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24-fyi-var-locality.patch
From: |
Akim Demaille |
Subject: |
24-fyi-var-locality.patch |
Date: |
Mon, 19 Nov 2001 10:03:38 +0100 |
I'm trying to understand why we don't have the items of state 0 in
neither the report, nor the graph.
Index: ChangeLog
from Akim Demaille <address@hidden>
* src/print_graph.c (print_core): Better locality of variables.
* src/print.c (print_core): Likewise.
Index: src/print_graph.c
--- src/print_graph.c Sat, 17 Nov 2001 15:05:27 +0100 akim
+++ src/print_graph.c Sat, 17 Nov 2001 15:17:56 +0100 akim
@@ -40,22 +40,16 @@
print_core (int state, struct obstack *node_obstack)
{
int i;
- int k;
- int rule;
- core *statep;
- short *sp;
- short *sp1;
+ core *statep = state_table[state].state;
- statep = state_table[state].state;
- k = statep->nitems;
-
- if (k == 0)
+ if (!statep->nitems)
return;
- for (i = 0; i < k; i++)
+ for (i = 0; i < statep->nitems; i++)
{
- if (i)
- obstack_1grow (node_obstack, '\n');
+ short *sp;
+ short *sp1;
+ int rule;
sp1 = sp = ritem + statep->items[i];
@@ -64,6 +58,8 @@
rule = -(*sp);
+ if (i)
+ obstack_1grow (node_obstack, '\n');
obstack_fgrow1 (node_obstack, "%d: ", rule);
obstack_fgrow1 (node_obstack, " %s -> ",
tags[rule_table[rule].lhs]);
@@ -73,8 +69,8 @@
obstack_1grow (node_obstack, '.');
- while (*sp > 0)
- obstack_fgrow1 (node_obstack, " %s", tags[*sp++]);
+ for (/* Nothing */; *sp > 0; ++sp)
+ obstack_fgrow1 (node_obstack, " %s", tags[*sp]);
}
}
Index: src/print.c
--- src/print.c Fri, 16 Nov 2001 01:00:46 +0100 akim
+++ src/print.c Sat, 17 Nov 2001 15:14:59 +0100 akim
@@ -48,20 +48,17 @@
print_core (FILE *out, int state)
{
int i;
- int k;
- int rule;
- core *statep;
- short *sp;
- short *sp1;
+ core *statep = state_table[state].state;
- statep = state_table[state].state;
- k = statep->nitems;
-
- if (k == 0)
+ if (!statep->nitems)
return;
- for (i = 0; i < k; i++)
+ for (i = 0; i < statep->nitems; i++)
{
+ short *sp;
+ short *sp1;
+ int rule;
+
sp1 = sp = ritem + statep->items[i];
while (*sp > 0)
@@ -71,17 +68,12 @@
fprintf (out, " %s -> ", tags[rule_table[rule].lhs]);
for (sp = ritem + rule_table[rule].rhs; sp < sp1; sp++)
- {
- fprintf (out, "%s ", tags[*sp]);
- }
+ fprintf (out, "%s ", tags[*sp]);
fputc ('.', out);
- while (*sp > 0)
- {
- fprintf (out, " %s", tags[*sp]);
- sp++;
- }
+ for (/* Nothing */; *sp > 0; ++sp)
+ fprintf (out, " %s", tags[*sp]);
fprintf (out, _(" (rule %d)"), rule);
fputc ('\n', out);
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