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[flang][acc][NFC] Add deviation to the spec that declaring the same variable is permitted #148288

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Merged
merged 2 commits into from
Jul 14, 2025
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[flang][acc][NFC] Add deviation to the spec that declaring the same variable is permitted #148288

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2f8a7fc
add deviation of declare same variable
SusanTan Jul 11, 2025
4847c09
tweak
SusanTan Jul 14, 2025
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3 changes: 3 additions & 0 deletions flang/docs/OpenACC.md
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Expand Up @@ -27,6 +27,9 @@ local:
* `!$acc cache` directive accepts scalar variable.
* The `!$acc declare` directive accepts assumed size array arguments for
`deviceptr` and `present` clauses.
* The OpenACC specification disallows a variable appearing multiple times in
clauses of `!$acc declare` directives for a function, subroutine, program,
or module, but it is allowed with a warning when same clause is used.

## Remarks about incompatibilities with other implementations
* Array element references in the data clauses are equivalent to array sections
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