gcc/testsuite/gcc.dg/tree-ssa/vrp34.c


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/* { dg-do compile } */
/* { dg-options "-O2 -fdump-tree-vrp1" } */

void bar (void);

void
foo (int a)
{
  switch (a)
    {
    case 4:
      if (a >= 3)
        if (a <= 5)
          bar ();
    }
}

/* Both ifs should be optimized (and switch statement will be the only if
   in the function).  */
/* { dg-final { scan-tree-dump-times "if \\\(" 1 "vrp1" } } */