diffcore-rename: avoid unnecessary strdup'ing in break_idx
The keys of break_idx are strings from the diff_filepairs of
diff_queued_diff. break_idx is only used in location_rename_dst(), and
that usage is always before any free'ing of the pairs (and thus the
strings in the pairs). As such, there is no need to strdup these keys;
we can just reuse the existing strings as-is.
The merge logic doesn't make use of break detection, so this does not
affect the performance of any of my testcases. It was just a minor
unrelated optimization noted in passing while looking at the code.
Signed-off-by: Elijah Newren <newren@gmail.com>
Reviewed-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/diffcore-rename.c b/diffcore-rename.c
index dfbe65c..9c0bc5a 100644
--- a/diffcore-rename.c
+++ b/diffcore-rename.c
@@ -54,7 +54,7 @@ static void register_rename_src(struct diff_filepair *p)
if (p->broken_pair) {
if (!break_idx) {
break_idx = xmalloc(sizeof(*break_idx));
- strintmap_init(break_idx, -1);
+ strintmap_init_with_options(break_idx, -1, NULL, 0);
}
strintmap_set(break_idx, p->one->path, rename_dst_nr);
}
