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""" Test that the math module still behaves even when
compiled to C with SSE2 enabled.
"""
import py, math
from rpython.translator.c.test.test_genc import compile
from rpython.jit.backend.x86.support import ensure_sse2_floats
from rpython.rlib import rfloat
from rpython.rlib.unroll import unrolling_iterable
from rpython.rlib.debug import debug_print
from rpython.rtyper.lltypesystem.module.test.math_cases import (MathTests,
get_tester)
def get_test_case((fnname, args, expected)):
try:
fn = getattr(math, fnname)
except AttributeError:
fn = getattr(rfloat, fnname)
expect_valueerror = (expected == ValueError)
expect_overflowerror = (expected == OverflowError)
check = get_tester(expected)
unroll_args = unrolling_iterable(args)
#
def testfn():
debug_print('calling', fnname, 'with arguments:')
for arg in unroll_args:
debug_print('\t', arg)
try:
got = fn(*args)
except ValueError:
if expect_valueerror:
return True
else:
debug_print('unexpected ValueError!')
return False
except OverflowError:
if expect_overflowerror:
return True
else:
debug_print('unexpected OverflowError!')
return False
else:
if check(got):
return True
else:
debug_print('unexpected result:', got)
return False
#
testfn.__name__ = 'test_' + fnname
return testfn
testfnlist = [get_test_case(testcase)
for testcase in MathTests.TESTCASES]
def fn():
ensure_sse2_floats()
for i in range(len(testfnlist)):
testfn = testfnlist[i]
if not testfn():
return i
return -42 # ok
def test_math():
# note: we use lldebug because in the normal optimizing mode, some
# calls may be completely inlined and constant-folded by the
# compiler (with -flto), e.g. atanh(0.3). They give then slightly
# different result than if they were executed at runtime.
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79973
f = compile(fn, [], lldebug=True)
res = f()
if res >= 0:
py.test.fail(repr(MathTests.TESTCASES[res]))
else:
assert res == -42
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