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from rpython.jit.metainterp.history import BasicFinalDescr,\
JitCellToken, ConstInt, ConstFloat
from rpython.jit.metainterp.resoperation import rop, InputArgInt, InputArgFloat
from rpython.jit.codewriter.effectinfo import EffectInfo
from rpython.jit.tool.oparser import parse
from rpython.rtyper.lltypesystem import lltype, llmemory
from rpython.rtyper.annlowlevel import llhelper
from rpython.jit.codewriter import heaptracker, longlong
from rpython.jit.backend.detect_cpu import getcpuclass
from rpython.jit.backend.test.runner_test import Runner
import py
import sys
import platform
def boxfloat(x):
return InputArgFloat(longlong.getfloatstorage(x))
def constfloat(x):
return ConstFloat(longlong.getfloatstorage(x))
class FakeStats(object):
pass
class CallingConvTests(Runner):
Ptr = lltype.Ptr
FuncType = lltype.FuncType
def setup_class(cls):
cls.cpu = getcpuclass()(rtyper=None, stats=FakeStats())
cls.cpu.setup_once()
def _prepare_args(self, args, floats, ints):
local_floats = list(floats)
local_ints = list(ints)
expected_result = 0.0
arguments = []
for i in range(len(args)):
x = args[i]
if x[0] == 'f':
x = local_floats.pop()
t = longlong.getfloatstorage(x)
arguments.append(t)
else:
x = local_ints.pop()
arguments.append(x)
expected_result += x
return arguments, expected_result
@classmethod
def get_funcbox(cls, cpu, func_ptr):
addr = llmemory.cast_ptr_to_adr(func_ptr)
return ConstInt(heaptracker.adr2int(addr))
def test_call_aligned_with_spilled_values(self):
cpu = self.cpu
if not cpu.supports_floats:
py.test.skip('requires floats')
def func(*args):
return float(sum(args))
F = lltype.Float
I = lltype.Signed
floats = [0.7, 5.8, 0.1, 0.3, 0.9, -2.34, -3.45, -4.56]
ints = [7, 11, 23, 13, -42, 1111, 95, 1]
for case in range(256):
local_floats = list(floats)
local_ints = list(ints)
args = []
spills = []
funcargs = []
float_count = 0
int_count = 0
for i in range(8):
if case & (1<<i):
args.append('f%d' % float_count)
spills.append('force_spill(f%d)' % float_count)
float_count += 1
funcargs.append(F)
else:
args.append('i%d' % int_count)
spills.append('force_spill(i%d)' % int_count)
int_count += 1
funcargs.append(I)
arguments = ', '.join(args)
spill_ops = '\n'.join(spills)
FUNC = self.FuncType(funcargs, F)
FPTR = self.Ptr(FUNC)
func_ptr = llhelper(FPTR, func)
calldescr = cpu.calldescrof(FUNC, FUNC.ARGS, FUNC.RESULT,
EffectInfo.MOST_GENERAL)
funcbox = self.get_funcbox(cpu, func_ptr)
ops = '[%s]\n' % arguments
ops += '%s\n' % spill_ops
ops += 'f99 = call_f(ConstClass(func_ptr), %s, descr=calldescr)\n' % arguments
ops += 'i99 = same_as_i(0)\n'
ops += 'guard_true(i99) [f99, %s]\n' % arguments
ops += 'finish()\n'
loop = parse(ops, namespace=locals())
looptoken = JitCellToken()
self.cpu.compile_loop(loop.inputargs, loop.operations, looptoken)
argvals, expected_result = self._prepare_args(args, floats, ints)
deadframe = self.cpu.execute_token(looptoken, *argvals)
x = longlong.getrealfloat(cpu.get_float_value(deadframe, 0))
assert abs(x - expected_result) < 0.0001
def test_call_aligned_with_imm_values(self):
cpu = self.cpu
if not cpu.supports_floats:
py.test.skip('requires floats')
def func(*args):
return float(sum(args))
F = lltype.Float
I = lltype.Signed
floats = [0.7, 5.8, 0.1, 0.3, 0.9, -2.34, -3.45, -4.56]
ints = [7, 11, 23, 13, -42, 1111, 95, 1]
for case in range(256):
result = 0.0
args = []
argslist = []
local_floats = list(floats)
local_ints = list(ints)
for i in range(8):
if case & (1<<i):
args.append(F)
arg = local_floats.pop()
result += arg
argslist.append(constfloat(arg))
else:
args.append(I)
arg = local_ints.pop()
result += arg
argslist.append(ConstInt(arg))
FUNC = self.FuncType(args, F)
FPTR = self.Ptr(FUNC)
func_ptr = llhelper(FPTR, func)
calldescr = cpu.calldescrof(FUNC, FUNC.ARGS, FUNC.RESULT,
EffectInfo.MOST_GENERAL)
funcbox = self.get_funcbox(cpu, func_ptr)
res = self.execute_operation(rop.CALL_F,
[funcbox] + argslist,
'float', descr=calldescr)
res = longlong.getrealfloat(res)
assert abs(res - result) < 0.0001
def test_call_aligned_with_args_on_the_stack(self):
cpu = self.cpu
if not cpu.supports_floats:
py.test.skip('requires floats')
def func(*args):
return float(sum(args))
F = lltype.Float
I = lltype.Signed
floats = [0.7, 5.8, 0.1, 0.3, 0.9, -2.34, -3.45, -4.56]
ints = [7, 11, 23, 13, -42, 1111, 95, 1]
for case in range(256):
result = 0.0
args = []
argslist = []
local_floats = list(floats)
local_ints = list(ints)
for i in range(8):
if case & (1<<i):
args.append(F)
arg = local_floats.pop()
result += arg
argslist.append(boxfloat(arg))
else:
args.append(I)
arg = local_ints.pop()
result += arg
argslist.append(InputArgInt(arg))
FUNC = self.FuncType(args, F)
FPTR = self.Ptr(FUNC)
func_ptr = llhelper(FPTR, func)
calldescr = cpu.calldescrof(FUNC, FUNC.ARGS, FUNC.RESULT,
EffectInfo.MOST_GENERAL)
funcbox = self.get_funcbox(cpu, func_ptr)
res = self.execute_operation(rop.CALL_F,
[funcbox] + argslist,
'float', descr=calldescr)
res = longlong.getrealfloat(res)
assert abs(res - result) < 0.0001
def test_call_alignment_call_assembler(self):
cpu = self.cpu
if not cpu.supports_floats:
py.test.skip('requires floats')
fdescr3 = BasicFinalDescr(3)
fdescr4 = BasicFinalDescr(4)
def assembler_helper(failindex, virtualizable):
assert 0, 'should not be called, but was with failindex (%d)' % failindex
return 13
FUNCPTR = lltype.Ptr(lltype.FuncType([lltype.Signed, llmemory.GCREF],
lltype.Signed))
class FakeJitDriverSD:
index_of_virtualizable = -1
_assembler_helper_ptr = llhelper(FUNCPTR, assembler_helper)
assembler_helper_adr = llmemory.cast_ptr_to_adr(
_assembler_helper_ptr)
floats = [0.7, 5.8, 0.1, 0.3, 0.9, -2.34, -3.45, -4.56]
ints = [7, 11, 23, 42, -42, 1111, 95, 1]
for case in range(256):
float_count = 0
int_count = 0
args = []
called_ops = ''
total_index = -1
for i in range(8):
if case & (1<<i):
args.append('f%d' % float_count)
else:
args.append('i%d' % int_count)
called_ops += 'f%d = cast_int_to_float(i%d)\n' % (
float_count, int_count)
int_count += 1
if total_index == -1:
total_index = float_count
float_count += 1
else:
called_ops += 'f%d = float_add(f%d, f%d)\n' % (
float_count + 1, total_index, float_count)
total_index = float_count + 1
float_count += 2
arguments = ', '.join(args)
called_ops = '[%s]\n' % arguments + called_ops
called_ops += 'finish(f%d, descr=fdescr3)\n' % total_index
# compile called loop
called_loop = parse(called_ops, namespace=locals())
called_looptoken = JitCellToken()
called_looptoken.outermost_jitdriver_sd = FakeJitDriverSD()
done_descr = called_loop.operations[-1].getdescr()
self.cpu.compile_loop(called_loop.inputargs, called_loop.operations, called_looptoken)
argvals, expected_result = self._prepare_args(args, floats, ints)
deadframe = cpu.execute_token(called_looptoken, *argvals)
assert cpu.get_latest_descr(deadframe) == fdescr3
t = longlong.getrealfloat(cpu.get_float_value(deadframe, 0))
assert abs(t - expected_result) < 0.0001
ARGS = []
RES = lltype.Float
for x in args:
if x[0] == 'f':
ARGS.append(lltype.Float)
else:
ARGS.append(lltype.Signed)
FakeJitDriverSD.portal_calldescr = self.cpu.calldescrof(
lltype.Ptr(lltype.FuncType(ARGS, RES)), ARGS, RES,
EffectInfo.MOST_GENERAL)
ops = '''
[%s]
f99 = call_assembler_f(%s, descr=called_looptoken)
guard_not_forced()[]
finish(f99, descr=fdescr4)
''' % (arguments, arguments)
loop = parse(ops, namespace=locals())
# we want to take the fast path
self.cpu.done_with_this_frame_descr_float = done_descr
try:
othertoken = JitCellToken()
self.cpu.compile_loop(loop.inputargs, loop.operations, othertoken)
# prepare call to called_loop
argvals, _ = self._prepare_args(args, floats, ints)
deadframe = cpu.execute_token(othertoken, *argvals)
x = longlong.getrealfloat(
cpu.get_float_value(deadframe, 0))
assert cpu.get_latest_descr(deadframe) == fdescr4
assert abs(x - expected_result) < 0.0001
finally:
del self.cpu.done_with_this_frame_descr_float
def test_call_with_imm_values_bug_constint0(self):
cpu = self.cpu
I = lltype.Signed
ints = [7, 11, 23, 13, -42, 0, 0, 9]
def func(*args):
for i in range(len(args)):
assert args[i] == ints[i]
return sum(args)
result = sum(ints)
args = [I] * len(ints)
argslist = [ConstInt(i) for i in ints]
FUNC = self.FuncType(args, I)
FPTR = self.Ptr(FUNC)
func_ptr = llhelper(FPTR, func)
calldescr = cpu.calldescrof(FUNC, FUNC.ARGS, FUNC.RESULT, EffectInfo.MOST_GENERAL)
funcbox = self.get_funcbox(cpu, func_ptr)
res = self.execute_operation(rop.CALL_I,
[funcbox] + argslist,
'int', descr=calldescr)
assert res == result
def test_call_with_singlefloats(self):
cpu = self.cpu
if not cpu.supports_floats or not cpu.supports_singlefloats:
py.test.skip('requires floats and singlefloats')
import random
from rpython.rlib.rarithmetic import r_singlefloat
def func(*args):
res = 0.0
for i, x in enumerate(args):
res += (i + 1.1) * float(x)
return res
F = lltype.Float
S = lltype.SingleFloat
I = lltype.Signed
floats = [random.random() - 0.5 for i in range(20)]
singlefloats = [r_singlefloat(random.random() - 0.5) for i in range(20)]
ints = [random.randrange(-99, 99) for i in range(20)]
for repeat in range(100):
args = []
argvalues = []
argslist = []
local_floats = list(floats)
local_singlefloats = list(singlefloats)
local_ints = list(ints)
for i in range(random.randrange(4, 20)):
case = random.randrange(0, 6)
if case & 1: boxme = InputArgInt
else: boxme = ConstInt
if case < 2:
args.append(F)
arg = arg1 = local_floats.pop()
if case & 1: boxme = boxfloat
else: boxme = constfloat
elif case < 4:
args.append(S)
arg = local_singlefloats.pop()
arg1 = longlong.singlefloat2int(arg)
else:
args.append(I)
arg = arg1 = local_ints.pop()
argslist.append(boxme(arg1))
argvalues.append(arg)
FUNC = self.FuncType(args, F)
FPTR = self.Ptr(FUNC)
func_ptr = llhelper(FPTR, func)
calldescr = cpu.calldescrof(FUNC, FUNC.ARGS, FUNC.RESULT,
EffectInfo.MOST_GENERAL)
funcbox = self.get_funcbox(cpu, func_ptr)
res = self.execute_operation(rop.CALL_F,
[funcbox] + argslist,
'float', descr=calldescr)
expected = func(*argvalues)
res = longlong.getrealfloat(res)
assert abs(res - expected) < 0.0001
def make_function_returning_stack_pointer(self):
raise NotImplementedError
def get_alignment_requirements(self):
raise NotImplementedError
def test_call_aligned_explicit_check(self):
if (not platform.machine().startswith('arm') and
sys.maxint == 2 ** 31 - 1): # XXX is still necessary on x86?
py.test.skip("libffi on 32bit is broken")
cpu = self.cpu
if not cpu.supports_floats:
py.test.skip('requires floats')
func_addr = self.make_function_returning_stack_pointer()
F = lltype.Float
I = lltype.Signed
floats = [0.7, 5.8, 0.1, 0.3, 0.9, -2.34, -3.45, -4.56]
ints = [7, 11, 23, 13, -42, 1111, 95, 1]
for case in range(256):
args = []
funcargs = []
float_count = 0
int_count = 0
for i in range(8):
if case & (1<<i):
args.append('f%d' % float_count)
float_count += 1
funcargs.append(F)
else:
args.append('i%d' % int_count)
int_count += 1
funcargs.append(I)
arguments = ', '.join(args)
FUNC = self.FuncType(funcargs, I)
calldescr = cpu.calldescrof(FUNC, FUNC.ARGS, FUNC.RESULT,
EffectInfo.MOST_GENERAL)
ops = '[%s]\n' % arguments
ops += 'i99 = call_i(%d, %s, descr=calldescr)\n' % (func_addr,
arguments)
ops += 'finish(i99)\n'
loop = parse(ops, namespace=locals())
looptoken = JitCellToken()
self.cpu.compile_loop(loop.inputargs, loop.operations, looptoken)
argvals, expected_result = self._prepare_args(args, floats, ints)
deadframe = self.cpu.execute_token(looptoken, *argvals)
x = cpu.get_int_value(deadframe, 0)
align_req = self.get_alignment_requirements()
assert x % align_req == 0
|
