Subversion Repositories openrisc_2011-10-31

/* { dg-do compile } */

/* { dg-options "-Os -fdump-tree-sink-stats" } */

typedef short int16_t;

typedef unsigned char uint8_t;

void foo(int16_t runs[], uint8_t alpha[], int x, int count)

{

    int16_t* next_runs = runs + x;

    uint8_t*  next_alpha = alpha + x;

    while (x > 0)

    {

        int n = runs[0];

        if (x < n)

        {

            alpha[x] = alpha[0];

            runs[0] = (int16_t)(x);

            runs[x] = (int16_t)(n - x);

            break;

        }

        runs += n;

        alpha += n;

        x -= n;

    }

    runs = next_runs;

    alpha = next_alpha;

    x = count;

   for (;;)

    {

        int n = runs[0];

        if (x < n)

        {

            alpha[x] = alpha[0];

            break;

        }

        x -= n;

        runs += n;

   }

}

/* We should not sink the next_runs = runs + x calculation after the loop.  */

/* { dg-final { scan-tree-dump-times "Sunk statements:" 0 "sink" } } */

/* { dg-final { cleanup-tree-dump "sink" } } */