mirror of
https://github.com/autc04/Retro68.git
synced 2025-03-02 10:30:00 +00:00
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
unsigned short a[256];
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__attribute__((noinline, noclone)) void
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bar (void *x, unsigned short z)
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{
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unsigned short *y = (unsigned short *) x;
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if (y < &a[5] || y > &a[222] || y == &a[124])
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__builtin_abort ();
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*y += z;
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}
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__attribute__((noinline, noclone)) void
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foo (void *qx, void *rx, void *sx, int n)
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{
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unsigned short (*q)[n], (*r)[n], (*s)[n], (*p)[n];
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q = (typeof (q)) qx;
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r = (typeof (r)) rx;
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s = (typeof (s)) sx;
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#pragma omp for
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for (p = q; p != r; p++)
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bar (p, 1);
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#pragma omp for
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for (p = s; p != r; p--)
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bar (p, 2);
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#pragma omp for
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for (p = q; p != r; p = p + 1)
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bar (p, 4);
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#pragma omp for
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for (p = s; p != r; p = p - 1)
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bar (p, 8);
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#pragma omp for
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for (p = q; p != r; p = 1 + p)
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bar (p, 16);
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#pragma omp for
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for (p = s; p != r; p = -1 + p)
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bar (p, 32);
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#pragma omp for
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for (p = q; p != r; p += 1)
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bar (p, 64);
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#pragma omp for
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for (p = s; p != r; p -= 1)
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bar (p, 128);
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}
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__attribute__((noinline, noclone)) void
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baz (void *qx, void *rx, void *sx, int n)
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{
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unsigned short (*q)[n], (*r)[n], (*s)[n], (*p)[n];
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q = (typeof (q)) qx;
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r = (typeof (r)) rx;
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s = (typeof (s)) sx;
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#pragma omp for
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for (p = q; p < r; p++)
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bar (p, 256);
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#pragma omp for
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for (p = s; p > r; p--)
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bar (p, 512);
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#pragma omp for
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for (p = q; p < r; p = p + 1)
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bar (p, 1024);
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#pragma omp for
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for (p = s; p > r; p = p - 1)
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bar (p, 2048);
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#pragma omp for
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for (p = q; p < r; p = 1 + p)
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bar (p, 4096);
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#pragma omp for
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for (p = s; p > r; p = -1 + p)
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bar (p, 8192);
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#pragma omp for
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for (p = q; p < r; p += 1)
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bar (p, 16384);
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#pragma omp for
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for (p = s; p > r; p -= 1)
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bar (p, 32768U);
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}
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int
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main ()
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{
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int i;
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volatile int j = 7;
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#pragma omp parallel
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{
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foo (&a[5 + (j - 7)], &a[124 + (j - 7)], &a[222 + (j - 7)], j);
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baz (&a[5 + (j - 7)], &a[124 + (j - 7)], &a[222 + (j - 7)], j);
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}
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for (i = 0; i < 256; i++)
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if (i < 5 || i > 222 || i == 124 || ((i - 5) % 7) != 0)
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{
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if (a[i])
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__builtin_abort ();
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}
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else if (i < 124 && a[i] != 1 + 4 + 16 + 64 + 256 + 1024 + 4096 + 16384)
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__builtin_abort ();
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else if (i > 124 && a[i] != 2 + 8 + 32 + 128 + 512 + 2048 + 8192 + 32768U)
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__builtin_abort ();
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return 0;
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}
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