def optimize():
# This is somewhat complex with many cases, pylint: disable=R0912
while True:
finished = True
ModuleRegistry.startTraversal()
while True:
current_module = ModuleRegistry.nextModule()
if current_module is None:
break
if _progress:
printLine(
"""\
Optimizing module '{module_name}', {remaining:d} more modules to go \
after that. Memory usage {memory}:""".format(
module_name = current_module.getFullName(),
remaining = ModuleRegistry.remainingCount(),
memory = Utils.getHumanReadableProcessMemoryUsage()
)
)
if current_module.isPythonShlibModule():
optimizeShlibModule(current_module)
else:
changed = optimizePythonModule(current_module)
if changed:
finished = False
# Unregister collection traces from now unused code.
for current_module in ModuleRegistry.getDoneModules():
if not current_module.isPythonShlibModule():
for function in current_module.getUnusedFunctions():
VariableRegistry.updateFromCollection(
old_collection = function.constraint_collection,
new_collection = None
)
function.constraint_collection = None
if not VariableRegistry.complete:
VariableRegistry.complete = True
finished = False
for current_module in ModuleRegistry.getDoneModules():
if not current_module.isPythonShlibModule():
optimizeVariables(current_module)
if finished:
break
def makeOptimizationPass(initial_pass):
""" Make a single pass for optimization, indication potential completion.
"""
finished = True
ModuleRegistry.startTraversal()
if _progress:
if initial_pass:
printLine("Initial optimization pass.")
else:
printLine("Next global optimization pass.")
while True:
current_module = ModuleRegistry.nextModule()
if current_module is None:
break
if _progress:
_traceProgress(current_module)
# The tag set is global, so it can react to changes without context.
# pylint: disable=W0603
global tag_set
tag_set = TagSet()
changed = optimizeModule(current_module)
if changed:
finished = False
# Unregister collection traces from now unused code, dropping the trace
# collections of functions no longer used.
for current_module in ModuleRegistry.getDoneModules():
if current_module.isCompiledPythonModule():
for function in current_module.getUnusedFunctions():
VariableRegistry.updateFromCollection(
old_collection = function.constraint_collection,
new_collection = None
)
function.constraint_collection = None
for current_module in ModuleRegistry.getDoneModules():
optimizeVariables(current_module)
return finished
def updateFromCollection(self, old_collection):
VariableRegistry.updateFromCollection(old_collection, self)
def optimize():
# This is somewhat complex with many cases, pylint: disable=R0912
# We maintain this globally to make it accessible, pylint: disable=W0603
global graph
if Options.shouldCreateGraph():
try:
from graphviz import Digraph # pylint: disable=F0401,I0021
graph = Digraph('G')
except ImportError:
warning("Cannot import graphviz module, no graphing capability.")
while True:
finished = True
ModuleRegistry.startTraversal()
while True:
current_module = ModuleRegistry.nextModule()
if current_module is None:
break
if _progress:
printLine(
"""\
Optimizing module '{module_name}', {remaining:d} more modules to go \
after that. Memory usage {memory}:""".format(
module_name = current_module.getFullName(),
remaining = ModuleRegistry.remainingCount(),
memory = MemoryUsage.getHumanReadableProcessMemoryUsage()
)
)
if current_module.isPythonShlibModule():
optimizeShlibModule(current_module)
else:
changed = optimizePythonModule(current_module)
if changed:
finished = False
# Unregister collection traces from now unused code.
for current_module in ModuleRegistry.getDoneModules():
if not current_module.isPythonShlibModule():
for function in current_module.getUnusedFunctions():
VariableRegistry.updateFromCollection(
old_collection = function.constraint_collection,
new_collection = None
)
function.constraint_collection = None
if VariableRegistry.considerCompletion():
finished = False
for current_module in ModuleRegistry.getDoneModules():
if not current_module.isPythonShlibModule():
optimizeVariables(current_module)
if finished:
break
if graph is not None:
graph.engine = "dot"
graph.graph_attr["rankdir"] = "TB"
graph.render("something.dot")
printLine(graph.source)
def updateFromCollection(self, old_collection):
VariableRegistry.updateFromCollection(old_collection, self)
def optimize():
# This is somewhat complex with many cases, pylint: disable=R0912
# We maintain this globally to make it accessible, pylint: disable=W0603
global graph
if Options.shouldCreateGraph():
try:
from graphviz import Digraph # pylint: disable=F0401,I0021
graph = Digraph('G')
except ImportError:
warning("Cannot import graphviz module, no graphing capability.")
while True:
finished = True
ModuleRegistry.startTraversal()
while True:
current_module = ModuleRegistry.nextModule()
if current_module is None:
break
if _progress:
printLine("""\
Optimizing module '{module_name}', {remaining:d} more modules to go \
after that. Memory usage {memory}:""".format(
module_name=current_module.getFullName(),
remaining=ModuleRegistry.remainingCount(),
memory=Utils.getHumanReadableProcessMemoryUsage()))
if current_module.isPythonShlibModule():
optimizeShlibModule(current_module)
else:
changed = optimizePythonModule(current_module)
if changed:
finished = False
# Unregister collection traces from now unused code.
for current_module in ModuleRegistry.getDoneModules():
if not current_module.isPythonShlibModule():
for function in current_module.getUnusedFunctions():
VariableRegistry.updateFromCollection(
old_collection=function.constraint_collection,
new_collection=None)
function.constraint_collection = None
if not VariableRegistry.complete:
VariableRegistry.complete = True
finished = False
for current_module in ModuleRegistry.getDoneModules():
if not current_module.isPythonShlibModule():
optimizeVariables(current_module)
if finished:
break
if graph is not None:
graph.engine = "dot"
graph.graph_attr["rankdir"] = "TB"
graph.render("something.dot")
printLine(graph.source)