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compiler: add builtinInvoke for subkernel raising functions

This commit is contained in:
mwojcik 2024-06-25 13:16:03 +08:00 committed by Sébastien Bourdeauducq
parent fb8dd01e8d
commit c5c5708f49
4 changed files with 106 additions and 6 deletions
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36
artiq/compiler/ir.py
View File

@ -1047,6 +1047,42 @@ class Builtin(Instruction):
def opcode(self):
return "builtin({})".format(self.op)
class BuiltinInvoke(Terminator):
"""
A builtin operation which can raise exceptions.
:ivar op: (string) operation name
"""
"""
:param op: (string) operation name
:param normal: (:class:`BasicBlock`) normal target
:param exn: (:class:`BasicBlock`) exceptional target
"""
def __init__(self, op, operands, typ, normal, exn, name=None):
assert isinstance(op, str)
for operand in operands: assert isinstance(operand, Value)
assert isinstance(normal, BasicBlock)
assert isinstance(exn, BasicBlock)
if name is None:
name = "BLTINV.{}".format(op)
super().__init__(operands + [normal, exn], typ, name)
self.op = op
def copy(self, mapper):
self_copy = super().copy(mapper)
self_copy.op = self.op
return self_copy
def normal_target(self):
return self.operands[-2]
def exception_target(self):
return self.operands[-1]
def opcode(self):
return "builtinInvokable({})".format(self.op)
class Closure(Instruction):
"""
A closure creation operation.

23
artiq/compiler/transforms/artiq_ir_generator.py
View File

@ -2544,10 +2544,22 @@ class ARTIQIRGenerator(algorithm.Visitor):
fn = types.get_method_function(fn)
sid = ir.Constant(fn.sid, builtins.TInt32())
if not builtins.is_none(fn.ret):
if self.unwind_target is None:
ret = self.append(ir.Builtin("subkernel_retrieve_return", [sid, timeout], fn.ret))
else:
after_invoke = self.add_block("invoke")
ret = self.append(ir.BuiltinInvoke("subkernel_retrieve_return", [sid, timeout],
fn.ret, after_invoke, self.unwind_target))
self.current_block = after_invoke
else:
ret = ir.Constant(None, builtins.TNone())
if self.unwind_target is None:
self.append(ir.Builtin("subkernel_await_finish", [sid, timeout], builtins.TNone()))
else:
after_invoke = self.add_block("invoke")
self.append(ir.BuiltinInvoke("subkernel_await_finish", [sid, timeout],
builtins.TNone(), after_invoke, self.unwind_target))
self.current_block = after_invoke
return ret
elif types.is_builtin(typ, "subkernel_preload"):
if len(node.args) == 1 and len(node.keywords) == 0:
@ -2594,7 +2606,14 @@ class ARTIQIRGenerator(algorithm.Visitor):
{"name": name, "recv": vartype, "send": msg.value_type},
node.loc)
self.engine.process(diag)
return self.append(ir.Builtin("subkernel_recv", [msg_id, timeout], vartype))
if self.unwind_target is None:
ret = self.append(ir.Builtin("subkernel_recv", [msg_id, timeout], vartype))
else:
after_invoke = self.add_block("invoke")
ret = self.append(ir.BuiltinInvoke("subkernel_recv", [msg_id, timeout],
vartype, after_invoke, self.unwind_target))
self.current_block = after_invoke
return ret
elif types.is_exn_constructor(typ):
return self.alloc_exn(node.type, *[self.visit(arg_node) for arg_node in node.args])
elif types.is_constructor(typ):
@ -2946,7 +2965,7 @@ class ARTIQIRGenerator(algorithm.Visitor):
format_string += ")"
elif builtins.is_exception(value.type):
# message may not be an actual string...
# so we cannot really print it
# so we cannot really print itInvoke
name = self.append(ir.GetAttr(value, "#__name__"))
param1 = self.append(ir.GetAttr(value, "#__param0__"))
param2 = self.append(ir.GetAttr(value, "#__param1__"))

38
artiq/compiler/transforms/llvm_ir_generator.py
View File

@ -1437,6 +1437,44 @@ class LLVMIRGenerator:
else:
assert False
def process_BuiltinInvoke(self, insn):
llnormalblock = self.map(insn.normal_target())
llunwindblock = self.map(insn.exception_target())
if insn.op == "subkernel_retrieve_return":
llsid = self.map(insn.operands[0])
lltimeout = self.map(insn.operands[1])
lltagptr = self._build_subkernel_tags([insn.type])
llheadu = self.llbuilder.append_basic_block(name="subkernel.await.unwind")
self.llbuilder.invoke(self.llbuiltin("subkernel_await_message"),
[llsid, lltimeout, lltagptr, ll.Constant(lli8, 1), ll.Constant(lli8, 1)],
llheadu, llunwindblock,
name="subkernel.await.message")
self.llbuilder.position_at_end(llheadu)
llstackptr = self.llbuilder.call(self.llbuiltin("llvm.stacksave"), [],
name="subkernel.arg.stack")
return self._build_rpc_recv(insn.type, llstackptr, llnormalblock, llunwindblock)
elif insn.op == "subkernel_await_finish":
llsid = self.map(insn.operands[0])
lltimeout = self.map(insn.operands[1])
return self.llbuilder.invoke(self.llbuiltin("subkernel_await_finish"), [llsid, lltimeout],
llnormalblock, llunwindblock,
name="subkernel.await.finish")
elif insn.op == "subkernel_recv":
llmsgid = self.map(insn.operands[0])
lltimeout = self.map(insn.operands[1])
lltagptr = self._build_subkernel_tags([insn.type])
llheadu = self.llbuilder.append_basic_block(name="subkernel.await.unwind")
self.llbuilder.invoke(self.llbuiltin("subkernel_await_message"),
[llmsgid, lltimeout, lltagptr, ll.Constant(lli8, 1), ll.Constant(lli8, 1)],
llheadu, llunwindblock,
name="subkernel.await.message")
self.llbuilder.position_at_end(llheadu)
llstackptr = self.llbuilder.call(self.llbuiltin("llvm.stacksave"), [],
name="subkernel.arg.stack")
return self._build_rpc_recv(insn.type, llstackptr, llnormalblock, llunwindblock)
else:
assert False
def process_SubkernelAwaitArgs(self, insn):
llmin = self.map(insn.operands[0])
llmax = self.map(insn.operands[1])

11
artiq/firmware/runtime/kernel.rs
View File

@ -278,8 +278,15 @@ pub mod subkernel {
{
let mut reader = Cursor::new(buffer);
let _sync = reader.read_u32()?;
let _9 = reader.read_u8()?;
let mut byte = reader.read_u8()?;
// to sync
while byte != 0x5a {
byte = reader.read_u8()?;
}
// skip sync bytes, 0x09 indicates exception
while byte != 0x09 {
byte = reader.read_u8()?;
}
let _len = reader.read_u32()?;
// ignore the remaining exceptions, stack traces etc. - unwinding from another device would be unwise anyway
Ok(Exception {