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add coccinelle rule for accessor calls in loops #7959

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add coccinelle rule for accessor calls in loops #7959

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ceb6628
add coccinelle rule for accessor calls in loops
m-muecke Oct 22, 2026
5fcd3dc
narrow accessor-in-loop coccinelle rule
m-muecke Nov 9, 2026
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79 changes: 79 additions & 0 deletions .ci/linters/cocci/accessor_call_in_loop.cocci
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Original file line number Diff line number Diff line change
@@ -0,0 +1,79 @@
/* Hoist accessor calls on loop-invariant variables out of loops */
@accessed@
identifier acc = {RAW, RAW_RO, LOGICAL, LOGICAL_RO, INTEGER, INTEGER_RO, REAL, REAL_RO, COMPLEX, COMPLEX_RO, STRING_PTR_RO};
idexpression x;
@@
acc(x)
@@
identifier acc = {RAW, RAW_RO, LOGICAL, LOGICAL_RO, INTEGER, INTEGER_RO, REAL, REAL_RO, COMPLEX, COMPLEX_RO, STRING_PTR_RO};
idexpression accessed.x;
expression I, e;
constant C;
statement S;
@@
(
for (...;...;x = e) S
|
for (...;...;...) {
... when any
x = e
... when any
}
|
while (...) {
... when any
x = e
... when any
}
|
do {
... when any
x = e
... when any
} while (...);
|
for (...;...;...) {
... when any
(
acc(x)[C]
|
* acc(x)[I]
)
... when any
}
|
while (...) {
... when any
(
acc(x)[C]
|
* acc(x)[I]
)
... when any
}
|
do {
... when any
(
acc(x)[C]
|
* acc(x)[I]
)
... when any
} while (...);
|
for (...; <+... acc(x)[C] ...+>; ...) S
|
while (<+... acc(x)[C] ...+>) S
|
for (...;
<+...
* acc(x)[I]
...+>;
...) S
|
while (
<+...
* acc(x)[I]
...+>) S
)
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