if b2.is_constant() and b2.getint() == 1:
self.make_equal_to(op, arg0)
return
elif b1.is_constant() and b1.getint() == 0:
self.make_constant_int(op, 0)
return
if b1.known_ge(IntBound(0, 0)) and b2.is_constant():
val = b2.getint()
if val & (val - 1) == 0 and val > 0: # val == 2**shift
op = self.replace_op_with(op, rop.INT_RSHIFT,
args = [op.getarg(0), ConstInt(highest_bit(val))])
self.emit_operation(op)
def optimize_CAST_PTR_TO_INT(self, op):
self.optimizer.pure_reverse(op)
self.emit_operation(op)
def optimize_CAST_INT_TO_PTR(self, op):
self.optimizer.pure_reverse(op)
self.emit_operation(op)
def optimize_SAME_AS_I(self, op):
self.make_equal_to(op, op.getarg(0))
optimize_SAME_AS_R = optimize_SAME_AS_I
optimize_SAME_AS_F = optimize_SAME_AS_I
dispatch_opt = make_dispatcher_method(OptRewrite, 'optimize_',
default=OptRewrite.emit_operation)
optimize_guards = _findall(OptRewrite, 'optimize_', 'GUARD')
return self.emit(op)
def optimize_CAST_INT_TO_PTR(self, op):
self.optimizer.pure_from_args(rop.CAST_PTR_TO_INT, [op], op.getarg(0))
return self.emit(op)
def optimize_SAME_AS_I(self, op):
self.make_equal_to(op, op.getarg(0))
optimize_SAME_AS_R = optimize_SAME_AS_I
optimize_SAME_AS_F = optimize_SAME_AS_I
def serialize_optrewrite(self, available_boxes):
res = []
for i, box in self.loop_invariant_results.iteritems():
box = get_box_replacement(box)
if box in available_boxes:
res.append((i, box))
return res
def deserialize_optrewrite(self, tups):
for i, box in tups:
self.loop_invariant_results[i] = box
dispatch_opt = make_dispatcher_method(OptRewrite,
'optimize_',
default=OptRewrite.emit)
optimize_guards = _findall(OptRewrite, 'optimize_', 'GUARD')
dispatch_postprocess = make_dispatcher_method(OptRewrite, 'postprocess_')
return True
else:
from rpython.jit.metainterp.optimizeopt import intdiv
known_nonneg = b1.known_ge(IntBound(0, 0))
operations = intdiv.modulo_operations(arg1, val, known_nonneg)
newop = None
for newop in operations:
self.optimizer.send_extra_operation(newop)
self.make_equal_to(op, newop)
return True
def optimize_CAST_PTR_TO_INT(self, op):
self.optimizer.pure_from_args(rop.CAST_INT_TO_PTR, [op], op.getarg(0))
return self.emit(op)
def optimize_CAST_INT_TO_PTR(self, op):
self.optimizer.pure_from_args(rop.CAST_PTR_TO_INT, [op], op.getarg(0))
return self.emit(op)
def optimize_SAME_AS_I(self, op):
self.make_equal_to(op, op.getarg(0))
optimize_SAME_AS_R = optimize_SAME_AS_I
optimize_SAME_AS_F = optimize_SAME_AS_I
dispatch_opt = make_dispatcher_method(OptRewrite, "optimize_", default=OptRewrite.emit)
optimize_guards = _findall(OptRewrite, "optimize_", "GUARD")
dispatch_postprocess = make_dispatcher_method(OptRewrite, "postprocess_")