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Use unlocked I/O for a minor performance improvement on hosts like

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GNU/Linux and Solaris that support unlocked I/O.  The basic idea
is to use the gnlib unlocked-io module, and to prefer putc and
puts to printf when either will work (since the latter doesn't
come in an unlocked flavor).
* bootstrap (gnulib_modules): Add unlocked-io.
* data/c.m4 (yysymprint): Prefer puts and putc to printf.
* data/glr.c (YYFPUTC, YYFPUTS, YYDPUTS): New macros.
Prefer them to YYFPRINTF and YYDPRINTF if either will do,
and similarly for puts and putc and printf.
* data/yacc.c: Likewise.
* lib/bitset.c (bitset_print): Likewise.
* lib/bitset.h [USE_UNLOCKED_IO]: Include unlocked-io.h.
* lib/bitsetv.c (bitsetv_dump, debug-bitsetv): Prefer putc and puts
to printf.
* lib/lbitset.c (debug_lbitset): Likewise.
* src/closure.c (print_firsts, print_fderives): Likewise.
* src/gram.c (grammar_dump): Likewise.
* src/lalr.c (look_ahead_tokens_print): Likewise.
* src/output.c (escaped_output): Likewise.
(user_actions_output): Coalesce two printfs.
* src/parse-gram.h (%printer): Prefer putc and puts to printf.
* src/reduce.c (reduce_print): Likewise.
* src/state.c (state_rule_look_ahead_tokens_print): Likewise.
* src/system.h: Include unlocked-io.h rathe than stdio.h.
This commit is contained in:
Paul Eggert
2005-10-02 21:24:12 +00:00
parent edb8f44f06
commit fb9c0b3360
17 changed files with 118 additions and 60 deletions
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19
src/gram.c
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@@ -247,23 +247,24 @@ grammar_dump (FILE *out, const char *title)
ntokens, nvars, nsyms, nrules, nritems);
fprintf (out, "Variables\n---------\n\n");
fputs (("Variables\n---------\n\n"
"Value Sprec Sassoc Tag\n"),
out);
{
symbol_number i;
fprintf (out, "Value Sprec Sassoc Tag\n");
for (i = ntokens; i < nsyms; i++)
fprintf (out, "%5d %5d %5d %s\n",
i,
symbols[i]->prec, symbols[i]->assoc,
symbols[i]->tag);
fprintf (out, "\n\n");
}
fputs ("\n\n", out);
fprintf (out, "Rules\n-----\n\n");
fputs (("Rules\n-----\n\n"
"Num (Prec, Assoc, Useful, Ritem Range) Lhs -> Rhs (Ritem range) [Num]\n"),
out);
{
rule_number i;
fprintf (out, "Num (Prec, Assoc, Useful, Ritem Range) Lhs -> Rhs (Ritem range) [Num]\n");
for (i = 0; i < nrules + nuseless_productions; i++)
{
rule *rule_i = &rules[i];
@@ -287,9 +288,9 @@ grammar_dump (FILE *out, const char *title)
fprintf (out, " [%d]\n", item_number_as_rule_number (*rp));
}
}
fprintf (out, "\n\n");
fputs ("\n\n", out);
fprintf (out, "Rules interpreted\n-----------------\n\n");
fputs ("Rules interpreted\n-----------------\n\n", out);
{
rule_number r;
for (r = 0; r < nrules + nuseless_productions; r++)
@@ -298,7 +299,7 @@ grammar_dump (FILE *out, const char *title)
rule_print (&rules[r], out);
}
}
fprintf (out, "\n\n");
fputs ("\n\n", out);
}