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genautomata.c (add_arc): Return void. 

* genautomata.c (add_arc): Return void.  All callers changed.
	(make_automaton): Remove dead code.

From-SVN: r176179
This commit is contained in:
Bernd Schmidt 2011-07-11 19:41:11 +00:00 committed by Bernd Schmidt
parent 7263c6d715
commit c0b6224a6e
2 changed files with 10 additions and 15 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2011-07-11 Bernd Schmidt <bernds@codesourcery.com>
* genautomata.c (add_arc): Return void. All callers changed.
(make_automaton): Remove dead code.
2011-07-11 Richard Henderson <rth@redhat.com>
* dwarf2cfi.c (DW_STACK_POINTER_REGNUM): New.

20
gcc/genautomata.c
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@ -3908,16 +3908,16 @@ find_arc (state_t from_state, state_t to_state, ainsn_t insn)
return NULL;
}
/* The function adds arc from FROM_STATE to TO_STATE marked by AINSN.
The function returns added arc (or already existing arc). */
static arc_t
/* The function adds arc from FROM_STATE to TO_STATE marked by AINSN,
unless such an arc already exists. */
static void
add_arc (state_t from_state, state_t to_state, ainsn_t ainsn)
{
arc_t new_arc;
new_arc = find_arc (from_state, to_state, ainsn);
if (new_arc != NULL)
return new_arc;
return;
if (first_free_arc == NULL)
{
#ifndef NDEBUG
@ -3940,7 +3940,6 @@ add_arc (state_t from_state, state_t to_state, ainsn_t ainsn)
from_state->first_out_arc = new_arc;
from_state->num_out_arcs++;
new_arc->next_arc_marked_by_insn = NULL;
return new_arc;
}
/* The function returns the first arc starting from STATE. */
@ -5464,7 +5463,6 @@ make_automaton (automaton_t automaton)
state_t start_state;
state_t state2;
ainsn_t advance_cycle_ainsn;
arc_t added_arc;
VEC(state_t, heap) *state_stack = VEC_alloc(state_t, heap, 150);
int states_n;
reserv_sets_t reservs_matter = form_reservs_matter (automaton);
@ -5489,7 +5487,6 @@ make_automaton (automaton_t automaton)
{
/* We process alt_states in the same order as they are
present in the description. */
added_arc = NULL;
for (alt_state = ainsn->alt_states;
alt_state != NULL;
alt_state = alt_state->next_alt_state)
@ -5507,18 +5504,11 @@ make_automaton (automaton_t automaton)
if (progress_flag && states_n % 100 == 0)
fprintf (stderr, ".");
}
added_arc = add_arc (state, state2, ainsn);
add_arc (state, state2, ainsn);
if (!ndfa_flag)
break;
}
}
if (!ndfa_flag && added_arc != NULL)
{
for (alt_state = ainsn->alt_states;
alt_state != NULL;
alt_state = alt_state->next_alt_state)
state2 = alt_state->state;
}
}
else
advance_cycle_ainsn = ainsn;