)
+ return call
+
+ def fixup_ternary(self, node):
+ self[node].clear()
+ test = self.call(name="oppc_cast_bool", code=[
+ self[node.test],
+ ])
+ self[node].emit(stmt="(")
+ with self[node]:
+ for (level, stmt) in self[test]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt="?")
+ for (level, stmt) in self[node.body]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt=":")
+ for (level, stmt) in self[node.orelse]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt=")")
+
+ def fixup_attr(self, node, assign=False):
+ root = node
+ code = tuple(self[root])
+ attribute_or_subscript = (
+ pc_ast.Attribute,
+ pc_ast.SubscriptExpr,
+ pc_ast.RangeSubscriptExpr,
+ )
+ while isinstance(node.subject, attribute_or_subscript):
+ node = node.subject
+
+ def wrap(code):
+ def wrap(item):
+ (level, stmt) = item
+ if not (not stmt or
+ stmt.startswith("/*") or
+ stmt.endswith((",", "(", "{", "*/"))):
+ stmt = (stmt + ",")
+ return (level, stmt)
+
+ return tuple(map(wrap, code))
+
+ code = pc_util.Code()
+ for (level, stmt) in wrap(self[node.subject]):
+ code.emit(stmt=stmt, level=level)
+ for (level, stmt) in wrap(self[root]):
+ code.emit(stmt=stmt, level=level)
+
+ # discard the last comma
+ (level, stmt) = code[-1]
+ code[-1] = (level, stmt[:-1])
+
+ if not assign:
+ call = self.call(name="oppc_attr", code=[
+ code,
+ ])
+ code = self[call]
+ self[root] = code
+
+ @contextlib.contextmanager
+ def pseudocode(self, node):
+ if node in self.__pseudocode:
+ for (level, stmt) in self.__pseudocode[node]:
+ self[node].emit(stmt=f"/* {stmt} */", level=level)
+ yield
+
@pc_util.Hook(pc_ast.Scope)
def Scope(self, node):
yield node
if isinstance(node.rvalue, (pc_ast.GPR, pc_ast.FPR)):
self.__regfetch[str(node.rvalue)].append(node.rvalue)
- stmt = " ".join([
- str(self[node.lvalue]),
- "=",
- str(self[node.rvalue]),
- ])
- self[node].emit(stmt=f"{stmt};")
+ if isinstance(node.rvalue, pc_ast.IfExpr):
+ self.fixup_ternary(node=node.rvalue)
+ if isinstance(node.lvalue, pc_ast.Attribute):
+ self.fixup_attr(node=node.lvalue, assign=True)
+ if isinstance(node.rvalue, pc_ast.Attribute):
+ self.fixup_attr(node=node.rvalue)
+
+ if isinstance(node.lvalue, pc_ast.Sequence):
+ if not isinstance(node.rvalue, pc_ast.Sequence):
+ raise ValueError(node.rvalue)
+ if len(node.lvalue) != len(node.rvalue):
+ raise ValueError(node)
+ for (lvalue, rvalue) in zip(node.lvalue, node.rvalue):
+ assign = node.__class__(
+ lvalue=lvalue.clone(),
+ rvalue=rvalue.clone(),
+ )
+ self.traverse(root=assign)
+ for (level, stmt) in self[assign]:
+ self[node].emit(stmt=stmt, level=level)
+ return
+
+ if isinstance(node.lvalue, pc_ast.SubscriptExpr):
+ call = self.call(name="oppc_subscript_assign", stmt=True, code=[
+ self[node.lvalue.subject],
+ self[node.lvalue.index],
+ self[node.rvalue],
+ ])
+ elif isinstance(node.lvalue, pc_ast.RangeSubscriptExpr):
+ call = self.call(name="oppc_range_subscript_assign", stmt=True, code=[
+ self[node.lvalue.subject],
+ self[node.lvalue.start],
+ self[node.lvalue.end],
+ self[node.rvalue],
+ ])
+ elif isinstance(node.lvalue, pc_ast.Attribute):
+ call = self.call(name="oppc_attr_assign", stmt=True, code=[
+ self[node.lvalue],
+ self[node.rvalue],
+ ])
+ else:
+ call = self.call(name="oppc_assign", stmt=True, code=[
+ self[node.lvalue],
+ self[node.rvalue],
+ ])
+ with self.pseudocode(node=node):
+ for (level, stmt) in self[call]:
+ self[node].emit(stmt=stmt, level=level)
@pc_util.Hook(pc_ast.BinaryExpr)
def BinaryExpr(self, node):
self.__regfetch[str(node.left)].append(node.left)
if isinstance(node.right, (pc_ast.GPR, pc_ast.FPR)):
self.__regfetch[str(node.right)].append(node.left)
- special = (
- pc_ast.MulS,
- pc_ast.MulU,
- pc_ast.DivT,
- pc_ast.Sqrt,
- pc_ast.BitConcat
+
+ if isinstance(node.left, pc_ast.IfExpr):
+ self.fixup_ternary(node=node.left)
+ if isinstance(node.right, pc_ast.IfExpr):
+ self.fixup_ternary(node=node.right)
+ if isinstance(node.left, pc_ast.Attribute):
+ self.fixup_attr(node=node.left)
+ if isinstance(node.right, pc_ast.Attribute):
+ self.fixup_attr(node=node.right)
+
+ comparison = (
+ pc_ast.Lt, pc_ast.Le,
+ pc_ast.Eq, pc_ast.Ne,
+ pc_ast.Ge, pc_ast.Gt,
+ pc_ast.LtU, pc_ast.GtU,
)
- if isinstance(node.op, special):
- raise NotImplementedError(node)
- stmt = " ".join([
- str(self[node.left]),
- str(self[node.op]),
- str(self[node.right]),
+ if isinstance(node.op, comparison):
+ transient = self.transient(bits="UINT8_C(1)")
+ else:
+ transient = self.transient()
+ call = self.call(name=str(self[node.op]), code=[
+ self[transient],
+ self[node.left],
+ self[node.right],
])
- self[node].emit(stmt=f"({stmt})")
+ with self.pseudocode(node=node):
+ for (level, stmt) in self[call]:
+ self[node].emit(stmt=stmt, level=level)
@pc_util.Hook(pc_ast.UnaryExpr)
def UnaryExpr(self, node):
yield node
- stmt = "".join([
- str(self[node.op]),
- f"({str(self[node.value])})",
+ if isinstance(node.value, pc_ast.IfExpr):
+ self.fixup_ternary(node=node.value)
+ transient = self.transient()
+ call = self.call(name=str(self[node.op]), code=[
+ self[transient],
+ self[node.value],
])
- self[node].emit(stmt=stmt)
+ with self.pseudocode(node=node):
+ for (level, stmt) in self[call]:
+ self[node].emit(stmt=stmt, level=level)
@pc_util.Hook(
pc_ast.Not, pc_ast.Add, pc_ast.Sub,
pc_ast.Mul, pc_ast.Div, pc_ast.Mod,
pc_ast.Lt, pc_ast.Le,
- pc_ast.Eq, pc_ast.NotEq,
+ pc_ast.Eq, pc_ast.Ne,
pc_ast.Ge, pc_ast.Gt,
+ pc_ast.LtU, pc_ast.GtU,
pc_ast.LShift, pc_ast.RShift,
pc_ast.BitAnd, pc_ast.BitOr, pc_ast.BitXor,
+ pc_ast.BitConcat,
)
def Op(self, node):
yield node
op = {
- pc_ast.Not: "~",
- pc_ast.Add: "+",
- pc_ast.Sub: "-",
- pc_ast.Mul: "*",
- pc_ast.Div: "/",
- pc_ast.Mod: "%",
- pc_ast.Lt: "<",
- pc_ast.Le: "<=",
- pc_ast.Eq: "==",
- pc_ast.NotEq: "!=",
- pc_ast.Ge: ">=",
- pc_ast.Gt: ">",
- pc_ast.LShift: "<<",
- pc_ast.RShift: "<<",
- pc_ast.BitAnd: "&",
- pc_ast.BitOr: "|",
- pc_ast.BitXor: "^",
+ pc_ast.Not: "oppc_not",
+ pc_ast.Add: "oppc_add",
+ pc_ast.Sub: "oppc_sub",
+ pc_ast.Mul: "oppc_mul",
+ pc_ast.Div: "oppc_div",
+ pc_ast.Mod: "oppc_mod",
+ pc_ast.Lt: "oppc_lt",
+ pc_ast.Le: "oppc_le",
+ pc_ast.Eq: "oppc_eq",
+ pc_ast.Ne: "oppc_ne",
+ pc_ast.LtU: "oppc_ltu",
+ pc_ast.GtU: "oppc_gtu",
+ pc_ast.Ge: "oppc_ge",
+ pc_ast.Gt: "oppc_gt",
+ pc_ast.LShift: "oppc_lshift",
+ pc_ast.RShift: "oppc_rshift",
+ pc_ast.BitAnd: "oppc_and",
+ pc_ast.BitOr: "oppc_or",
+ pc_ast.BitXor: "oppc_xor",
+ pc_ast.BitConcat: "oppc_concat",
}[node.__class__]
self[node].emit(stmt=op)
+ @pc_util.Hook(pc_ast.StringLiteral)
+ def StringLiteral(self, node):
+ yield node
+ escaped = repr(str(node))[1:-1]
+ self[node].emit(stmt=f"\"{escaped}\"")
+
@pc_util.Hook(pc_ast.BinLiteral, pc_ast.DecLiteral, pc_ast.HexLiteral)
def Integer(self, node):
yield node
+ fmt = hex
+ value = str(node)
if isinstance(node, pc_ast.BinLiteral):
- base = 2
- elif isinstance(node, pc_ast.DecLiteral):
- base = 10
+ bits = f"UINT8_C({str(len(value[2:]))})"
+ value = int(value, 2)
elif isinstance(node, pc_ast.HexLiteral):
- base = 16
+ bits = f"UINT8_C({str(len(value[2:]) * 4)})"
+ value = int(value, 16)
else:
- raise ValueError(node)
- self[node].emit(stmt=f"UINT64_C({hex(int(node, base))})")
+ bits = "(uint8_t)OPPC_XLEN"
+ value = int(value)
+ fmt = str
+ if (value > ((2**64) - 1)):
+ raise NotImplementedError()
+ value = f"UINT64_C({fmt(value)})"
+ transient = self.transient(value=value, bits=bits)
+ with self.pseudocode(node=node):
+ for (level, stmt) in self[transient]:
+ self[node].emit(stmt=stmt, level=level)
+
+ @pc_util.Hook(Transient)
+ def Transient(self, node):
+ yield node
+ self[node].emit(stmt=str(node))
+
+ @pc_util.Hook(Call)
+ def CCall(self, node):
+ yield node
+ end = (";" if node.stmt else "")
+ if len(node.code) == 0:
+ self[node].emit(stmt=f"{str(node.name)}(){end}")
+ else:
+ self[node].emit(stmt=f"{str(node.name)}(")
+ with self[node]:
+ (*head, tail) = node.code
+ for code in head:
+ for (level, stmt) in code:
+ self[node].emit(stmt=stmt, level=level)
+ (level, stmt) = self[node][-1]
+ if not (not stmt or
+ stmt.startswith("/*") or
+ stmt.endswith((",", "(", "{", "*/"))):
+ stmt = (stmt + ",")
+ self[node][-1] = (level, stmt)
+ for (level, stmt) in tail:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt=f"){end}")
@pc_util.Hook(pc_ast.GPR)
def GPR(self, node):
yield node
- self[node].emit(stmt=f"ctx->gpr[OPPC_GPR_{str(node)}]")
+ with self.pseudocode(node=node):
+ self[node].emit(stmt=f"OPPC_GPR_{str(node)}")
+
+ @pc_util.Hook(pc_ast.GPRZero)
+ def GPRZero(self, node):
+ yield node
+ name = str(node)
+ test = pc_ast.Symbol(name)
+ body = pc_ast.Scope([pc_ast.GPR(name)])
+ orelse = pc_ast.Scope([Transient()])
+ ifexpr = pc_ast.IfExpr(test=test, body=body, orelse=orelse)
+ self.traverse(root=ifexpr)
+ self.fixup_ternary(node=ifexpr)
+ for (level, stmt) in self[ifexpr]:
+ self[node].emit(stmt=stmt, level=level)
@pc_util.Hook(pc_ast.FPR)
def FPR(self, node):
yield node
- self[node].emit(stmt=f"ctx->fpr[OPPC_FPR_{str(node)}]")
+ with self.pseudocode(node=node):
+ self[node].emit(stmt=f"OPPC_FPR_{str(node)}")
@pc_util.Hook(pc_ast.RepeatExpr)
def RepeatExpr(self, node):
yield node
- subject = str(self[node.subject])
- times = str(self[node.times])
- self[node].emit(f"oppc_repeat({subject}, {times})")
+ transient = self.transient()
+ call = self.call(name="oppc_repeat", code=[
+ self[transient],
+ self[node.subject],
+ self[node.times],
+ ])
+ for (level, stmt) in self[call]:
+ self[node].emit(stmt=stmt, level=level)
@pc_util.Hook(pc_ast.XLEN)
def XLEN(self, node):
yield node
- self[node].emit(f"ctx->XLEN")
+ (value, bits) = ("OPPC_XLEN", "(uint8_t)OPPC_XLEN")
+ transient = self.transient(value=value, bits=bits)
+ with self.pseudocode(node=node):
+ for (level, stmt) in self[transient]:
+ self[node].emit(stmt=stmt, level=level)
+
+ @pc_util.Hook(pc_ast.Overflow, pc_ast.CR3, pc_ast.CR5,
+ pc_ast.XER, pc_ast.Reserve, pc_ast.Special)
+ def Special(self, node):
+ yield node
+ with self.pseudocode(node=node):
+ self[node].emit(stmt=f"OPPC_{str(node).upper()}")
+
+ @pc_util.Hook(pc_ast.SubscriptExpr)
+ def SubscriptExpr(self, node):
+ yield node
+ transient = self.transient(bits="UINT8_C(1)")
+ call = self.call(name="oppc_subscript", code=[
+ self[transient],
+ self[node.subject],
+ self[node.index],
+ ])
+ for (level, stmt) in self[call]:
+ self[node].emit(stmt=stmt, level=level)
+
+ @pc_util.Hook(pc_ast.RangeSubscriptExpr)
+ def RangeSubscriptExpr(self, node):
+ yield node
+ transient = self.transient()
+ call = self.call(name="oppc_range_subscript", code=[
+ self[transient],
+ self[node.subject],
+ self[node.start],
+ self[node.end],
+ ])
+ for (level, stmt) in self[call]:
+ self[node].emit(stmt=stmt, level=level)
+
+ @pc_util.Hook(pc_ast.ForExpr)
+ def ForExpr(self, node):
+ yield node
+
+ enter = pc_ast.AssignExpr(
+ lvalue=node.subject.clone(),
+ rvalue=node.start.clone(),
+ )
+ match = pc_ast.BinaryExpr(
+ left=node.subject.clone(),
+ op=pc_ast.Le("<="),
+ right=node.end.clone(),
+ )
+ leave = pc_ast.AssignExpr(
+ lvalue=node.subject.clone(),
+ rvalue=pc_ast.BinaryExpr(
+ left=node.subject.clone(),
+ op=pc_ast.Add("+"),
+ right=node.end.clone(),
+ ),
+ )
+ with self.pseudocode(node=node):
+ (level, stmt) = self[node][0]
+ self[node].clear()
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt="for (")
+ with self[node]:
+ with self[node]:
+ for subnode in (enter, match, leave):
+ self.__pseudocode.traverse(root=subnode)
+ self.traverse(root=subnode)
+ for (level, stmt) in self[subnode]:
+ self[node].emit(stmt=stmt, level=level)
+ (level, stmt) = self[node][-1]
+ if subnode is match:
+ stmt = f"{stmt};"
+ elif subnode is leave:
+ stmt = stmt[:-1]
+ self[node][-1] = (level, stmt)
+ (level, stmt) = self[node][0]
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt=") {")
+ for (level, stmt) in self[node.body]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt="}")
+
+ @pc_util.Hook(pc_ast.WhileExpr)
+ def WhileExpr(self, node):
+ yield node
+ self[node].emit(stmt="while (")
+ with self[node]:
+ with self[node]:
+ for (level, stmt) in self[node.test]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(") {")
+ for (level, stmt) in self[node.body]:
+ self[node].emit(stmt=stmt, level=level)
+ if node.orelse:
+ self[node].emit(stmt="} else {")
+ for (level, stmt) in self[node.orelse]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt="}")
+
+ @pc_util.Hook(pc_ast.IfExpr)
+ def IfExpr(self, node):
+ yield node
+ test = self.call(name="oppc_cast_bool", code=[
+ self[node.test],
+ ])
+ self[node].emit(stmt="if (")
+ with self[node]:
+ for (level, stmt) in self[test]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt=") {")
+ for (level, stmt) in self[node.body]:
+ self[node].emit(stmt=stmt, level=level)
+ if node.orelse:
+ self[node].emit(stmt="} else {")
+ for (level, stmt) in self[node.orelse]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(stmt="}")
+
+ @pc_util.Hook(pc_ast.SwitchExpr)
+ def SwitchExpr(self, node):
+ yield node
+ subject = self.call(name="oppc_cast_int64", code=[
+ self[node.subject],
+ ])
+ self[node].emit(stmt="switch (")
+ with self[node]:
+ for (level, stmt) in self[subject]:
+ self[node].emit(stmt=stmt, level=level)
+ self[node].emit(") {")
+ with self[node]:
+ for (level, stmt) in self[node.cases]:
+ self[node].emit(stmt=stmt, level=level)
+
+ @pc_util.Hook(pc_ast.Cases)
+ def Cases(self, node):
+ yield node
+ for subnode in node:
+ for (level, stmt) in self[subnode]:
+ self[node].emit(stmt=stmt, level=level)
+
+ @pc_util.Hook(pc_ast.Case)
+ def Case(self, node):
+ yield node
+ for (level, stmt) in self[node.labels]:
+ self[node].emit(stmt=stmt, level=level)
+ for (level, stmt) in self[node.body]:
+ self[node].emit(stmt=stmt, level=level)
+
+ @pc_util.Hook(pc_ast.Labels)
+ def Labels(self, node):
+ yield node
+ if ((len(node) == 1) and isinstance(node[-1], pc_ast.DefaultLabel)):
+ stmt = "default:"
+ else:
+ labels = ", ".join(map(lambda label: str(self[label]), node))
+ stmt = f"case ({labels}):"
+ self[node].emit(stmt=stmt)
+
+ @pc_util.Hook(pc_ast.Label)
+ def Label(self, node):
+ yield node
+ self[node].emit(stmt=str(node))
+
+ @pc_util.Hook(pc_ast.LeaveKeyword)
+ def LeaveKeyword(self, node):
+ yield node
+ self[node].emit(stmt="break;")
@pc_util.Hook(pc_ast.Call.Name)
def CallName(self, node):
yield node
+ self[node].emit(stmt=str(node))
@pc_util.Hook(pc_ast.Call.Arguments)
def CallArguments(self, node):
if isinstance(subnode, (pc_ast.GPR, pc_ast.FPR)):
self.__regfetch[str(subnode)].append(subnode)
+ @pc_util.Hook(pc_ast.Call)
+ def Call(self, node):
+ yield node
+ if node.args:
+ transient = self.transient()
+ code = [self[transient]]
+ else:
+ code = []
+ code.extend(map(lambda arg: self[arg], node.args))
+ name = f"OPPC_CALL_{str(node.name)}"
+ with self.pseudocode(node=node):
+ call = self.call(name=name, code=code)
+ for (level, stmt) in self[call]:
+ self[node].emit(stmt=stmt, level=level)
+
+ @pc_util.Hook(pc_ast.Attribute.Name)
+ def AttributeName(self, node):
+ yield node
+
+ @pc_util.Hook(pc_ast.Sequence)
+ def Sequence(self, node):
+ yield node
+
+ @pc_util.Hook(pc_ast.Attribute)
+ def Attribute(self, node):
+ yield node
+ attr = str(self.__pseudocode[node])
+ symbol = f"OPPC_ATTR_{attr.replace('.', '_')}"
+ self[node].emit(f"/* {attr} */")
+ self[node].emit(stmt=symbol)
+
@pc_util.Hook(pc_ast.Symbol)
def Symbol(self, node):
yield node
- self.__decls[str(node)].append(node)
- self[node].emit(stmt=str(node))
+ with self.pseudocode(node=node):
+ decl = str(node)
+ if decl not in ("fallthrough",):
+ if decl in ("TRAP",):
+ self[node].emit(stmt=f"OPPC_CALL_{decl}();")
+ else:
+ if node in self.__pseudocode:
+ self.__decls.add(decl)
+ self[node].emit(stmt=f"&{decl}")
+
+ @pc_util.Hook(Instruction)
+ def Instruction(self, node):
+ yield node
+ self[node].emit("insn")
@pc_util.Hook(pc_ast.Node)
def Node(self, node):
raise NotImplementedError(type(node))
-def code(name, root):
- yield from CodeVisitor(name=name, root=root)
+def code(insn, root):
+ yield from CodeVisitor(insn=insn, root=root)
projects / openpower-isa.git / blobdiff