tree 65eb26573939cfa05f5f446bd7e4c05b36389a0f
parent 32d0572a75c81a2c70394f9e110ca080b9a733b1
author Julia Lawall <Julia.Lawall@lip6.fr> 1526885939 +0200
committer Masahiro Yamada <yamada.masahiro@socionext.com> 1526997623 +0900

coccinelle: deref_null: improve performance

Move rules looking for some special cases of safe dereferences before
the collection of NULL-tested values.  The special cases are fairly
rare, but somewhat costly to find, because isomorphisms create many
variants of the rules.  There is thus no need to search for them over
and over for each NULL tested expression.  Collecting them just once
is sufficient and more efficient.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>