/* Number of natural loops in the function. */
unsigned num;
- /* Maximum nested loop level in the function. */
- unsigned levels;
-
/* Array of natural loop descriptors (scanning this array in reverse order
will find the inner loops before their enclosing outer loops). */
struct loop *array;
/* The above array is unused in new loop infrastructure and is kept only for
purposes of the old loop optimizer. Instead we store just pointers to
- loops here. */
+ loops here.
+ Note that a loop in this array may actually be NULL, if the loop
+ has been removed and the entire loops structure has not been
+ recomputed since that time. */
struct loop **parray;
/* Pointer to root of loop hierarchy tree. */
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