/* { dg-do compile } */
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/* { dg-do compile } */
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/* { dg-options "-O2 -ftree-loop-distribution" } */
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/* { dg-options "-O2 -ftree-loop-distribution" } */
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#define NULL ((void *)0)
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#define NULL ((void *)0)
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__extension__ typedef __SIZE_TYPE__ size_t;
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__extension__ typedef __SIZE_TYPE__ size_t;
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extern void *foo(size_t nelem, size_t elsize);
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extern void *foo(size_t nelem, size_t elsize);
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extern void bar (char*, ...);
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extern void bar (char*, ...);
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typedef struct alt_state *alt_state_t;
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typedef struct alt_state *alt_state_t;
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typedef struct state *state_t;
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typedef struct state *state_t;
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struct alt_state
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struct alt_state
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{
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{
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alt_state_t next_alt_state;
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alt_state_t next_alt_state;
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};
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};
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static alt_state_t first_free_alt_state = NULL;
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static alt_state_t first_free_alt_state = NULL;
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static void
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static void
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free_alt_state (alt_state_t alt_state)
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free_alt_state (alt_state_t alt_state)
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{
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{
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if (alt_state == NULL)
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if (alt_state == NULL)
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return;
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return;
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alt_state->next_alt_state = first_free_alt_state;
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alt_state->next_alt_state = first_free_alt_state;
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first_free_alt_state = alt_state;
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first_free_alt_state = alt_state;
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}
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}
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/* The function frees list started with node ALT_STATE_LIST. */
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/* The function frees list started with node ALT_STATE_LIST. */
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static void
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static void
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free_alt_states (alt_state_t alt_states_list)
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free_alt_states (alt_state_t alt_states_list)
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{
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{
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alt_state_t curr_alt_state;
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alt_state_t curr_alt_state;
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alt_state_t next_alt_state;
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alt_state_t next_alt_state;
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for (curr_alt_state = alt_states_list;
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for (curr_alt_state = alt_states_list;
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curr_alt_state != NULL;
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curr_alt_state != NULL;
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curr_alt_state = next_alt_state)
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curr_alt_state = next_alt_state)
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{
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{
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next_alt_state = curr_alt_state->next_alt_state;
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next_alt_state = curr_alt_state->next_alt_state;
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free_alt_state (curr_alt_state);
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free_alt_state (curr_alt_state);
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}
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}
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}
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}
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int
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int
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main (void)
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main (void)
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{
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{
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int i;
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int i;
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alt_state_t state, act_state;
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alt_state_t state, act_state;
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act_state = state = foo (1, sizeof (struct alt_state));
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act_state = state = foo (1, sizeof (struct alt_state));
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for (i = 0; i < 2; i ++)
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for (i = 0; i < 2; i ++)
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{
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{
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act_state->next_alt_state = foo (1, sizeof (struct alt_state));
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act_state->next_alt_state = foo (1, sizeof (struct alt_state));
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act_state = act_state->next_alt_state;
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act_state = act_state->next_alt_state;
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}
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}
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free_alt_states (state);
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free_alt_states (state);
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for (act_state = first_free_alt_state;
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for (act_state = first_free_alt_state;
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act_state != NULL;
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act_state != NULL;
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act_state = act_state->next_alt_state)
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act_state = act_state->next_alt_state)
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bar ("going from %p to %p\n", act_state, act_state->next_alt_state);
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bar ("going from %p to %p\n", act_state, act_state->next_alt_state);
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return 0;
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return 0;
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}
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}
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