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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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8
src/closure.c
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@@ -75,7 +75,7 @@ print_firsts (void)
{
symbol_number i, j;
fprintf (stderr, "FIRSTS\n");
fputs ("FIRSTS\n", stderr);
for (i = ntokens; i < nsyms; i++)
{
bitset_iterator iter;
@@ -86,7 +86,7 @@ print_firsts (void)
symbols[j + ntokens]->tag);
}
}
fprintf (stderr, "\n\n");
fputs ("\n\n", stderr);
}
@@ -96,7 +96,7 @@ print_fderives (void)
int i;
rule_number r;
fprintf (stderr, "FDERIVES\n");
fputs ("FDERIVES\n", stderr);
for (i = ntokens; i < nsyms; i++)
{
bitset_iterator iter;
@@ -107,7 +107,7 @@ print_fderives (void)
rule_rhs_print (&rules[r], stderr);
}
}
fprintf (stderr, "\n\n");
fputs ("\n\n", stderr);
}
/*------------------------------------------------------------------.