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from rpython.translator.simplify import get_graph
from hashlib import md5
def get_statistics(graph, translator, save_per_graph_details=None, ignore_stack_checks=False):
seen_graphs = {}
stack = [graph]
num_graphs = 0
num_blocks = 0
num_ops = 0
num_mallocs = 0
per_graph = {}
while stack:
graph = stack.pop()
if graph in seen_graphs:
continue
seen_graphs[graph] = True
num_graphs += 1
old_num_blocks = num_blocks
old_num_ops = num_ops
old_num_mallocs = num_mallocs
for block in graph.iterblocks():
num_blocks += 1
for op in block.operations:
if op.opname == "direct_call":
called_graph = get_graph(op.args[0], translator)
if called_graph is not None and ignore_stack_checks:
if called_graph.name.startswith('ll_stack_check'):
continue
if called_graph is not None:
stack.append(called_graph)
elif op.opname == "indirect_call":
called_graphs = op.args[-1].value
if called_graphs is not None:
stack.extend(called_graphs)
elif op.opname.startswith("malloc"):
num_mallocs += 1
num_ops += 1
per_graph[graph] = (num_blocks-old_num_blocks, num_ops-old_num_ops, num_mallocs-old_num_mallocs)
if save_per_graph_details:
details = []
for graph, (nblocks, nops, nmallocs) in per_graph.iteritems():
try:
code = graph.func.func_code.co_code
except AttributeError:
code = "None"
hash = md5(code).hexdigest()
details.append((hash, graph.name, nblocks, nops, nmallocs))
details.sort()
f = open(save_per_graph_details, "w")
try:
for hash, name, nblocks, nops, nmallocs in details:
print >>f, hash, name, nblocks, nops, nmallocs
finally:
f.close()
return num_graphs, num_blocks, num_ops, num_mallocs
def print_statistics(graph, translator, save_per_graph_details=None, ignore_stack_checks=False):
num_graphs, num_blocks, num_ops, num_mallocs = get_statistics(
graph, translator, save_per_graph_details,
ignore_stack_checks=ignore_stack_checks)
print ("Statistics:\nnumber of graphs %s\n"
"number of blocks %s\n"
"number of operations %s\n"
"number of mallocs %s\n"
) % (num_graphs, num_blocks, num_ops, num_mallocs)
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