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Performance improvements

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This commit is contained in:
Boris Kolpackov 2009-10-05 14:40:18 +00:00
parent acbdc33e1c
commit 174e910a1d
2 changed files with 16 additions and 4 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
2009-10-05 Boris Kolpackov <boris@codesynthesis.com>
* implicit.c (pattern_search): Initialize file variables only
if we need to parse a rule that requires the second expansion.
2009-10-03 Paul Smith <psmith@gnu.org>
* make.h: Include <alloca.h> even on systems where __GNUC__ is

15
implicit.c
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@ -247,6 +247,9 @@ pattern_search (struct file *file, int archive,
/* Nonzero if should consider intermediate files as dependencies. */
int intermed_ok;
/* Nonzero if we have initialized file variables for this target. */
int file_vars_initialized = 0;
/* Nonzero if we have matched a pattern-rule target
that is not just `%'. */
int specific_rule_matched = 0;
@ -431,10 +434,6 @@ pattern_search (struct file *file, int archive,
}
}
/* We are going to do second expansion so initialize file variables
for the rule. */
initialize_file_variables (file, 0);
/* Try each rule once without intermediate files, then once with them. */
for (intermed_ok = 0; intermed_ok < 2; ++intermed_ok)
{
@ -613,6 +612,14 @@ pattern_search (struct file *file, int archive,
add_dir = 1;
}
/* Initialize file variables if we haven't already
done so. */
if (!file_vars_initialized)
{
initialize_file_variables (file, 0);
file_vars_initialized = 1;
}
/* Set file variables. Note that we cannot do it once at the
beginning of the function because the stem value changes
for each rule. */