artiq/artiq/compiler/module.py

102 lines
4.9 KiB
Python

"""
The :class:`Module` class encapsulates a single Python module,
which corresponds to a single ARTIQ translation unit (one LLVM
bitcode file and one object file, unless LTO is used).
A :class:`Module` can be created from a typed AST.
The :class:`Source` class parses a single source file or
string and infers types for it using a trivial :module:`prelude`.
"""
import os
from pythonparser import source, diagnostic, parse_buffer
from . import prelude, types, transforms, analyses, validators, embedding
class Source:
def __init__(self, source_buffer, engine=None):
if engine is None:
self.engine = diagnostic.Engine(all_errors_are_fatal=True)
else:
self.engine = engine
self.embedding_map = embedding.EmbeddingMap()
self.name, _ = os.path.splitext(os.path.basename(source_buffer.name))
asttyped_rewriter = transforms.ASTTypedRewriter(engine=engine,
prelude=prelude.globals())
inferencer = transforms.Inferencer(engine=engine)
self.parsetree, self.comments = parse_buffer(source_buffer, engine=engine)
self.typedtree = asttyped_rewriter.visit(self.parsetree)
self.globals = asttyped_rewriter.globals
inferencer.visit(self.typedtree)
@classmethod
def from_string(cls, source_string, name="input.py", first_line=1, engine=None):
return cls(source.Buffer(source_string + "\n", name, first_line), engine=engine)
@classmethod
def from_filename(cls, filename, engine=None):
with open(filename) as f:
return cls(source.Buffer(f.read(), filename, 1), engine=engine)
class Module:
def __init__(self, src, ref_period=1e-6, attribute_writeback=True, remarks=False):
self.attribute_writeback = attribute_writeback
self.engine = src.engine
self.embedding_map = src.embedding_map
self.name = src.name
self.globals = src.globals
int_monomorphizer = transforms.IntMonomorphizer(engine=self.engine)
cast_monomorphizer = transforms.CastMonomorphizer(engine=self.engine)
inferencer = transforms.Inferencer(engine=self.engine)
monomorphism_validator = validators.MonomorphismValidator(engine=self.engine)
escape_validator = validators.EscapeValidator(engine=self.engine)
iodelay_estimator = transforms.IODelayEstimator(engine=self.engine,
ref_period=ref_period)
constness_validator = validators.ConstnessValidator(engine=self.engine)
artiq_ir_generator = transforms.ARTIQIRGenerator(engine=self.engine,
module_name=src.name,
ref_period=ref_period,
embedding_map=self.embedding_map)
dead_code_eliminator = transforms.DeadCodeEliminator(engine=self.engine)
local_access_validator = validators.LocalAccessValidator(engine=self.engine)
local_demoter = transforms.LocalDemoter()
constant_hoister = transforms.ConstantHoister()
devirtualization = analyses.Devirtualization()
interleaver = transforms.Interleaver(engine=self.engine)
invariant_detection = analyses.InvariantDetection(engine=self.engine)
int_monomorphizer.visit(src.typedtree)
cast_monomorphizer.visit(src.typedtree)
inferencer.visit(src.typedtree)
monomorphism_validator.visit(src.typedtree)
escape_validator.visit(src.typedtree)
iodelay_estimator.visit_fixpoint(src.typedtree)
constness_validator.visit(src.typedtree)
devirtualization.visit(src.typedtree)
self.artiq_ir = artiq_ir_generator.visit(src.typedtree)
artiq_ir_generator.annotate_calls(devirtualization)
dead_code_eliminator.process(self.artiq_ir)
interleaver.process(self.artiq_ir)
local_access_validator.process(self.artiq_ir)
local_demoter.process(self.artiq_ir)
constant_hoister.process(self.artiq_ir)
if remarks:
invariant_detection.process(self.artiq_ir)
# for subkernels: main kernel inferencer output, to be passed to further compilations
self.subkernel_arg_types = inferencer.subkernel_arg_types
def build_llvm_ir(self, target):
"""Compile the module to LLVM IR for the specified target."""
llvm_ir_generator = transforms.LLVMIRGenerator(
engine=self.engine, module_name=self.name, target=target,
embedding_map=self.embedding_map)
return llvm_ir_generator.process(self.artiq_ir,
attribute_writeback=self.attribute_writeback)
def __repr__(self):
printer = types.TypePrinter()
globals = ["%s: %s" % (var, printer.name(self.globals[var])) for var in self.globals]
return "<artiq.compiler.Module %s {\n %s\n}>" % (repr(self.name), ",\n ".join(globals))