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/* { dg-do compile } */

/* { dg-options "-Wuninitialized -O2" } */

int g;

void bar();

void blah(int);

int foo (int n, int m, int r, int t)

{

  int flag = 0;

  int v;

  if (t)

    {

      if (n)

        {

          v = r;    /* init path 1 */

          flag = 1;

        }

      if (m) g++;

      else bar();

      if (flag)  /* properly  guarded */

        blah(v); /* { dg-bogus "uninitialized" "bogus warning" } */

    }

  else

    {

      v = r+1; /* init path 2 */

      flag = 2;

    }

  if (m) g++;

  else bar();

  if (g)   /* guard can not be determined statically to be safe */

    blah(v); /* { dg-warning "uninitialized" "real warning" } */

  return 0;

}