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/* { dg-do compile } */

/* { dg-options "-O2 -fdump-tree-reassoc1" } */

unsigned int test1 (unsigned int x, unsigned int y, unsigned int z,

                    unsigned int weight)

{

  unsigned int tmp1 = x * weight;

  unsigned int tmp2 = y * weight;

  unsigned int tmp3 = (x - y) * weight;

  return tmp1 + (tmp2 + tmp3);

}

unsigned int test2 (unsigned int x, unsigned int y, unsigned int z,

                    unsigned int weight)

{

  unsigned int tmp1 = x * weight;

  unsigned int tmp2 = y * weight * weight;

  unsigned int tmp3 = z * weight * weight * weight;

  return tmp1 + tmp2 + tmp3;

}

/* There should be one multiplication left in test1 and three in test2.  */

/* { dg-final { scan-tree-dump-times "\\\*" 4 "reassoc1" } } */

/* { dg-final { cleanup-tree-dump "reassoc1" } } */