| commit | b0b6c16b470a7d5d9c63765058cca0ebe07ad57d | [log] [tgz] |
|---|---|---|
| author | Michael Kruse <[email protected]> | Mon May 13 14:10:58 2024 |
| committer | GitHub <[email protected]> | Mon May 13 14:10:58 2024 |
| tree | a74a3acc0ac7eba93e701162feed0377c3201b86 | |
| parent | c4e9e41199127bb288e84e9477da99f28941edb3 [diff] |
[Clang][OpenMP][Tile] Allow non-constant tile sizes. (#91345) Allow non-constants in the `sizes` clause such as ``` #pragma omp tile sizes(a) for (int i = 0; i < n; ++i) ``` This is permitted since tile was introduced in [OpenMP 5.1](https://www.openmp.org/spec-html/5.1/openmpsu53.html#x78-860002.11.9). It is possible to sneak-in negative numbers at runtime as in ``` int a = -1; #pragma omp tile sizes(a) ``` Even though it is not well-formed, it should still result in every loop iteration to be executed exactly once, an invariant of the tile construct that we should ensure. `ParseOpenMPExprListClause` is extracted-out to be reused by the `permutation` clause of the `interchange` construct. Some care was put into ensuring correct behavior in template contexts.
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