nac3/nac3artiq/src/lib.rs

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use std::collections::{HashMap, HashSet};
use std::fs;
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use std::process::Command;
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use std::sync::Arc;
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use inkwell::{
passes::{PassManager, PassManagerBuilder},
targets::*,
OptimizationLevel,
};
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use pyo3::prelude::*;
use pyo3::{exceptions, types::PyList, types::PyBytes};
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use nac3parser::{
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ast::{self, StrRef},
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parser::{self, parse_program},
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};
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use parking_lot::{Mutex, RwLock};
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use nac3core::{
codegen::{concrete_type::ConcreteTypeStore, CodeGenTask, WithCall, WorkerRegistry},
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symbol_resolver::SymbolResolver,
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toplevel::{composer::TopLevelComposer, DefinitionId, GenCall, TopLevelContext, TopLevelDef},
typecheck::typedef::{FunSignature, FuncArg},
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typecheck::{type_inferencer::PrimitiveStore, typedef::Type},
};
use tempfile::{self, TempDir};
use crate::{codegen::ArtiqCodeGenerator, symbol_resolver::Resolver};
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mod codegen;
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mod symbol_resolver;
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mod timeline;
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use timeline::TimeFns;
#[derive(PartialEq, Clone, Copy)]
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enum Isa {
Host,
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RiscV,
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CortexA9,
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}
#[derive(Clone)]
pub struct PrimitivePythonId {
int: u64,
int32: u64,
int64: u64,
float: u64,
bool: u64,
list: u64,
tuple: u64,
}
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// TopLevelComposer is unsendable as it holds the unification table, which is
// unsendable due to Rc. Arc would cause a performance hit.
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#[pyclass(unsendable, name = "NAC3")]
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struct Nac3 {
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isa: Isa,
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time_fns: &'static (dyn TimeFns + Sync),
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primitive: PrimitiveStore,
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builtins_ty: HashMap<StrRef, Type>,
builtins_def: HashMap<StrRef, DefinitionId>,
pyid_to_def: Arc<RwLock<HashMap<u64, DefinitionId>>>,
pyid_to_type: Arc<RwLock<HashMap<u64, Type>>>,
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composer: TopLevelComposer,
top_level: Option<Arc<TopLevelContext>>,
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to_be_registered: Vec<PyObject>,
primitive_ids: PrimitivePythonId,
global_value_ids: Arc<Mutex<HashSet<u64>>>,
working_directory: TempDir,
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}
impl Nac3 {
fn register_module_impl(&mut self, obj: PyObject) -> PyResult<()> {
let mut name_to_pyid: HashMap<StrRef, u64> = HashMap::new();
let (module_name, source_file) = Python::with_gil(|py| -> PyResult<(String, String)> {
let obj: &PyAny = obj.extract(py)?;
let builtins = PyModule::import(py, "builtins")?;
let id_fn = builtins.getattr("id")?;
let members: &PyList = PyModule::import(py, "inspect")?
.getattr("getmembers")?
.call1((obj,))?
.cast_as()?;
for member in members.iter() {
let key: &str = member.get_item(0)?.extract()?;
let val = id_fn.call1((member.get_item(1)?,))?.extract()?;
name_to_pyid.insert(key.into(), val);
}
Ok((
obj.getattr("__name__")?.extract()?,
obj.getattr("__file__")?.extract()?,
))
})?;
let source = fs::read_to_string(source_file).map_err(|e| {
exceptions::PyIOError::new_err(format!("failed to read input file: {}", e))
})?;
let parser_result = parser::parse_program(&source)
.map_err(|e| exceptions::PySyntaxError::new_err(format!("parse error: {}", e)))?;
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let resolver = Arc::new(Resolver {
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id_to_type: self.builtins_ty.clone().into(),
id_to_def: self.builtins_def.clone().into(),
pyid_to_def: self.pyid_to_def.clone(),
pyid_to_type: self.pyid_to_type.clone(),
primitive_ids: self.primitive_ids.clone(),
global_value_ids: self.global_value_ids.clone(),
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class_names: Default::default(),
name_to_pyid: name_to_pyid.clone(),
module: obj,
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}) as Arc<dyn SymbolResolver + Send + Sync>;
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let mut name_to_def = HashMap::new();
let mut name_to_type = HashMap::new();
for mut stmt in parser_result.into_iter() {
let include = match stmt.node {
ast::StmtKind::ClassDef {
ref decorator_list,
ref mut body,
..
} => {
let kernels = decorator_list.iter().any(|decorator| {
if let ast::ExprKind::Name { id, .. } = decorator.node {
id.to_string() == "nac3"
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} else {
false
}
});
body.retain(|stmt| {
if let ast::StmtKind::FunctionDef {
ref decorator_list, ..
} = stmt.node
{
decorator_list.iter().any(|decorator| {
if let ast::ExprKind::Name { id, .. } = decorator.node {
id.to_string() == "kernel" || id.to_string() == "portable"
} else {
false
}
})
} else {
true
}
});
kernels
}
ast::StmtKind::FunctionDef {
ref decorator_list, ..
} => decorator_list.iter().any(|decorator| {
if let ast::ExprKind::Name { id, .. } = decorator.node {
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let id = id.to_string();
id == "extern" || id == "portable" || id == "kernel"
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} else {
false
}
}),
_ => false,
};
if include {
let (name, def_id, ty) = self
.composer
.register_top_level(stmt, Some(resolver.clone()), module_name.clone())
.unwrap();
name_to_def.insert(name, def_id);
if let Some(ty) = ty {
name_to_type.insert(name, ty);
}
}
}
let mut map = self.pyid_to_def.write();
for (name, def) in name_to_def.into_iter() {
map.insert(*name_to_pyid.get(&name).unwrap(), def);
}
let mut map = self.pyid_to_type.write();
for (name, ty) in name_to_type.into_iter() {
map.insert(*name_to_pyid.get(&name).unwrap(), ty);
}
Ok(())
}
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}
#[pymethods]
impl Nac3 {
#[new]
fn new(isa: &str, py: Python) -> PyResult<Self> {
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let isa = match isa {
"host" => Isa::Host,
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"riscv" => Isa::RiscV,
"cortexa9" => Isa::CortexA9,
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_ => return Err(exceptions::PyValueError::new_err("invalid ISA")),
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};
let time_fns: &(dyn TimeFns + Sync) = match isa {
Isa::Host => &timeline::EXTERN_TIME_FNS,
Isa::RiscV => &timeline::NOW_PINNING_TIME_FNS,
Isa::CortexA9 => &timeline::EXTERN_TIME_FNS,
};
let primitive: PrimitiveStore = TopLevelComposer::make_primitives().0;
let builtins = vec![
(
"now_mu".into(),
FunSignature {
args: vec![],
ret: primitive.int64,
vars: HashMap::new(),
},
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Arc::new(GenCall::new(Box::new(move |ctx, _, _, _| {
Some(time_fns.emit_now_mu(ctx))
}))),
),
(
"at_mu".into(),
FunSignature {
args: vec![FuncArg {
name: "t".into(),
ty: primitive.int64,
default_value: None,
}],
ret: primitive.none,
vars: HashMap::new(),
},
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Arc::new(GenCall::new(Box::new(move |ctx, _, _, args| {
time_fns.emit_at_mu(ctx, args[0].1);
None
}))),
),
(
"delay_mu".into(),
FunSignature {
args: vec![FuncArg {
name: "dt".into(),
ty: primitive.int64,
default_value: None,
}],
ret: primitive.none,
vars: HashMap::new(),
},
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Arc::new(GenCall::new(Box::new(move |ctx, _, _, args| {
time_fns.emit_delay_mu(ctx, args[0].1);
None
}))),
),
];
let (composer, builtins_def, builtins_ty) = TopLevelComposer::new(builtins);
let builtins_mod = PyModule::import(py, "builtins").unwrap();
let id_fn = builtins_mod.getattr("id").unwrap();
let numpy_mod = PyModule::import(py, "numpy").unwrap();
let primitive_ids = PrimitivePythonId {
int: id_fn
.call1((builtins_mod.getattr("int").unwrap(),))
.unwrap()
.extract()
.unwrap(),
int32: id_fn
.call1((numpy_mod.getattr("int32").unwrap(),))
.unwrap()
.extract()
.unwrap(),
int64: id_fn
.call1((numpy_mod.getattr("int64").unwrap(),))
.unwrap()
.extract()
.unwrap(),
bool: id_fn
.call1((builtins_mod.getattr("bool").unwrap(),))
.unwrap()
.extract()
.unwrap(),
float: id_fn
.call1((builtins_mod.getattr("float").unwrap(),))
.unwrap()
.extract()
.unwrap(),
list: id_fn
.call1((builtins_mod.getattr("list").unwrap(),))
.unwrap()
.extract()
.unwrap(),
tuple: id_fn
.call1((builtins_mod.getattr("tuple").unwrap(),))
.unwrap()
.extract()
.unwrap(),
};
let working_directory = tempfile::Builder::new().prefix("nac3-").tempdir().unwrap();
fs::write(working_directory.path().join("kernel.ld"), include_bytes!("kernel.ld")).unwrap();
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Ok(Nac3 {
isa,
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time_fns,
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primitive,
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builtins_ty,
builtins_def,
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composer,
primitive_ids,
top_level: None,
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pyid_to_def: Default::default(),
pyid_to_type: Default::default(),
to_be_registered: Default::default(),
global_value_ids: Default::default(),
working_directory
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})
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}
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fn register_module(&mut self, obj: PyObject) {
// Delay registration until all referenced variables are supposed to exist on the CPython side
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self.to_be_registered.push(obj);
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}
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fn analyze(&mut self) -> PyResult<()> {
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for obj in std::mem::take(&mut self.to_be_registered).into_iter() {
self.register_module_impl(obj)?;
}
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Ok(())
}
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fn compile_method_to_file(
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&mut self,
obj: &PyAny,
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method_name: &str,
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args: Vec<&PyAny>,
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filename: &str,
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py: Python,
) -> PyResult<()> {
let id_fun = PyModule::import(py, "builtins")?.getattr("id")?;
let mut name_to_pyid: HashMap<StrRef, u64> = HashMap::new();
let module = PyModule::new(py, "tmp")?;
module.add("base", obj)?;
name_to_pyid.insert("base".into(), id_fun.call1((obj,))?.extract()?);
let mut arg_names = vec![];
for (i, arg) in args.into_iter().enumerate() {
let name = format!("tmp{}", i);
module.add(&name, arg)?;
name_to_pyid.insert(name.clone().into(), id_fun.call1((arg,))?.extract()?);
arg_names.push(name);
}
let synthesized = if method_name.is_empty() {
format!("def __modinit__():\n base({})", arg_names.join(", "))
} else {
format!(
"def __modinit__():\n base.{}({})",
method_name,
arg_names.join(", ")
)
};
let mut synthesized = parse_program(&synthesized).unwrap();
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let resolver = Arc::new(Resolver {
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id_to_type: self.builtins_ty.clone().into(),
id_to_def: self.builtins_def.clone().into(),
pyid_to_def: self.pyid_to_def.clone(),
pyid_to_type: self.pyid_to_type.clone(),
primitive_ids: self.primitive_ids.clone(),
global_value_ids: self.global_value_ids.clone(),
class_names: Default::default(),
name_to_pyid,
module: module.to_object(py),
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}) as Arc<dyn SymbolResolver + Send + Sync>;
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let (_, def_id, _) = self
.composer
.register_top_level(
synthesized.pop().unwrap(),
Some(resolver.clone()),
"".into(),
)
.unwrap();
let signature = FunSignature {
args: vec![],
ret: self.primitive.none,
vars: HashMap::new(),
};
let mut store = ConcreteTypeStore::new();
let mut cache = HashMap::new();
let signature = store.from_signature(
&mut self.composer.unifier,
&self.primitive,
&signature,
&mut cache,
);
let signature = store.add_cty(signature);
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self.composer.start_analysis(true).unwrap();
self.top_level = Some(Arc::new(self.composer.make_top_level_context()));
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let top_level = self.top_level.as_ref().unwrap();
let instance = {
let defs = top_level.definitions.read();
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let mut definition = defs[def_id.0].write();
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if let TopLevelDef::Function {
instance_to_stmt,
instance_to_symbol,
..
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} = &mut *definition
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{
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instance_to_symbol.insert("".to_string(), "__modinit__".into());
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instance_to_stmt[""].clone()
} else {
unreachable!()
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}
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};
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let task = CodeGenTask {
subst: Default::default(),
symbol_name: "__modinit__".to_string(),
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body: instance.body,
signature,
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resolver,
store,
unifier_index: instance.unifier_id,
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calls: instance.calls,
};
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let isa = self.isa;
let working_directory = self.working_directory.path().to_owned();
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let f = Arc::new(WithCall::new(Box::new(move |module| {
let builder = PassManagerBuilder::create();
builder.set_optimization_level(OptimizationLevel::Default);
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let passes = PassManager::create(());
builder.populate_module_pass_manager(&passes);
passes.run_on(module);
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let (triple, features) = match isa {
Isa::Host => (TargetMachine::get_default_triple(), TargetMachine::get_host_cpu_features().to_string()),
Isa::RiscV => (TargetTriple::create("riscv32-unknown-linux"), "+a,+m".to_string()),
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Isa::CortexA9 => (
TargetTriple::create("armv7-unknown-linux-gnueabihf"),
"+dsp,+fp16,+neon,+vfp3".to_string(),
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),
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};
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let target =
Target::from_triple(&triple).expect("couldn't create target from target triple");
let target_machine = target
.create_target_machine(
&triple,
"",
&features,
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OptimizationLevel::Default,
RelocMode::PIC,
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CodeModel::Default,
)
.expect("couldn't create target machine");
target_machine
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.write_to_file(
module,
FileType::Object,
&working_directory.join(&format!("{}.o", module.get_name().to_str().unwrap())),
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)
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.expect("couldn't write module to file");
})));
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let thread_names: Vec<String> = (0..4).map(|i| format!("module{}", i)).collect();
let threads: Vec<_> = thread_names
.iter()
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.map(|s| Box::new(ArtiqCodeGenerator::new(s.to_string(), self.time_fns)))
.collect();
py.allow_threads(|| {
let (registry, handles) = WorkerRegistry::create_workers(threads, top_level.clone(), f);
registry.add_task(task);
registry.wait_tasks_complete(handles);
});
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let mut linker_args = vec![
"-shared".to_string(),
"--eh-frame-hdr".to_string(),
"-x".to_string(),
"-o".to_string(),
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filename.to_string(),
];
if isa != Isa::Host {
linker_args.push("-T".to_string() + self.working_directory.path().join("kernel.ld").to_str().unwrap());
}
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linker_args.extend(thread_names.iter().map(|name| {
let name_o = name.to_owned() + ".o";
self.working_directory.path().join(name_o.as_str()).to_str().unwrap().to_string()
}));
if let Ok(linker_status) = Command::new("ld.lld").args(linker_args).status() {
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if !linker_status.success() {
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return Err(exceptions::PyRuntimeError::new_err(
"failed to start linker",
));
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}
} else {
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return Err(exceptions::PyRuntimeError::new_err(
"linker returned non-zero status code",
));
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}
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Ok(())
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}
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fn compile_method_to_mem(
&mut self,
obj: &PyAny,
method_name: &str,
args: Vec<&PyAny>,
py: Python,
) -> PyResult<PyObject> {
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let filename_path = self.working_directory.path().join("module.elf");
let filename = filename_path.to_str().unwrap();
self.compile_method_to_file(obj, method_name, args, filename, py)?;
Ok(PyBytes::new(py, &fs::read(filename).unwrap()).into())
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}
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}
#[pymodule]
fn nac3artiq(_py: Python, m: &PyModule) -> PyResult<()> {
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Target::initialize_all(&InitializationConfig::default());
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m.add_class::<Nac3>()?;
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Ok(())
}