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coccinelle: convert hashcpy() with null_sha1 to hashclr()

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hashcpy with null_sha1 as the source is equivalent to hashclr.  In
addition to being simpler, using hashclr may give the compiler a chance
to optimize better.  Convert instances of hashcpy with the source
argument of null_sha1 to hashclr.

This transformation was implemented using the following semantic patch:

@@
expression E1;
@@
-hashcpy(E1, null_sha1);
+hashclr(E1);

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
brian m. carlson
2016-06-24 23:09:21 +00:00
committed by Junio C Hamano
parent db1d80b8fa
commit f449198e58
5 changed files with 6 additions and 6 deletions
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2
submodule-config.c
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@ -368,7 +368,7 @@ static int gitmodule_sha1_from_commit(const unsigned char *commit_sha1,
int ret = 0;
if (is_null_sha1(commit_sha1)) {
hashcpy(gitmodules_sha1, null_sha1);
hashclr(gitmodules_sha1);
return 1;
}