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* src/lalr.c (initialize_F): Improve variable locality.

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Avoid variables used as mere abbreviations.
This commit is contained in:
Akim Demaille
2001-12-05 09:17:34 +00:00
parent e4ef7aa1c9
commit 76c97f6a39
2 changed files with 17 additions and 26 deletions
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5
ChangeLog
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@@ -1,3 +1,8 @@
2001-12-05 Akim Demaille <akim@epita.fr>
* src/lalr.c (initialize_F): Improve variable locality.
Avoid variables used as mere abbreviations.
2001-12-05 Akim Demaille <akim@epita.fr>
* src/derives.c (print_derives): Display the ruleno.

38
src/lalr.c
View File

@@ -356,24 +356,14 @@ map_goto (int state, int symbol)
static void
initialize_F (void)
{
short **reads = XCALLOC (short *, ngotos);
short *edge = XCALLOC (short, ngotos + 1);
int nedges = 0;
int i;
int j;
short *edge;
unsigned *rowp;
short *rp;
short **reads;
int nedges;
int symbol;
int nwords;
nwords = ngotos * tokensetsize;
F = XCALLOC (unsigned, nwords);
F = XCALLOC (unsigned, ngotos * tokensetsize);
reads = XCALLOC (short *, ngotos);
edge = XCALLOC (short, ngotos + 1);
nedges = 0;
rowp = F;
for (i = 0; i < ngotos; i++)
{
int stateno = to_state[i];
@@ -381,34 +371,30 @@ initialize_F (void)
if (sp)
{
int j;
for (j = 0; j < sp->nshifts; j++)
{
symbol = state_table[sp->shifts[j]].accessing_symbol;
int symbol = state_table[sp->shifts[j]].accessing_symbol;
if (ISVAR (symbol))
break;
SETBIT (rowp, symbol);
SETBIT (F + i * tokensetsize, symbol);
}
for (; j < sp->nshifts; j++)
{
symbol = state_table[sp->shifts[j]].accessing_symbol;
int symbol = state_table[sp->shifts[j]].accessing_symbol;
if (nullable[symbol])
edge[nedges++] = map_goto (stateno, symbol);
}
if (nedges)
{
reads[i] = rp = XCALLOC (short, nedges + 1);
for (j = 0; j < nedges; j++)
rp[j] = edge[j];
rp[nedges] = -1;
reads[i] = XCALLOC (short, nedges + 1);
shortcpy (reads[i], edge, nedges);
reads[i][nedges] = -1;
nedges = 0;
}
}
rowp += tokensetsize;
}
digraph (reads);