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coccinelle: deref_null: avoid useless computation 

The effect of the rules ifm1, pr11, and pr12 is only used in the final rule,
which depends on context && !org && !report.  Thus these rules should only
be performed in those circumstances.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Julia Lawall 2018-02-03 08:44:58 +01:00 committed by Masahiro Yamada
parent e856f3a7d7
commit a2b0fe7435
1 changed files with 3 additions and 3 deletions
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6
scripts/coccinelle/null/deref_null.cocci
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@ -212,7 +212,7 @@ else S3
// The following three rules are duplicates of ifm, pr1 and pr2 respectively.
// It is need because the previous rule as already made a "change".
@ifm1@
@ifm1 depends on context && !org && !report@
expression *E;
statement S1,S2;
position p1;
@ -220,7 +220,7 @@ position p1;
if@p1 ((E == NULL && ...) || ...) S1 else S2
@pr11 expression@
@pr11 depends on context && !org && !report expression@
expression *ifm1.E;
identifier f;
position p1;
@ -228,7 +228,7 @@ position p1;
(E != NULL && ...) ? <+...E->f@p1...+> : ...
@pr12 expression@
@pr12 depends on context && !org && !report expression@
expression *ifm1.E;
identifier f;
position p2;