def check(self, fn, signature, args, expected_result, must_be_removed=True,
inline=None):
remover = self.MallocRemover()
t = TranslationContext()
t.buildannotator().build_types(fn, signature)
t.buildrtyper(type_system=self.type_system).specialize()
graph = graphof(t, fn)
if inline is not None:
from pypy.translator.backendopt.inline import auto_inline_graphs
auto_inline_graphs(t, t.graphs, inline)
if option.view:
t.view()
# to detect missing keepalives and broken intermediate graphs,
# we do the loop ourselves instead of calling remove_simple_mallocs()
while True:
progress = remover.remove_mallocs_once(graph)
simplify.transform_dead_op_vars_in_blocks(list(graph.iterblocks()))
if progress and option.view:
t.view()
if expected_result is not Ellipsis:
interp = LLInterpreter(t.rtyper)
res = interp.eval_graph(graph, args)
assert res == expected_result
if not progress:
break
if must_be_removed:
self.check_malloc_removed(graph)
return graph
def inline_malloc_removal_phase(config, translator, graphs, inline_threshold,
inline_heuristic,
call_count_pred=None):
type_system = translator.rtyper.type_system.name
# inline functions in each other
if inline_threshold:
log.inlining("phase with threshold factor: %s" % inline_threshold)
log.inlining("heuristic: %s.%s" % (inline_heuristic.__module__,
inline_heuristic.__name__))
inline.auto_inline_graphs(translator, graphs, inline_threshold,
heuristic=inline_heuristic,
call_count_pred=call_count_pred)
if config.print_statistics:
print "after inlining:"
print_statistics(translator.graphs[0], translator)
# vaporize mallocs
if config.mallocs:
log.malloc("starting malloc removal")
remove_mallocs(translator, graphs, type_system)
if config.print_statistics:
print "after malloc removal:"
print_statistics(translator.graphs[0], translator)
def test_fold_exitswitch_along_one_path():
def g(n):
if n == 42:
return 5
else:
return n + 1
def fn(n):
if g(n) == 5:
return 100
else:
return 0
graph, t = get_graph(fn, [int])
from pypy.translator.backendopt import removenoops, inline
inline.auto_inline_graphs(t, t.graphs, threshold=999)
constant_fold_graph(graph)
removenoops.remove_same_as(graph)
if conftest.option.view:
t.view()
# check that the graph starts with a condition (which should be 'n==42')
# and that if this condition is true, it goes directly to 'return 100'.
assert len(graph.startblock.exits) == 2
assert graph.startblock.exits[1].exitcase == True
assert graph.startblock.exits[1].target is graph.returnblock
check_graph(graph, [10], 0, t)
check_graph(graph, [42], 100, t)
def test_coalesce_exitswitchs():
def g(n):
return n > 5 and n < 20
def fn(n):
if g(n):
return 100
else:
return 0
graph, t = get_graph(fn, [int])
from pypy.translator.backendopt import removenoops, inline
inline.auto_inline_graphs(t, t.graphs, threshold=999)
removenoops.remove_same_as(graph)
constant_fold_graph(graph)
if conftest.option.view:
t.view()
# check that the graph starts with a condition (which should be 'n > 5')
# and that if this condition is false, it goes directly to 'return 0'.
assert summary(graph) == {'int_gt': 1, 'int_lt': 1}
assert len(graph.startblock.exits) == 2
assert graph.startblock.exits[0].exitcase == False
assert graph.startblock.exits[0].target is graph.returnblock
check_graph(graph, [2], 0, t)
check_graph(graph, [10], 100, t)
check_graph(graph, [42], 0, t)
def test_coalesce_exitswitchs():
def g(n):
return n > 5 and n < 20
def fn(n):
if g(n):
return 100
else:
return 0
graph, t = get_graph(fn, [int])
from pypy.translator.backendopt import removenoops, inline
inline.auto_inline_graphs(t, t.graphs, threshold=999)
removenoops.remove_same_as(graph)
constant_fold_graph(graph)
if conftest.option.view:
t.view()
# check that the graph starts with a condition (which should be 'n > 5')
# and that if this condition is false, it goes directly to 'return 0'.
assert summary(graph) == {'int_gt': 1, 'int_lt': 1}
assert len(graph.startblock.exits) == 2
assert graph.startblock.exits[0].exitcase == False
assert graph.startblock.exits[0].target is graph.returnblock
check_graph(graph, [2], 0, t)
check_graph(graph, [10], 100, t)
check_graph(graph, [42], 0, t)
def inline_malloc_removal_phase(config,
translator,
graphs,
inline_threshold,
inline_heuristic,
call_count_pred=None):
type_system = translator.rtyper.type_system.name
# inline functions in each other
if inline_threshold:
log.inlining("phase with threshold factor: %s" % inline_threshold)
log.inlining("heuristic: %s.%s" %
(inline_heuristic.__module__, inline_heuristic.__name__))
inline.auto_inline_graphs(translator,
graphs,
inline_threshold,
heuristic=inline_heuristic,
call_count_pred=call_count_pred)
if config.print_statistics:
print "after inlining:"
print_statistics(translator.graphs[0], translator)
# vaporize mallocs
if config.mallocs:
log.malloc("starting malloc removal")
remove_mallocs(translator, graphs, type_system)
if config.print_statistics:
print "after malloc removal:"
print_statistics(translator.graphs[0], translator)
def test_fold_exitswitch_along_one_path():
def g(n):
if n == 42:
return 5
else:
return n+1
def fn(n):
if g(n) == 5:
return 100
else:
return 0
graph, t = get_graph(fn, [int])
from pypy.translator.backendopt import removenoops, inline
inline.auto_inline_graphs(t, t.graphs, threshold=999)
constant_fold_graph(graph)
removenoops.remove_same_as(graph)
if conftest.option.view:
t.view()
# check that the graph starts with a condition (which should be 'n==42')
# and that if this condition is true, it goes directly to 'return 100'.
assert len(graph.startblock.exits) == 2
assert graph.startblock.exits[1].exitcase == True
assert graph.startblock.exits[1].target is graph.returnblock
check_graph(graph, [10], 0, t)
check_graph(graph, [42], 100, t)
def check(self,
fn,
signature,
args,
expected_result,
must_be_removed=True,
inline=None):
remover = self.MallocRemover()
t = TranslationContext()
t.buildannotator().build_types(fn, signature)
t.buildrtyper(type_system=self.type_system).specialize()
graph = graphof(t, fn)
if inline is not None:
from pypy.translator.backendopt.inline import auto_inline_graphs
auto_inline_graphs(t, t.graphs, inline)
if option.view:
t.view()
# to detect broken intermediate graphs,
# we do the loop ourselves instead of calling remove_simple_mallocs()
while True:
progress = remover.remove_mallocs_once(graph)
simplify.transform_dead_op_vars_in_blocks(list(graph.iterblocks()),
[graph])
if progress and option.view:
t.view()
if expected_result is not Ellipsis:
interp = LLInterpreter(t.rtyper)
res = interp.eval_graph(graph, args)
assert res == expected_result
if not progress:
break
if must_be_removed:
self.check_malloc_removed(graph)
return graph
def preparation(translator, graphs, threshold=SMALL_THRESHOLD,
heuristic=inline.inlining_heuristic):
count = 0
inline.auto_inline_graphs(translator, graphs, threshold,
heuristic=heuristic)
count += remove_mallocs(translator, graphs)
log.inlineandremove("preparation removed %s mallocs in total" % count)
return count
def preparation(translator,
graphs,
threshold=SMALL_THRESHOLD,
heuristic=inline.inlining_heuristic):
count = 0
inline.auto_inline_graphs(translator,
graphs,
threshold,
heuristic=heuristic)
count += remove_mallocs(translator, graphs)
log.inlineandremove("preparation removed %s mallocs in total" % count)
return count
def prejit_optimizations_minimal_inline(self, policy, graphs):
from pypy.translator.backendopt.inline import auto_inline_graphs
auto_inline_graphs(self.translator, graphs, 0.01)
def prejit_optimizations_minimal_inline(self, policy, graphs):
from pypy.translator.backendopt.inline import auto_inline_graphs
auto_inline_graphs(self.translator, graphs, 0.01)
