pypy/module/pypyjit/test_pypy_c/test_math.py::TestMath::()::test_pow_two

self = <pypy.module.pypyjit.test_pypy_c.test_math.TestMath object at 0x000001bd1d4a92f0>

    def test_pow_two(self):
        def main(n):
            s = 0.123
            while n > 0:
                s -= s ** 2   # ID: pow
                n -= 1
            return s
        log = self.run(main, [500])
        assert abs(log.result - main(500)) < 1e-9
        loop, = log.loops_by_filename(self.filepath)
>       assert loop.match_by_id("pow", """
                guard_not_invalidated(descr=...)
                f38 = float_mul(f30, f30)
                f39 = float_sub(f30, f38)
            """)

pypy\module\pypyjit\test_pypy_c\test_math.py:104: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
pypy\module\pypyjit\test_pypy_c\model.py:182: in match_by_id
    return matcher.match(expected_src, ignore_ops=ignore_ops)
pypy\module\pypyjit\test_pypy_c\model.py:524: in match
    self.match_loop(expected_ops, ignore_ops)
pypy\module\pypyjit\test_pypy_c\model.py:500: in match_loop
    self.match_op(op, exp_op)
pypy\module\pypyjit\test_pypy_c\model.py:409: in match_op
    self._assert(op.name == exp_opname, "operation mismatch")
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

self = <pypy.module.pypyjit.test_pypy_c.model.OpMatcher object at 0x000001bd1e3b5440>
cond = False, message = 'operation mismatch'

    def _assert(self, cond, message):
        if not cond:
>           raise InvalidMatch(message, frame=sys._getframe(1))
E           InvalidMatch: operation mismatch

pypy\module\pypyjit\test_pypy_c\model.py:402: InvalidMatch
---------- Captured stdout call ----------
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
Loops don't match
=================
loop id = 'pow'
('operation mismatch',)
<could not determine information>

Ignore ops: []
Got:

	===== HERE =====
    f35 = float_mul(f26, f26)
    f36 = float_sub(f26, f35)

Expected:
    
    guard_not_invalidated(descr=...)
    f38 = float_mul(f30, f30)
    f39 = float_sub(f30, f38)

builder: pypy-c-jit-win-x86-64 build #2538+

test: pypy/module/pypyjit/test_pypy_c/test_math.py::TestMath::()::test_pow_two