test_rpython.py 59.8 KB
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from rpython.rtyper.lltypesystem import rffi, lltype
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from rpython.rlib.rmu import zebu as rmu
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from rpython.translator.platform import platform
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from util import fncptr_from_rpy_func, fncptr_from_py_script, may_spawn_proc
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import ctypes, py, stat, os
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import pytest
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# -------------------
# helper functions
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def rand_list_of(n):
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    # 32 extend to 64-bit integers (to avoid overflow in summation
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    from random import randrange, getstate
    init_state = getstate()
    return [rffi.r_longlong(randrange(-(1 << 31), (1 << 31) - 1)) for _ in range(n)], init_state
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# --------------------------
# tests
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@may_spawn_proc
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def test_add():
    def add(a, b):
        return a + b

    fn, _ = fncptr_from_rpy_func(add, [rffi.LONGLONG, rffi.LONGLONG], rffi.LONGLONG)

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    assert fn(1, 2) == 3
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@may_spawn_proc
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def test_vec3prod():
    def prod(v1, v2):
        a = v1[0] * v2[0]
        b = v1[1] * v2[1]
        c = v1[2] * v2[2]
        return a + b + c

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    fnc, (db, bdlgen) = fncptr_from_rpy_func(prod, [rffi.CArrayPtr(rffi.LONGLONG), rffi.CArrayPtr(rffi.LONGLONG)], rffi.LONGLONG)
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    bdlgen.mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
    with lltype.scoped_alloc(rffi.CArray(rffi.LONGLONG), 3) as vec1:
        vec1[0] = 1
        vec1[1] = 2
        vec1[2] = 3
        with lltype.scoped_alloc(rffi.CArray(rffi.LONGLONG), 3) as vec2:
            vec2[0] = 4
            vec2[1] = 5
            vec2[2] = 6
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            assert fnc(vec1, vec2) == 32
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@may_spawn_proc
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def test_find_min():
    def find_min(xs, sz):
        m = xs[0]
        for i in range(1, sz):
            x = xs[i]
            if x < m:
                m = x
        return m

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    fnc, (db, bdlgen) = fncptr_from_rpy_func(find_min, [rffi.CArrayPtr(rffi.LONGLONG), rffi.INTPTR_T], rffi.LONGLONG)
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    bdlgen.mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
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    with lltype.scoped_alloc(rffi.CArray(rffi.LONGLONG), 5) as arr:
        lst = [23, 100, 0, 78, -5]
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        for i, k in enumerate(lst):
            arr[i] = k
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        fnc(arr, 5) == -5
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@may_spawn_proc
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def test_arraysum():
    from rpython.rlib.jit import JitDriver
    d = JitDriver(greens=[], reds='auto')
    def arraysum(arr, sz):
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        sum = rffi.r_longlong(0)
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        for i in range(sz):
            d.jit_merge_point()
            sum += arr[i]
        return sum

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    fnc, (db, bdlgen) = fncptr_from_rpy_func(arraysum, [rffi.CArrayPtr(rffi.LONGLONG), rffi.SIZE_T], rffi.LONGLONG)
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    bdlgen.mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
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    n = 100
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    lst, _ = rand_list_of(n)
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    with lltype.scoped_alloc(rffi.CArray(rffi.LONGLONG), n) as arr:
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        for i, k in enumerate(lst):
            arr[i] = k
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        assert fnc(arr, rffi.cast(rffi.SIZE_T, n)) == arraysum(arr, rffi.cast(rffi.SIZE_T, n))
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@may_spawn_proc
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def test_quicksort():
    # algorithm taken from Wikipedia
    def swap(arr, i, j):
        t = arr[i]
        arr[i] = arr[j]
        arr[j] = t

    def partition(arr, idx_low, idx_high):
        pivot = arr[idx_high]
        i = idx_low
        for j in range(idx_low, idx_high):
            if arr[j] < pivot:
                swap(arr, i, j)
                i += 1
        swap(arr, i, idx_high)
        return i

    def quicksort(arr, start, end):
        if start < end:
            p = partition(arr, start, end)
            quicksort(arr, start, p - 1)
            quicksort(arr, p + 1, end)
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    fnc, (db, bdlgen) = fncptr_from_rpy_func(quicksort, [rffi.CArrayPtr(rffi.LONGLONG), lltype.Signed, lltype.Signed], lltype.Void)
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    bdlgen.mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
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    # fnc = quicksort
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    n = 100
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    from random import setstate
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    init_state = (3, (
    2147483648L, 3430835514L, 2928424416L, 3147699060L, 2823572732L, 2905216632L, 1887281517L, 14272356L, 1356039141L,
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    139268705L, 3784719953L, 2212355490L, 3452491289L, 1232629882L, 1791207424L, 2898278956L, 1147783320L, 1824413680L,
    1993303973L, 2568444883L, 4228847642L, 4163974668L, 385627078L, 3663560714L, 320542554L, 1565882322L, 3416481154L,
    4219229298L, 315071254L, 778331393L, 3961037651L, 2951403614L, 3355970261L, 102946340L, 2509883952L, 215897963L,
    3361072826L, 689991350L, 3348092598L, 1763608447L, 2140226443L, 3813151178L, 2619956936L, 51244592L, 2130725065L,
    3867113849L, 1980820881L, 2600246771L, 3207535572L, 257556968L, 2223367443L, 3706150033L, 1711074250L, 4252385224L,
    3197142331L, 4139558716L, 748471849L, 2281163369L, 2596250092L, 2804492653L, 484240110L, 3726117536L, 2483815933L,
    2173995598L, 3765136999L, 3178931194L, 1237068319L, 3427263384L, 3958412830L, 2268556676L, 360704423L, 4113430429L,
    3758882140L, 3743971788L, 1685454939L, 488386L, 3511218911L, 3020688912L, 2168345327L, 3149651862L, 1472484695L,
    2011779229L, 1112533726L, 1873931730L, 2196153055L, 3806225492L, 1515074892L, 251489714L, 1958141723L, 2081062631L,
    3703490262L, 3211541213L, 1436109217L, 2664448365L, 2350764370L, 1285829042L, 3496997759L, 2306637687L, 1571644344L,
    1020052455L, 3114491401L, 2994766034L, 1518527036L, 994512437L, 1732585804L, 2089330296L, 2592371643L, 2377347339L,
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    2704867468L, 3843423543L, 119359906L, 1882384901L, 832276556L, 1862974878L, 1943541262L, 1823624942L, 2146680272L,
    333006125L, 929197835L, 639017219L, 1640196300L, 1424826762L, 2119569013L, 4259272802L, 2089277168L, 2030198981L,
    2950559216L, 621654826L, 3452546704L, 4085446289L, 3038316311L, 527272378L, 1679817853L, 450787204L, 3525043861L,
    3838351358L, 1558592021L, 3649888848L, 3328370698L, 3247166155L, 3855970537L, 1183088418L, 2778702834L, 2820277014L,
    1530905121L, 1434023607L, 3942716950L, 41643359L, 310637634L, 1537174663L, 4265200088L, 3126624846L, 2837665903L,
    446994733L, 85970060L, 643115053L, 1751804182L, 1480207958L, 2977093071L, 544778713L, 738954842L, 3370733859L,
    3242319053L, 2707786138L, 4041098196L, 1671493839L, 3420415077L, 2473516599L, 3949211965L, 3686186772L, 753757988L,
    220738063L, 772481263L, 974568026L, 3190407677L, 480257177L, 3620733162L, 2616878358L, 665763320L, 2808607644L,
    3851308236L, 3633157256L, 4240746864L, 1261222691L, 268963935L, 1449514350L, 4229662564L, 1342533852L, 1913674460L,
    1761163533L, 1974260074L, 739184472L, 3811507072L, 2880992381L, 3998389163L, 2673626426L, 2212222504L, 231447607L,
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    2649061310L, 3081089715L, 3432955562L, 2217740069L, 1965789353L, 3320360228L, 3625802364L, 2420747908L, 3116949010L,
    442654625L, 2157578112L, 3603825090L, 3111995525L, 1124579902L, 101836896L, 3297125816L, 136981134L, 4253748197L,
    3809600572L, 1668193778L, 4146759785L, 3712590372L, 2998653463L, 3032597504L, 1046471011L, 2843821193L, 802959497L,
    3307715534L, 3226042258L, 1014478160L, 3105844949L, 3209150965L, 610876993L, 2563947590L, 2482526324L, 3913970138L,
    2812702315L, 4281779167L, 1026357391L, 2579486306L, 402208L, 3457975059L, 1714004950L, 2543595755L, 2421499458L,
    478932497L, 3117588180L, 1565800974L, 1757724858L, 1483685124L, 2262270397L, 3794544469L, 3986696110L, 2914756339L,
    1952061826L, 2672480198L, 3793151752L, 309930721L, 1861137379L, 94571340L, 1162935802L, 3681554226L, 4027302061L,
    21079572L, 446709644L, 1587253187L, 1845056582L, 3080553052L, 3575272255L, 2526224735L, 3569822959L, 2685900491L,
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    3659512663L, 1521189121L, 843749206L, 2243090279L, 572717972L, 3400421356L, 3440777300L, 1393518699L, 1681924551L,
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    802596998L, 3397391306L, 1743834429L, 395463904L, 2099329462L, 3761809163L, 262702111L, 1868879810L, 2887406426L,
    1160032302L, 4164116477L, 2287740849L, 3312176050L, 747117003L, 4048006270L, 3955419375L, 2724452926L, 3141695820L,
    791246424L, 524525849L, 1794277132L, 295485241L, 4125127474L, 825108028L, 1582794137L, 1259992755L, 2938829230L,
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    3458779287L, 1737687814L, 287275672L, 645786941L, 1492233180L, 3925845678L, 3344829077L, 1669219217L, 665224162L,
    2679234088L, 1986576411L, 50610077L, 1080114376L, 1881648396L, 3818465156L, 1486861008L, 3824208930L, 1782008170L,
    4115911912L, 656413265L, 771498619L, 2709443211L, 1919820065L, 451888753L, 1449812173L, 2001941180L, 2997921765L,
    753032713L, 3011517640L, 2386888602L, 3181040472L, 1280522185L, 1036471598L, 1243809973L, 2985144032L, 2238294821L,
    557934351L, 347132246L, 1797956016L, 624L), None)
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    setstate(init_state)
    lst, init_state = rand_list_of(n)

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    print "original list:"
    print lst

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    with lltype.scoped_alloc(rffi.CArray(rffi.LONGLONG), n) as arr:
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        for i, k in enumerate(lst):
            arr[i] = k
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        fnc(arr, 0, n - 1)  # inplace sort
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        lst_s = sorted(lst)
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        for i in range(n):
            assert lst_s[i] == arr[i], "%d != %d" % (lst_s[i], arr[i])
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@may_spawn_proc
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def test_partition_in_quicksort():
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    # algorithm taken from Wikipedia
    def swap(arr, i, j):
        t = arr[i]
        arr[i] = arr[j]
        arr[j] = t

    def partition(arr, idx_low, idx_high):
        pivot = arr[idx_high]
        i = idx_low
        for j in range(idx_low, idx_high):
            if arr[j] < pivot:
                swap(arr, i, j)
                i += 1
        swap(arr, i, idx_high)
        return i

    fnc, (db, bdlgen) = fncptr_from_rpy_func(partition, [rffi.CArrayPtr(rffi.LONGLONG), lltype.Signed, lltype.Signed],
                                             lltype.Signed)
    bdlgen.mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
    # fnc = partition

    n = 100
    from random import setstate
    init_state = (3, (
    2147483648L, 3430835514L, 2928424416L, 3147699060L, 2823572732L, 2905216632L, 1887281517L, 14272356L, 1356039141L,
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    139268705L, 3784719953L, 2212355490L, 3452491289L, 1232629882L, 1791207424L, 2898278956L, 1147783320L, 1824413680L,
    1993303973L, 2568444883L, 4228847642L, 4163974668L, 385627078L, 3663560714L, 320542554L, 1565882322L, 3416481154L,
    4219229298L, 315071254L, 778331393L, 3961037651L, 2951403614L, 3355970261L, 102946340L, 2509883952L, 215897963L,
    3361072826L, 689991350L, 3348092598L, 1763608447L, 2140226443L, 3813151178L, 2619956936L, 51244592L, 2130725065L,
    3867113849L, 1980820881L, 2600246771L, 3207535572L, 257556968L, 2223367443L, 3706150033L, 1711074250L, 4252385224L,
    3197142331L, 4139558716L, 748471849L, 2281163369L, 2596250092L, 2804492653L, 484240110L, 3726117536L, 2483815933L,
    2173995598L, 3765136999L, 3178931194L, 1237068319L, 3427263384L, 3958412830L, 2268556676L, 360704423L, 4113430429L,
    3758882140L, 3743971788L, 1685454939L, 488386L, 3511218911L, 3020688912L, 2168345327L, 3149651862L, 1472484695L,
    2011779229L, 1112533726L, 1873931730L, 2196153055L, 3806225492L, 1515074892L, 251489714L, 1958141723L, 2081062631L,
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    2617648350L, 1478066246L, 389918052L, 1126787130L, 2728695369L, 2921719205L, 3193658789L, 2101782606L, 4284039483L,
    2704867468L, 3843423543L, 119359906L, 1882384901L, 832276556L, 1862974878L, 1943541262L, 1823624942L, 2146680272L,
    333006125L, 929197835L, 639017219L, 1640196300L, 1424826762L, 2119569013L, 4259272802L, 2089277168L, 2030198981L,
    2950559216L, 621654826L, 3452546704L, 4085446289L, 3038316311L, 527272378L, 1679817853L, 450787204L, 3525043861L,
    3838351358L, 1558592021L, 3649888848L, 3328370698L, 3247166155L, 3855970537L, 1183088418L, 2778702834L, 2820277014L,
    1530905121L, 1434023607L, 3942716950L, 41643359L, 310637634L, 1537174663L, 4265200088L, 3126624846L, 2837665903L,
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    3242319053L, 2707786138L, 4041098196L, 1671493839L, 3420415077L, 2473516599L, 3949211965L, 3686186772L, 753757988L,
    220738063L, 772481263L, 974568026L, 3190407677L, 480257177L, 3620733162L, 2616878358L, 665763320L, 2808607644L,
    3851308236L, 3633157256L, 4240746864L, 1261222691L, 268963935L, 1449514350L, 4229662564L, 1342533852L, 1913674460L,
    1761163533L, 1974260074L, 739184472L, 3811507072L, 2880992381L, 3998389163L, 2673626426L, 2212222504L, 231447607L,
    2608719702L, 3509764733L, 2403318909L, 635983093L, 4233939991L, 2894463467L, 177171270L, 2962364044L, 1191007101L,
    882222586L, 1004217833L, 717897978L, 2125381922L, 626199402L, 3694698943L, 1373935523L, 762314613L, 2291077454L,
    2111081024L, 3758576304L, 2812129656L, 4067461097L, 3700761868L, 2281420733L, 197217625L, 460620692L, 506837624L,
    1532931238L, 3872395078L, 3629107738L, 2273221134L, 2086345980L, 1240615886L, 958420495L, 4059583254L, 3119201875L,
    3742950862L, 891360845L, 2974235885L, 87814219L, 4067521161L, 615939803L, 1881195074L, 2225917026L, 2775128741L,
    2996201447L, 1590546624L, 3960431955L, 1417477945L, 913935155L, 1610033170L, 3212701447L, 2545374014L, 2887105562L,
    2991635417L, 3194532260L, 1565555757L, 2142474733L, 621483430L, 2268177481L, 919992760L, 2022043644L, 2756890220L,
    881105937L, 2621060794L, 4262292201L, 480112895L, 2557060162L, 2367031748L, 2172434102L, 296539623L, 3043643256L,
    59166373L, 2947638193L, 1312917612L, 1798724013L, 75864164L, 339661149L, 289536004L, 422147716L, 1134944052L,
    1095534216L, 1231984277L, 239787072L, 923053211L, 1015393503L, 2558889580L, 4194512643L, 448088150L, 707905706L,
    2649061310L, 3081089715L, 3432955562L, 2217740069L, 1965789353L, 3320360228L, 3625802364L, 2420747908L, 3116949010L,
    442654625L, 2157578112L, 3603825090L, 3111995525L, 1124579902L, 101836896L, 3297125816L, 136981134L, 4253748197L,
    3809600572L, 1668193778L, 4146759785L, 3712590372L, 2998653463L, 3032597504L, 1046471011L, 2843821193L, 802959497L,
    3307715534L, 3226042258L, 1014478160L, 3105844949L, 3209150965L, 610876993L, 2563947590L, 2482526324L, 3913970138L,
    2812702315L, 4281779167L, 1026357391L, 2579486306L, 402208L, 3457975059L, 1714004950L, 2543595755L, 2421499458L,
    478932497L, 3117588180L, 1565800974L, 1757724858L, 1483685124L, 2262270397L, 3794544469L, 3986696110L, 2914756339L,
    1952061826L, 2672480198L, 3793151752L, 309930721L, 1861137379L, 94571340L, 1162935802L, 3681554226L, 4027302061L,
    21079572L, 446709644L, 1587253187L, 1845056582L, 3080553052L, 3575272255L, 2526224735L, 3569822959L, 2685900491L,
    918305237L, 1399881227L, 1554912161L, 703181091L, 738501299L, 269937670L, 1078548118L, 2313670525L, 3495159622L,
    2659487842L, 11394628L, 1222454456L, 3392065094L, 3426833642L, 1153231613L, 1234517654L, 3144547626L, 2148039080L,
    3790136587L, 684648337L, 3956093475L, 1384378197L, 2042781475L, 759764431L, 222267088L, 3187778457L, 3795259108L,
    2817237549L, 3494781277L, 3762880618L, 892345749L, 2153484401L, 721588894L, 779278769L, 3306398772L, 4221452913L,
    1981375723L, 379087895L, 1604791625L, 1426046977L, 4231163093L, 1344994557L, 1341041093L, 1072537134L, 1829925137L,
    3791772627L, 3176876700L, 2553745117L, 664821113L, 473469583L, 1076256869L, 2406012795L, 3141453822L, 4123012649L,
    3058620143L, 1785080140L, 1181483189L, 3587874749L, 1453504375L, 707249496L, 2022787257L, 2436320047L, 602521701L,
    483826957L, 821599664L, 3333871672L, 3024431570L, 3814441382L, 416508285L, 1217138244L, 3975201118L, 3077724941L,
    180118569L, 3754556886L, 4121534265L, 3495283397L, 700504668L, 3113972067L, 719371171L, 910731026L, 619936911L,
    2937105529L, 2039892965L, 3853404454L, 3783801801L, 783321997L, 1135195902L, 326690505L, 1774036419L, 3476057413L,
    1518029608L, 1248626026L, 427510490L, 3443223611L, 4087014505L, 2858955517L, 1918675812L, 3921514056L, 3929126528L,
    4048889933L, 1583842117L, 3742539544L, 602292017L, 3393759050L, 3929818519L, 3119818281L, 3472644693L, 1993924627L,
    4163228821L, 2943877721L, 3143487730L, 4087113198L, 1149082355L, 1713272081L, 1243627655L, 3511633996L, 3358757220L,
    3812981394L, 650044449L, 2143650644L, 3869591312L, 3719322297L, 386030648L, 2633538573L, 672966554L, 3498396042L,
    3907556L, 2308686209L, 2878779858L, 1475925955L, 2701537395L, 1448018484L, 2962578755L, 1383479284L, 3731453464L,
    3659512663L, 1521189121L, 843749206L, 2243090279L, 572717972L, 3400421356L, 3440777300L, 1393518699L, 1681924551L,
    466257295L, 568413244L, 3288530316L, 2951425105L, 2624424893L, 2410788864L, 2243174464L, 1385949609L, 2454100663L,
    1113953725L, 2127471443L, 1775715557L, 3874125135L, 1901707926L, 3152599339L, 2277843623L, 1941785089L, 3171888228L,
    802596998L, 3397391306L, 1743834429L, 395463904L, 2099329462L, 3761809163L, 262702111L, 1868879810L, 2887406426L,
    1160032302L, 4164116477L, 2287740849L, 3312176050L, 747117003L, 4048006270L, 3955419375L, 2724452926L, 3141695820L,
    791246424L, 524525849L, 1794277132L, 295485241L, 4125127474L, 825108028L, 1582794137L, 1259992755L, 2938829230L,
    912029932L, 1534496985L, 3075283272L, 4052041116L, 1125808104L, 2032938837L, 4008676545L, 1638361535L, 1649316497L,
    1302633381L, 4221627277L, 1206130263L, 3114681993L, 3409690900L, 3373263243L, 2922903613L, 349048087L, 4049532385L,
    3458779287L, 1737687814L, 287275672L, 645786941L, 1492233180L, 3925845678L, 3344829077L, 1669219217L, 665224162L,
    2679234088L, 1986576411L, 50610077L, 1080114376L, 1881648396L, 3818465156L, 1486861008L, 3824208930L, 1782008170L,
    4115911912L, 656413265L, 771498619L, 2709443211L, 1919820065L, 451888753L, 1449812173L, 2001941180L, 2997921765L,
    753032713L, 3011517640L, 2386888602L, 3181040472L, 1280522185L, 1036471598L, 1243809973L, 2985144032L, 2238294821L,
    557934351L, 347132246L, 1797956016L, 624L), None)
    setstate(init_state)
    lst, init_state = rand_list_of(n)

    with lltype.scoped_alloc(rffi.CArray(rffi.LONGLONG), n) as arr:
        for i, k in enumerate(lst):
            arr[i] = k

        idx = fnc(arr, 0, n - 1)

        first_partition = [
            -562164038,
            -2071388465,
            -663526532,
            77489857,
            -343649111,
            -1660130362,
            -1364581753,
            -2038184925,
            -1165174475,
            -1849978230,
            -1236284585,
            -347764193,
            -415184763,
            -864996653,
            -1431147879,
            -254259567,
            -948603419,
            -777817366,
            -762104870,
            118960100,
            -982992600,
            -291431596,
            -1300455919,
            98312853,
            -451757010,
            -127589060,
            -1770428162,
            -1836098229,
            -918293874,
            -337375506,
            -1787719536,
            -2086483893,
            -730620516,
            -365703180,
            -1528919012,
            -1666015908,
            75036665,
            -1068382947,
            -2097740676,
            -158140475,
            181349155,
            1134943658,
            926214681,
            1436898456,
            1896535137,
            654725403,
            964722898,
            829972680,
            777329866,
            726385788,
            1050914914,
            1280292061,
            727975360,
            1023937016,
            640384790,
            637969418,
            1884043455,
            1925731670,
            1057772537,
            1322685888,
            1351410892,
            945183403,
            2014860171,
            1918531212,
            955471993,
            1075682797,
            238111242,
            1508508491,
            828291293,
            1789417882,
            1102829861,
            1435471727,
            1980476539,
            1344494232,
            1771547746,
            784699465,
            478704353,
            1664007571,
            511675340,
            1174338681,
            835473661,
            1039011592,
            1901271880,
            1983373831,
            782060246,
            1847820592,
            1751300194,
            558677750,
            1338238899,
            1313544470,
            232877310,
            599055646,
            873066597,
            1433425901,
            1192634012,
            1322616334,
            2026877877,
            1070749459,
            1899988061,
            632945766,
        ]

        assert idx == 40
        for i in range(n):
            assert arr[i] == first_partition[i], "%d != %d" % (arr[i], first_partition[i])


425
@may_spawn_proc
426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441
def test_linkedlist_reversal():
    def reverse_linkedlist(head):
        h = head
        nxt = head.nxt
        while nxt:
            n = nxt.nxt
            nxt.nxt = h
            h = nxt
            nxt = n
        head.nxt = nxt
        return h

    Node = lltype.ForwardReference()
    NodePtr = lltype.Ptr(Node)
    Node.become(lltype.Struct("Node", ('val', rffi.CHAR), ('nxt', NodePtr)))

442
    fnc, (db, bdlgen) = fncptr_from_rpy_func(reverse_linkedlist, [NodePtr], NodePtr)
443 444
    bdlgen.mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
    # fnc = reverse_linkedlist
445 446 447 448 449 450 451 452 453 454 455 456 457 458 459

    # linked list: a -> b -> c -> d
    with lltype.scoped_alloc(Node) as a:
        a.val = 'a'
        with lltype.scoped_alloc(Node) as b:
            a.nxt = b
            b.val = 'b'
            with lltype.scoped_alloc(Node) as c:
                b.nxt = c
                c.val = 'c'
                with lltype.scoped_alloc(Node) as d:
                    c.nxt = d
                    d.val = 'd'
                    d.nxt = lltype.nullptr(Node)

460 461 462 463 464 465 466
                    h = fnc(a)
                    print '%s -> %s -> %s -> %s' % (h.val, h.nxt.val, h.nxt.nxt.val, h.nxt.nxt.nxt.val)
                    assert h.val == 'd'
                    assert h.nxt.val == 'c'
                    assert h.nxt.nxt.val == 'b'
                    assert h.nxt.nxt.nxt.val == 'a'
                    assert h.nxt.nxt.nxt.nxt == lltype.nullptr(Node)
467

468

469
@may_spawn_proc
470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568
def test_threadtran_fib():
    def build_test_bundle(bldr, rmu):
        """
        Builds the following test bundle.
            .typedef @i64 = int<64>
            .const @0_i64 <@i64> = 0
            .const @1_i64 <@i64> = 1
            .const @2_i64 <@i64> = 2
            .funcsig @sig_i64_i64 = (@i64) -> (@i64)
            .funcdef @fib VERSION @fib_v1 <@sig_i64_i64> {
                @fib_v1.blk0(<@i64> @fib_v1.blk0.k):
                    SWITCH <@i64> @fib_v1.blk0.k @fib_v1.blk2 (@fib_v1.blk0.k) {
                        @0_i64 @fib_v1.blk1 (@0_i64)
                        @1_i64 @fib_v1.blk1 (@1_i64)
                    }
                @fib_v1.blk1(<@i64> @fib_v1.blk1.rtn):
                    RET @fib_v1.blk1.rtn
                @fib_v1.blk2(<@i64> @fib_v1.blk1.k):
                    @fib_v1.blk2.k_1 = SUB <@i64> @fib_v1.blk2.k @1_i64
                    @fib_v1.blk2.res1 = CALL <@sig_i64_i64> @fib (@fib_v1.blk2.k_1)
                    @fib_v1.blk2.k_2 = SUB <@i64> @fib_v1.blk2.k @2_i64
                    @fib_v1.blk2.res2 = CALL <@sig_i64_i64> @fib (@fib_v1.blk2.k_2)
                    @fib_v1.blk2.res = ADD <@i64> @fib_v1.blk2.res1 @fib_v1.blk2.res2
                    RET @fib_v1.blk2.res2
            }
        :type bldr: rpython.rlib.rmu.MuIRBuilder
        :type rmu: rpython.rlib.rmu_fast
        :return: (rmu.MuVM(), rmu.MuCtx, rmu.MuIRBuilder, MuID, MuID)
        """
        i64 = bldr.gen_sym("@i64")
        bldr.new_type_int(i64, 64)

        c_0_i64 = bldr.gen_sym("@0_i64")
        bldr.new_const_int(c_0_i64, i64, 0)
        c_1_i64 = bldr.gen_sym("@1_i64")
        bldr.new_const_int(c_1_i64, i64, 1)
        c_2_i64 = bldr.gen_sym("@2_i64")
        bldr.new_const_int(c_2_i64, i64, 2)

        sig_i64_i64 = bldr.gen_sym("@sig_i64_i64")
        bldr.new_funcsig(sig_i64_i64, [i64], [i64])

        fib = bldr.gen_sym("@fib")
        bldr.new_func(fib, sig_i64_i64)

        # function body
        v1 = bldr.gen_sym("@fib_v1")
        blk0 = bldr.gen_sym("@fib_v1.blk0")
        blk1 = bldr.gen_sym("@fib_v1.blk1")
        blk2 = bldr.gen_sym("@fib_v1.blk2")

        # blk0
        blk0_k = bldr.gen_sym("@fib_v1.blk0.k")
        dest_defl = bldr.gen_sym()
        dest_0 = bldr.gen_sym()
        dest_1 = bldr.gen_sym()
        bldr.new_dest_clause(dest_defl, blk2, [blk0_k])
        bldr.new_dest_clause(dest_0, blk1, [c_0_i64])
        bldr.new_dest_clause(dest_1, blk1, [c_1_i64])
        op_switch = bldr.gen_sym()
        bldr.new_switch(op_switch, i64, blk0_k, dest_defl, [c_0_i64, c_1_i64], [dest_0, dest_1])
        bldr.new_bb(blk0, [blk0_k], [i64], rmu.MU_NO_ID, [op_switch])

        # blk1
        blk1_rtn = bldr.gen_sym("@fig_v1.blk1.rtn")
        blk1_op_ret = bldr.gen_sym()
        bldr.new_ret(blk1_op_ret, [blk1_rtn])
        bldr.new_bb(blk1, [blk1_rtn], [i64], rmu.MU_NO_ID, [blk1_op_ret])

        # blk2
        blk2_k = bldr.gen_sym("@fig_v1.blk2.k")
        blk2_k_1 = bldr.gen_sym("@fig_v1.blk2.k_1")
        blk2_k_2 = bldr.gen_sym("@fig_v1.blk2.k_2")
        blk2_res = bldr.gen_sym("@fig_v1.blk2.res")
        blk2_res1 = bldr.gen_sym("@fig_v1.blk2.res1")
        blk2_res2 = bldr.gen_sym("@fig_v1.blk2.res2")
        op_sub_1 = bldr.gen_sym()
        bldr.new_binop(op_sub_1, blk2_k_1, rmu.MuBinOptr.SUB, i64, blk2_k, c_1_i64)
        op_call_1 = bldr.gen_sym()
        bldr.new_call(op_call_1, [blk2_res1], sig_i64_i64, fib, [blk2_k_1])
        op_sub_2 = bldr.gen_sym()
        bldr.new_binop(op_sub_2, blk2_k_2, rmu.MuBinOptr.SUB, i64, blk2_k, c_2_i64)
        op_call_2 = bldr.gen_sym()
        bldr.new_call(op_call_2, [blk2_res2], sig_i64_i64, fib, [blk2_k_2])
        op_add = bldr.gen_sym()
        bldr.new_binop(op_add, blk2_res, rmu.MuBinOptr.ADD, i64, blk2_res1, blk2_res2)
        blk2_op_ret = bldr.gen_sym()
        bldr.new_ret(blk2_op_ret, [blk2_res])
        bldr.new_bb(blk2, [blk2_k], [i64], rmu.MU_NO_ID,
                    [op_sub_1, op_call_1, op_sub_2, op_call_2, op_add, blk2_op_ret])
        bldr.new_func_ver(v1, fib, [blk0, blk1, blk2])

        return {
            "@i64": i64,
            "test_fnc_sig": sig_i64_i64,
            "test_fnc": fib,
            "result_type": i64
        }

569
    (fnp, _), (mu, ctx, bldr) = fncptr_from_py_script(build_test_bundle, None, 'fib', [ctypes.c_longlong])
570 571

    mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
572

573
    assert fnp(20) == 6765
574 575


576
@may_spawn_proc
577
def test_new():
578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639
    def build_test_bundle(bldr, rmu):
        """
        Builds the following test bundle.
            .typedef @i64 = int<64>
            .typedef @refi64 = ref<@i64>
            .const @1_i64 <@i64> = 1
            .const @NULL_refi64 <@refi64> = NULL
            .funcsig @sig__i64 = () -> (@i64)
            .funcdef @test_fnc VERSION @test_fnc.v1 <@sig__i64> {
                %blk0():
                    %r = NEW <@i64>
                    %ir = GETIREF <@refi64> %r
                    STORE <@i64> %ir @1_i64
                    %res = LOAD <@i64> %ir
                    RET %res
            }
        :type bldr: rpython.rlib.rmu.MuIRBuilder
        :type rmu: rpython.rlib.rmu_fast
        :return: (rmu.MuVM(), rmu.MuCtx, rmu.MuIRBuilder, MuID, MuID)
        """
        i1 = bldr.gen_sym("@i1")
        bldr.new_type_int(i1, 1)
        i64 = bldr.gen_sym("@i64")
        bldr.new_type_int(i64, 64)
        refi64 = bldr.gen_sym("@refi64")
        bldr.new_type_ref(refi64, i64)

        c_1_i64 = bldr.gen_sym("@1_64")
        bldr.new_const_int(c_1_i64, i64, 1)

        sig__i64 = bldr.gen_sym("@sig__i64")
        bldr.new_funcsig(sig__i64, [], [i64])

        test_fnc = bldr.gen_sym("@test_fnc")
        bldr.new_func(test_fnc, sig__i64)

        test_fnc_v1 = bldr.gen_sym("@test_fnc.v1")
        blk0 = bldr.gen_sym("@test_fnc.v1.blk0")
        r = bldr.gen_sym("@test_fnc.v1.blk0.r")
        ir = bldr.gen_sym("@test_fnc.v1.blk0.ir")
        res = bldr.gen_sym("@test_fnc.v1.blk0.res")
        op_new = bldr.gen_sym()
        bldr.new_new(op_new, r, i64)
        op_getiref = bldr.gen_sym()
        bldr.new_getiref(op_getiref, ir, refi64, r)
        op_store = bldr.gen_sym()
        bldr.new_store(op_store, False, rmu.MuMemOrd.NOT_ATOMIC, i64, ir, c_1_i64)
        op_load = bldr.gen_sym()
        bldr.new_load(op_load, res, False, rmu.MuMemOrd.NOT_ATOMIC, i64, ir)
        op_ret = bldr.gen_sym()
        bldr.new_ret(op_ret, [res])
        bldr.new_bb(blk0, [], [], rmu.MU_NO_ID, [op_new, op_getiref, op_store, op_load, op_ret])

        bldr.new_func_ver(test_fnc_v1, test_fnc, [blk0])

        return {
            "test_fnc": test_fnc,
            "test_fnc_sig": sig__i64,
            "result_type": i64,
            "@i64": i64
        }

640
    (fnp, _), (mu, ctx, bldr) = fncptr_from_py_script(build_test_bundle, None, 'test_fnc')
641 642

    mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
643
    assert fnp() == 1
644 645


646
@may_spawn_proc
647
def test_new_cmpeq():
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    def build_test_bundle(bldr, rmu):
        """
        Builds the following test bundle.
            .typedef @i64 = int<64>
            .typedef @refi64 = ref<@i64>
            .const @NULL_refi64 <@refi64> = NULL
            .funcsig @sig__i64 = () -> (@i64)
            .funcdef @test_fnc VERSION @test_fnc.v1 <@sig__i64> {
                @test_fnc.v1.blk0():
                    @test_fnc.v1.blk0.r = NEW <@i64>
                    @test_fnc.v1.blk0.cmpres = EQ <@refi64> @test_fnc.v1.blk0.r @NULL_refi64
                    @@test_fnc.v1.blk0.res = ZEXT <@i1 @i64> @test_fnc.v1.blk0.cmpres
                    RET @test_fnc.v1.blk0.res
            }
        :type bldr: rpython.rlib.rmu.MuIRBuilder
        :type rmu: rpython.rlib.rmu_fast
        :return: (rmu.MuVM(), rmu.MuCtx, rmu.MuIRBuilder, MuID, MuID)
        """
        i1 = bldr.gen_sym("@i1")
        bldr.new_type_int(i1, 1)
        i64 = bldr.gen_sym("@i64")
        bldr.new_type_int(i64, 64)
        refi64 = bldr.gen_sym("@refi64")
        bldr.new_type_ref(refi64, i64)

        NULL_refi64 = bldr.gen_sym("@NULL_refi64")
        bldr.new_const_null(NULL_refi64, refi64)

        sig__i64 = bldr.gen_sym("@sig__i64")
        bldr.new_funcsig(sig__i64, [], [i64])

        test_fnc = bldr.gen_sym("@test_fnc")
        bldr.new_func(test_fnc, sig__i64)

        test_fnc_v1 = bldr.gen_sym("@test_fnc.v1")
        blk0 = bldr.gen_sym("@test_fnc.v1.blk0")
        r = bldr.gen_sym("@test_fnc.v1.blk0.r")
        cmpres = bldr.gen_sym("@test_fnc.v1.blk0.cmpres")
        res = bldr.gen_sym("@test_fnc.v1.blk0.res")
        op_new = bldr.gen_sym()
        bldr.new_new(op_new, r, i64)
        op_eq = bldr.gen_sym()
        bldr.new_cmp(op_eq, cmpres, rmu.MuCmpOptr.EQ, refi64, r, NULL_refi64)
        op_zext = bldr.gen_sym()
        bldr.new_conv(op_zext, res, rmu.MuConvOptr.ZEXT, i1, i64, cmpres)
        op_ret = bldr.gen_sym()
        bldr.new_ret(op_ret, [res])
        bldr.new_bb(blk0, [], [], rmu.MU_NO_ID, [op_new, op_eq, op_zext, op_ret])

        bldr.new_func_ver(test_fnc_v1, test_fnc, [blk0])

        return {
            "test_fnc": test_fnc,
            "test_fnc_sig": sig__i64,
            "result_type": i64,
            "@i64": i64
        }

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    (fnp, _), (mu, ctx, bldr) = fncptr_from_py_script(build_test_bundle, None, 'test_fnc')
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    mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
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    assert fnp() == 0

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@may_spawn_proc
def test_throw():
    def build_test_bundle(bldr, rmu):
        """
        Builds the following test bundle.
            .typedef @i64 = int<64>
            .typedef @void = void
            .typedef @refi64 = ref<@i64>
            .typedef @refvoid = ref<@void>
            .const @c_10 <@i64> = 10
            .const @c_20 <@i64> = 20
            .const @c_42 <@i64> = 42
            .funcsig @sig_i64_i64 = (@i64) -> (@i64)
            .funcdef @throw_fnc VERSION @throw_fnc.v1 <@sig_i64_i64> {
                %blk0(<@i64> %num):
                    %cmpres = SLT <@i64> %num @c_42
                    BRANCH2 %cmpres %blk1() %blk2()
                %blk1():
                    %excobj = NEW <@i64>
                    %iref_obj = GETIREF <@i64> %excobj
                    STORE <@i64> %iref_obj @c_20
                    THROW %excobj
                %blk2():
                    RET (@c_10)
            }
            .funcdef @test_fnc VERSION @test_fnc.v1 <@sig_i64_i64> {
                %blk0(<@i64> %num):
                    %res = CALL <@sig_i64_i64> @throw_fnc (%num) EXC(%blk1(%res) %blk2())
                %blk1(<@i64> %rtn):
                    RET %rtn
                %blk2()[%excobj]:
                    %ri64 = REFCAST <@refvoid @refi64> %excobj
                    %iri64 = GETIREF <@i64> %excobj
                    %obj = LOAD <@i64> %iri64
                    BRANCH %blk1(%obj)
            }
        :type bldr: rpython.rlib.rmu.MuIRBuilder
        :type rmu: rpython.rlib.rmu
        :return: (rmu.MuVM(), rmu.MuCtx, rmu.MuIRBuilder, MuID, MuID)
        """
        void = bldr.gen_sym("@void"); bldr.new_type_void(void)
        i64 = bldr.gen_sym("@i64"); bldr.new_type_int(i64, 64)
        refi64 = bldr.gen_sym("@refi64"); bldr.new_type_ref(refi64, i64)
        refvoid = bldr.gen_sym("@refvoid"); bldr.new_type_ref(refvoid, void)

        c_10 = bldr.gen_sym("@c_10"); bldr.new_const_int(c_10, i64, 10)
        c_20 = bldr.gen_sym("@c_20"); bldr.new_const_int(c_20, i64, 20)
        c_42 = bldr.gen_sym("@c_42"); bldr.new_const_int(c_42, i64, 42)

        sig_i64_i64 = bldr.gen_sym("@sig_i64_i64"); bldr.new_funcsig(sig_i64_i64, [i64], [i64])

        test_fnc = bldr.gen_sym("@test_fnc"); bldr.new_func(test_fnc, sig_i64_i64)
        throw_fnc = bldr.gen_sym("@throw_fnc"); bldr.new_func(throw_fnc, sig_i64_i64)

        throw_fnc_v1 = bldr.gen_sym("@throw_fnc.v1")
        blk0 = bldr.gen_sym("@throw_fnc.v1.blk0")
        blk1 = bldr.gen_sym("@throw_fnc.v1.blk1")
        blk2 = bldr.gen_sym("@throw_fnc.v1.blk2")

        # blk0
        num = bldr.gen_sym("@throw_fnc.v1.blk0.num")
        cmpres = bldr.gen_sym("@throw_fnc.v1.blk0.cmpres")
        op_slt = bldr.gen_sym(); bldr.new_cmp(op_slt, cmpres, rmu.MuCmpOptr.SLT, i64, num, c_42)
        dst_t = bldr.gen_sym(); bldr.new_dest_clause(dst_t, blk1, [])
        dst_f = bldr.gen_sym(); bldr.new_dest_clause(dst_f, blk2, [])
        op_br2 = bldr.gen_sym(); bldr.new_branch2(op_br2, cmpres, dst_t, dst_f)
        bldr.new_bb(blk0, [num], [i64], rmu.MU_NO_ID, [op_slt, op_br2])

        # blk1
        excobj = bldr.gen_sym("@throw_fnc.v1.blk1.excobj")
        iref_obj = bldr.gen_sym("@throw_fnc.v1.blk1.iref_obj")
        op_new = bldr.gen_sym(); bldr.new_new(op_new, excobj, i64)
        op_getiref = bldr.gen_sym(); bldr.new_getiref(op_getiref, iref_obj, i64, excobj)
        op_store = bldr.gen_sym(); bldr.new_store(op_store, False, rmu.MuMemOrd.NOT_ATOMIC, i64, iref_obj, c_20)
        op_throw = bldr.gen_sym(); bldr.new_throw(op_throw, excobj)
        bldr.new_bb(blk1, [], [], rmu.MU_NO_ID, [op_new, op_getiref, op_store, op_throw])

        # blk2
        op_ret = bldr.gen_sym(); bldr.new_ret(op_ret, [c_10])
        bldr.new_bb(blk2, [], [], rmu.MU_NO_ID, [op_ret])

        bldr.new_func_ver(throw_fnc_v1, throw_fnc, [blk0, blk1, blk2])

        test_fnc_v1 = bldr.gen_sym("@test_fnc.v1")
        blk0 = bldr.gen_sym("@test_fnc.v1.blk0")
        blk1 = bldr.gen_sym("@test_fnc.v1.blk1")
        blk2 = bldr.gen_sym("@test_fnc.v1.blk2")

        # blk0
        num = bldr.gen_sym("@test_fnc.v1.blk0.num")
        res = bldr.gen_sym("@test_fnc.v1.blk0.res")
        dst_nor = bldr.gen_sym(); bldr.new_dest_clause(dst_nor, blk1, [res])
        dst_exc = bldr.gen_sym(); bldr.new_dest_clause(dst_exc, blk2, [])
        exc = bldr.gen_sym(); bldr.new_exc_clause(exc, dst_nor, dst_exc)
        op_call = bldr.gen_sym(); bldr.new_call(op_call, [res], sig_i64_i64, throw_fnc, [num], exc)
        bldr.new_bb(blk0, [num], [i64], rmu.MU_NO_ID, [op_call])

        # blk1
        rtn = bldr.gen_sym("@test_fnc.v1.blk1.rtn")
        op_ret = bldr.gen_sym(); bldr.new_ret(op_ret, [rtn])
        bldr.new_bb(blk1, [rtn], [i64], rmu.MU_NO_ID, [op_ret])

        # blk2
        excobj = bldr.gen_sym("@test_fnc.v1.blk2.excobj")
        ri64 = bldr.gen_sym("@test_fnc.v1.blk2.ri64")
        iri64 = bldr.gen_sym("@test_fnc.v1.blk2.iri64")
        obj = bldr.gen_sym("@test_fnc.v1.blk2.obj")
        op_refcast = bldr.gen_sym(); bldr.new_conv(op_refcast, ri64, rmu.MuConvOptr.REFCAST, refvoid, refi64, excobj)
        op_getiref = bldr.gen_sym(); bldr.new_getiref(op_getiref, iri64, i64, ri64)
        op_load = bldr.gen_sym(); bldr.new_load(op_load, obj, False, rmu.MuMemOrd.NOT_ATOMIC, i64, iri64)
        dst = bldr.gen_sym(); bldr.new_dest_clause(dst, blk1, [obj])
        op_br = bldr.gen_sym(); bldr.new_branch(op_br, dst)
        bldr.new_bb(blk2, [], [], excobj, [op_refcast, op_getiref, op_load, op_br])

        bldr.new_func_ver(test_fnc_v1, test_fnc, [blk0, blk1, blk2])

        return {
            "test_fnc": test_fnc,
            "test_fnc_sig": sig_i64_i64,
            "result_type": i64,
            "@i64": i64,
            "@refi64": refi64
        }

    (fnp, _), (mu, ctx, bldr) = fncptr_from_py_script(build_test_bundle, None, 'test_fnc', [ctypes.c_int64],
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    mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
    assert fnp(0) == 20
    assert fnp(100) == 10


@may_spawn_proc
def test_exception_stack_unwind():
    def build_test_bundle(bldr, rmu):
        """
        Builds the following test bundle.
            .typedef @i64 = int<64>
            .typedef @void = void
            .typedef @refi64 = ref<@i64>
            .typedef @refvoid = ref<@void>
            .const @c_10 <@i64> = 10
            .const @c_20 <@i64> = 20
            .const @c_42 <@i64> = 42
            .funcsig @sig_i64_i64 = (@i64) -> (@i64)
            .funcdef @throw_fnc VERSION @throw_fnc.v1 <@sig_i64_i64> {
                %blk0(<@i64> %num):
                    %cmpres = SLT <@i64> %num @c_42
                    BRANCH2 %cmpres %blk1() %blk2()
                %blk1():
                    %excobj = NEW <@i64>
                    %iref_obj = GETIREF <@i64> %excobj
                    STORE <@i64> %iref_obj @c_20
                    THROW %excobj
                %blk2():
                    RET (@c_10)
            }
            .funcdef @intermediate_fnc VERSION @intermediate_fnc.v1 <@sig_i64_i64> {
                %blk0(<@i64> %num):
                    %res = CALL <@sig_i64_i64> @throw_fnc (%num)
                    RET (%res)
            }
            .funcdef @test_fnc VERSION @test_fnc.v1 <@sig_i64_i64> {
                %blk0(<@i64> %num):
                    %res = CALL <@sig_i64_i64> @intermediate_fnc (%num) EXC(%blk1(%res) %blk2())
                %blk1(<@i64> %rtn):
                    RET %rtn
                %blk2()[%excobj]:
                    %ri64 = REFCAST <@refvoid @refi64> %excobj
                    %iri64 = GETIREF <@i64> %excobj
                    %obj = LOAD <@i64> %iri64
                    BRANCH %blk1(%obj)
            }
        :type bldr: rpython.rlib.rmu.MuIRBuilder
        :type rmu: rpython.rlib.rmu
        :return: (rmu.MuVM(), rmu.MuCtx, rmu.MuIRBuilder, MuID, MuID)
        """
        void = bldr.gen_sym("@void"); bldr.new_type_void(void)
        i64 = bldr.gen_sym("@i64"); bldr.new_type_int(i64, 64)
        refi64 = bldr.gen_sym("@refi64"); bldr.new_type_ref(refi64, i64)
        refvoid = bldr.gen_sym("@refvoid"); bldr.new_type_ref(refvoid, void)

        c_10 = bldr.gen_sym("@c_10"); bldr.new_const_int(c_10, i64, 10)
        c_20 = bldr.gen_sym("@c_20"); bldr.new_const_int(c_20, i64, 20)
        c_42 = bldr.gen_sym("@c_42"); bldr.new_const_int(c_42, i64, 42)

        sig_i64_i64 = bldr.gen_sym("@sig_i64_i64"); bldr.new_funcsig(sig_i64_i64, [i64], [i64])

        test_fnc = bldr.gen_sym("@test_fnc"); bldr.new_func(test_fnc, sig_i64_i64)
        throw_fnc = bldr.gen_sym("@throw_fnc"); bldr.new_func(throw_fnc, sig_i64_i64)
        intermediate_fnc = bldr.gen_sym("@intermediate_fnc"); bldr.new_func(intermediate_fnc, sig_i64_i64)

        throw_fnc_v1 = bldr.gen_sym("@throw_fnc.v1")
        blk0 = bldr.gen_sym("@throw_fnc.v1.blk0")
        blk1 = bldr.gen_sym("@throw_fnc.v1.blk1")
        blk2 = bldr.gen_sym("@throw_fnc.v1.blk2")

        # blk0
        num = bldr.gen_sym("@throw_fnc.v1.blk0.num")
        cmpres = bldr.gen_sym("@throw_fnc.v1.blk0.cmpres")
        op_slt = bldr.gen_sym(); bldr.new_cmp(op_slt, cmpres, rmu.MuCmpOptr.SLT, i64, num, c_42)
        dst_t = bldr.gen_sym(); bldr.new_dest_clause(dst_t, blk1, [])
        dst_f = bldr.gen_sym(); bldr.new_dest_clause(dst_f, blk2, [])
        op_br2 = bldr.gen_sym(); bldr.new_branch2(op_br2, cmpres, dst_t, dst_f)
        bldr.new_bb(blk0, [num], [i64], rmu.MU_NO_ID, [op_slt, op_br2])

        # blk1
        excobj = bldr.gen_sym("@throw_fnc.v1.blk1.excobj")
        iref_obj = bldr.gen_sym("@throw_fnc.v1.blk1.iref_obj")
        op_new = bldr.gen_sym(); bldr.new_new(op_new, excobj, i64)
        op_getiref = bldr.gen_sym(); bldr.new_getiref(op_getiref, iref_obj, i64, excobj)
        op_store = bldr.gen_sym(); bldr.new_store(op_store, False, rmu.MuMemOrd.NOT_ATOMIC, i64, iref_obj, c_20)
        op_throw = bldr.gen_sym(); bldr.new_throw(op_throw, excobj)
        bldr.new_bb(blk1, [], [], rmu.MU_NO_ID, [op_new, op_getiref, op_store, op_throw])

        # blk2
        op_ret = bldr.gen_sym(); bldr.new_ret(op_ret, [c_10])
        bldr.new_bb(blk2, [], [], rmu.MU_NO_ID, [op_ret])

        bldr.new_func_ver(throw_fnc_v1, throw_fnc, [blk0, blk1, blk2])

        intermediate_fnc_v1 = bldr.gen_sym("@intermediate_fnc.v1")
        blk0 = bldr.gen_sym("@intermediate_fnc.v1.blk0")
        num = bldr.gen_sym("@intermediate_fnc.v1.blk0.num")
        res = bldr.gen_sym("@intermediate_fnc.v1.blk0.res")
        op_call = bldr.gen_sym(); bldr.new_call(op_call, [res], sig_i64_i64, throw_fnc, [num])
        op_ret = bldr.gen_sym(); bldr.new_ret(op_ret, [res])
        bldr.new_bb(blk0, [num], [i64], rmu.MU_NO_ID, [op_call, op_ret])

        bldr.new_func_ver(intermediate_fnc_v1, intermediate_fnc, [blk0])

        test_fnc_v1 = bldr.gen_sym("@test_fnc.v1")
        blk0 = bldr.gen_sym("@test_fnc.v1.blk0")
        blk1 = bldr.gen_sym("@test_fnc.v1.blk1")
        blk2 = bldr.gen_sym("@test_fnc.v1.blk2")

        # blk0
        num = bldr.gen_sym("@test_fnc.v1.blk0.num")
        res = bldr.gen_sym("@test_fnc.v1.blk0.res")
        dst_nor = bldr.gen_sym(); bldr.new_dest_clause(dst_nor, blk1, [res])
        dst_exc = bldr.gen_sym(); bldr.new_dest_clause(dst_exc, blk2, [])
        exc = bldr.gen_sym(); bldr.new_exc_clause(exc, dst_nor, dst_exc)
        op_call = bldr.gen_sym(); bldr.new_call(op_call, [res], sig_i64_i64, intermediate_fnc, [num], exc)
        bldr.new_bb(blk0, [num], [i64], rmu.MU_NO_ID, [op_call])

        # blk1
        rtn = bldr.gen_sym("@test_fnc.v1.blk1.rtn")
        op_ret = bldr.gen_sym(); bldr.new_ret(op_ret, [rtn])
        bldr.new_bb(blk1, [rtn], [i64], rmu.MU_NO_ID, [op_ret])

        # blk2
        excobj = bldr.gen_sym("@test_fnc.v1.blk2.excobj")
        ri64 = bldr.gen_sym("@test_fnc.v1.blk2.ri64")
        iri64 = bldr.gen_sym("@test_fnc.v1.blk2.iri64")
        obj = bldr.gen_sym("@test_fnc.v1.blk2.obj")
        op_refcast = bldr.gen_sym(); bldr.new_conv(op_refcast, ri64, rmu.MuConvOptr.REFCAST, refvoid, refi64, excobj)
        op_getiref = bldr.gen_sym(); bldr.new_getiref(op_getiref, iri64, i64, ri64)
        op_load = bldr.gen_sym(); bldr.new_load(op_load, obj, False, rmu.MuMemOrd.NOT_ATOMIC, i64, iri64)
        dst = bldr.gen_sym(); bldr.new_dest_clause(dst, blk1, [obj])
        op_br = bldr.gen_sym(); bldr.new_branch(op_br, dst)
        bldr.new_bb(blk2, [], [], excobj, [op_refcast, op_getiref, op_load, op_br])

        bldr.new_func_ver(test_fnc_v1, test_fnc, [blk0, blk1, blk2])

        return {
            "test_fnc": test_fnc,
            "test_fnc_sig": sig_i64_i64,
            "result_type": i64,
            "@i64": i64,
            "@refi64": refi64
        }
    (fnp, _), (mu, ctx, bldr) = fncptr_from_py_script(build_test_bundle, None, 'test_fnc', [ctypes.c_int64],
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    mu.current_thread_as_mu_thread(rmu.null(rmu.MuCPtr))
    assert fnp(0) == 20
    assert fnp(100) == 10


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def run_boot_image(entry, output, has_c_main_sig = False, args = [], impl=os.getenv('MU_IMPL', 'zebu'), vmargs = ""):
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    from rpython.translator.interactive import Translation
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    if has_c_main_sig:
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        t = Translation(entry, [rffi.INT, rffi.CCHARPP], backend='mu', impl=impl, codegen='api', vmargs=vmargs)
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        t.driver.disable(['entrypoint_mu'])
    else:
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        t = Translation(entry, None, backend='mu', impl=impl, codegen='api', vmargs=vmargs)
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    t.driver.standalone = True  # force standalone
    t.driver.exe_name = output
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    #t.backendopt(inline=True, mallocs=True)
    #t.view()
    #t.mutype()
    #t.view()

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    db, mugen, epf_name = t.compile_mu()
    exe = py.path.local(output)
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    if impl == 'zebu':
        # zebu
        exe.chmod(stat.S_IRWXU)
        eci = rffi.ExternalCompilationInfo(library_dirs=[str(db.libsupport_path.dirpath())])
        res = platform.execute(str(exe), args, compilation_info=eci)
    else:
        from rpython.rlib.rmu import holstein
        runmu = py.path.local(holstein.mu_dir).join('..', 'tools', 'runmu.sh')
        flags = ['--vmLog=ERROR']
        # log_platform.execute(' '.join([str(runmu)] + flags + [str(exe)] + cmdargs))
        res = platform.execute(runmu, flags + [str(exe)] + args)
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    return res

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# not using this function at the moment
def check(actual, expect):
    c_exit = rffi.llexternal('exit', [rffi.INT], lltype.Void, _nowrapper=True)

    if actual != expect:
        print 'actual: %d' % actual
        print 'expect: %d' % expect
        print 'assertion fails'
        c_exit(rffi.cast(rffi.INT, actual))

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@may_spawn_proc
def test_make_boot_image_simple():
    c_printf = rffi.llexternal('printf', [rffi.CCHARP], rffi.INT, _nowrapper=True)
    c_putchar = rffi.llexternal('putchar', [rffi.CHAR], rffi.INT, _nowrapper=True)
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    c_exit = rffi.llexternal('exit', [rffi.INT], lltype.Void, _nowrapper=True)

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    def pypy_mu_entry(argc, argv):
        for i in range(argc):
            c_printf(argv[i])
            c_putchar('\n')
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        c_exit(rffi.cast(rffi.INT, 0))
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    return 0
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    res = run_boot_image(pypy_mu_entry, '/tmp/test_make_boot_image_mu', True, ['abc', '123'])
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    exe = '/tmp/test_make_boot_image_mu'
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    assert res.returncode == 0, res.err
    assert res.out == '%s\nabc\n123\n' % exe

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@may_spawn_proc
def test_rpytarget_print_argv():
    def main(argv):
        print argv
        return 0

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    res = run_boot_image(main, '/tmp/test_printargv_mu', args = ['abc', '123'])
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    exe = '/tmp/test_printargv_mu'
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    assert res.returncode == 0, res.err
    assert res.out == '[%s, abc, 123]\n' % exe

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@may_spawn_proc
def test_rpython_helloworld():
    def main(argv):
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        print "hello world"
        return 0
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    res = run_boot_image(main, '/tmp/test_helloworld_mu')
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    assert res.returncode == 0, res.err
    assert res.out == 'hello world\n'

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@may_spawn_proc
def test_rpython_print_number():

    def main(argv):
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        print 233
        return 0
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    res = run_boot_image(main, '/tmp/test_print_number_mu')
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    assert res.returncode == 0, res.err
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    assert res.out == '233\n'
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@may_spawn_proc
def test_rpython_print_fmt():
    def main(argv):
        print "hello world %s" % argv[1]
        return 0

    res = run_boot_image(main, '/tmp/test_print_fmt', args = ['mu'])

    assert res.returncode == 0, res.err
    assert res.out == 'hello world mu\n'

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@may_spawn_proc
def test_rpython_main():
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    def main(argv):
        return 0

    res = run_boot_image(main, '/tmp/test_main')

    assert res.returncode == 0, res.err

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@may_spawn_proc
def test_rpytarget_sha1sum():
    john1 = \
'''
In the beginning was the Word, and the Word was with God, and the Word was God.
He was in the beginning with God.
All things were made through him, and without him was not any thing made that was made.
In him was life, and the life was the light of men.
The light shines in the darkness, and the darkness has not overcome it.
'''
    test_file = py.path.local('/tmp/john1.txt')
    with test_file.open('w') as fp:
        fp.write(john1)
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    from rpython.translator.goal.targetsha1sum import entry_point
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    res = run_boot_image(entry_point, '/tmp/test_sha1sum_mu', args=['/tmp/john1.txt'])
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    assert res.returncode == 0, res.err
    assert res.out == '53b45a7e3fb6ccb2d9e43c45cb57b6b56c784def /tmp/john1.txt\n'

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@may_spawn_proc
def test_linked_list():
    class Node:
        def __init__(self, data, nxt):
            self.data = data
            self.nxt = nxt

    l = Node(3, Node(2, Node(1, Node(0, None))))

    def main(argv):
        idx = int(argv[1])
        if idx >= 4:
            raise IndexError
        nd = l
        while idx > 0:
            nd = nd.nxt
            idx -= 1
        print nd.data
        return 0

    res = run_boot_image(main, '/tmp/test_linked_list-mu', args=['2'])
    assert res.returncode == 0, res.err
    assert res.out == '1\n'

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@may_spawn_proc
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def test_rpytarget_richards0():
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    from rpython.translator.goal.richards import entry_point
    def main(argv):
        res, t0, t1 = entry_point(int(argv[1]))
        return 0

    res = run_boot_image(main, '/tmp/test_richards-mu', args=['5'])
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    assert res.returncode == 0, res.err

@may_spawn_proc
def test_rpytarget_richards_measure_time():
    from rpython.translator.goal.richards import entry_point
    def main(argv):
        iterations = int(argv[1])
        res, t0, t1 = entry_point(iterations)
        print 'result =', res
        print 'avg time =', (t1 - t0) / iterations
        return 0

    res = run_boot_image(main, '/tmp/test_richards_measure_time-mu', args=['5'])
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    assert res.returncode == 0, res.err
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@may_spawn_proc
def test_rpython_print_time():
    import time
    def main(argv):
        print time.time()
        return 0

    res = run_boot_image(main, '/tmp/test_print_time')
    assert res.returncode == 0, res.err

@may_spawn_proc
def test_rpython_time_diff():
    import time
    def main(argv):
        t1 = time.time()
        t2 = time.time()
        if t2 >= t1:
            return 0
        else:
            return 1

    res = run_boot_image(main, '/tmp/test_time_diff')
    assert res.returncode == 0, res.err

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@may_spawn_proc
def test_dtoa():
    from rpython.rlib.rdtoa import dtoa
    from rpython.translator.mu.tool.debug_print import print_
    def main(argv):
        print_(dtoa(3.14))
        return 0

    res = run_boot_image(main, '/tmp/test_print_float-mu', args=['2'])
    assert res.returncode == 0, res.err
    assert res.out == '3.14\n'

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@may_spawn_proc
def test_rpytarget_testdicts():
    from rpython.translator.goal.targettestdicts import entry_point

    res = run_boot_image(entry_point, '/tmp/test_testdicts-mu',
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    assert res.returncode == 0, res.err
    assert res.out == '0x5fe\n'

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@may_spawn_proc
def test_nbody():
    """N-body benchmark from the Computer Language Benchmarks Game.

    This is intended to support Unladen Swallow's perf.py. Accordingly, it has been
    modified from the Shootout version:
    - Accept standard Unladen Swallow benchmark options.
    - Run report_energy()/advance() in a loop.
    - Reimplement itertools.combinations() to work with older Python versions.
    """

    # Pulled from http://shootout.alioth.debian.org/u64q/benchmark.php?test=nbody&lang=python&id=4
    # Contributed by Kevin Carson.
    # Modified by Tupteq, Fredrik Johansson, and Daniel Nanz.

    import math

    def combinations(l):
        """Pure-Python implementation of itertools.combinations(l, 2)."""
        result = []
        for x in xrange(len(l) - 1):
            ls = l[x+1:]
            for y in ls:
                result.append((l[x],y))
        return result


    PI = 3.14159265358979323
    SOLAR_MASS = 4 * PI * PI
    DAYS_PER_YEAR = 365.24

    BODIES = {
        'sun': ([0.0, 0.0, 0.0], [0.0, 0.0, 0.0], SOLAR_MASS),

        'jupiter': ([4.84143144246472090e+00,
                     -1.16032004402742839e+00,
                     -1.03622044471123109e-01],
                    [1.66007664274403694e-03 * DAYS_PER_YEAR,
                     7.69901118419740425e-03 * DAYS_PER_YEAR,
                     -6.90460016972063023e-05 * DAYS_PER_YEAR],
                    9.54791938424326609e-04 * SOLAR_MASS),

        'saturn': ([8.34336671824457987e+00,
                    4.12479856412430479e+00,
                    -4.03523417114321381e-01],
                   [-2.76742510726862411e-03 * DAYS_PER_YEAR,
                    4.99852801234917238e-03 * DAYS_PER_YEAR,
                    2.30417297573763929e-05 * DAYS_PER_YEAR],
                   2.85885980666130812e-04 * SOLAR_MASS),

        'uranus': ([1.28943695621391310e+01,
                    -1.51111514016986312e+01,
                    -2.23307578892655734e-01],
                   [2.96460137564761618e-03 * DAYS_PER_YEAR,
                    2.37847173959480950e-03 * DAYS_PER_YEAR,
                    -2.96589568540237556e-05 * DAYS_PER_YEAR],
                   4.36624404335156298e-05 * SOLAR_MASS),

        'neptune': ([1.53796971148509165e+01,
                     -2.59193146099879641e+01,
                     1.79258772950371181e-01],
                    [2.68067772490389322e-03 * DAYS_PER_YEAR,
                     1.62824170038242295e-03 * DAYS_PER_YEAR,
                     -9.51592254519715870e-05 * DAYS_PER_YEAR],
                    5.15138902046611451e-05 * SOLAR_MASS) }


    SYSTEM = list(BODIES.values())
    PAIRS = combinations(SYSTEM)

    def advance(dt, n, bodies=SYSTEM, pairs=PAIRS):
        for i in xrange(n):
            for (([x1, y1, z1], v1, m1),
                 ([x2, y2, z2], v2, m2)) in pairs:
                dx = x1 - x2
                dy = y1 - y2
                dz = z1 - z2
                mag = dt * math.pow((dx * dx + dy * dy + dz * dz), (-1.5))
                b1m = m1 * mag
                b2m = m2 * mag
                v1[0] -= dx * b2m
                v1[1] -= dy * b2m
                v1[2] -= dz * b2m
                v2[0] += dx * b1m
                v2[1] += dy * b1m
                v2[2] += dz * b1m
            for (r, [vx, vy, vz], m) in bodies:
                r[0] += dt * vx
                r[1] += dt * vy
                r[2] += dt * vz

    def report_energy(bodies=SYSTEM, pairs=PAIRS, e=0.0):
        for (((x1, y1, z1), v1, m1),
             ((x2, y2, z2), v2, m2)) in pairs:
            dx = x1 - x2
            dy = y1 - y2
            dz = z1 - z2
            e -= (m1 * m2) / math.pow((dx * dx + dy * dy + dz * dz), 0.5)
        for (r, [vx, vy, vz], m) in bodies:
            e += m * (vx * vx + vy * vy + vz * vz) / 2.
        return e

    def offset_momentum(ref, bodies=SYSTEM, px=0.0, py=0.0, pz=0.0):
        for (r, [vx, vy, vz], m) in bodies:
            px -= vx * m
            py -= vy * m
            pz -= vz * m
        (r, v, m) = ref
        v[0] = px / m
        v[1] = py / m
        v[2] = pz / m

    def test_nbody(iterations):
        offset_momentum(BODIES['sun'])
        e = report_energy()
        for i in xrange(iterations):
            advance(0.01, 20000)
            e = report_energy()
        return e

    def main(argv):
        print test_nbody(int(argv[1]))
        return 0

    res = run_boot_image(main, '/tmp/test_nbody-mu', args=['5'])
    assert res.returncode == 0, res.err
    assert res.out == '-0.169080\n'


@may_spawn_proc
def test_float():
    from math import sin, cos, sqrt

    class Point(object):

        def __init__(self, i):
            self.x = x = sin(i)
            self.y = cos(i) * 3
            self.z = (x * x) / 2

        def __repr__(self):
            return "<Point: x=%s, y=%s, z=%s>" % (self.x, self.y, self.z)

        def normalize(self):
            x = self.x
            y = self.y
            z = self.z
            norm = sqrt(x * x + y * y + z * z)
            self.x /= norm
            self.y /= norm
            self.z /= norm

        def maximize(self, other):
            self.x = self.x if self.x > other.x else other.x
            self.y = self.y if self.y > other.y else other.y
            self.z = self.z if self.z > other.z else other.z
            return self


    def maximize(points):
        next = points[0]
        for p in points[1:]:
            next = next.maximize(p)
        return next

    def benchmark(n):
        points = [None] * n
        for i in xrange(n):
            points[i] = Point(i)
        for p in points:
            p.normalize()
        return maximize(points)

    POINTS = 100

    def main(argv):
        o = None
        for i in xrange(int(argv[1])):
            o = benchmark(POINTS)
        if o:
            print (o.x, o.y, o.z)
        else:
            print 'NULL'
        return 0

    res = run_boot_image(main, '/tmp/test_float-mu', args=['5'])
    assert res.returncode == 0, res.err
    assert res.out == '(0.893876, 1.000000, 0.447179)\n'


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if __name__ == '__main__':
    import argparse
    parser = argparse.ArgumentParser()
    parser.add_argument('testfnc', help="Test function name")
    opts = parser.parse_args()

    globals()[opts.testfnc]()