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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [gcc/] [testsuite/] [gcc.c-torture/] [execute/] [pr45034.c] - Blame information for rev 688

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Line No. Rev Author Line
1 688 jeremybenn
extern void abort (void);
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static void fixnum_neg(signed char x, signed char *py, int *pv)
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{
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  unsigned char ux, uy;
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  ux = (unsigned char)x;
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  uy = -ux;
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  *py = (uy <= 127) ? (signed char)uy : (-(signed char)(255 - uy) - 1);
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  *pv = (x == -128) ? 1 : 0;
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}
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void __attribute__((noinline)) foo(int x, int y, int v)
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{
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  if (y < -128 || y > 127)
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    abort();
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}
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int test_neg(void)
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{
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  signed char x, y;
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  int v, err;
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  err = 0;
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  x = -128;
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  for (;;) {
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      fixnum_neg(x, &y, &v);
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      foo((int)x, (int)y, v);
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      if ((v && x != -128) || (!v && x == -128))
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        ++err;
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      if (x == 127)
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        break;
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      ++x;
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  }
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  return err;
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}
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int main(void)
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{
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  if (sizeof (char) != 1)
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    return 0;
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  if (test_neg() != 0)
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    abort();
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  return 0;
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}
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