llvm-project

212d612b - [mlir][llvm][OpenMP] Support iterator modifier in depend clause (#190026)

[mlir][llvm][OpenMP] Support iterator modifier in depend clause (#190026) Add translation from the MLIR OpenMP depend clause with iterator modifier to LLVM IR. `buildDependData` (in OpenMPToLLVMIRTranslation) allocates a single `kmp_depend_info` array sized to hold both locator (non-iterated) and iterated entries. Locator dependencies use the existing static path (a vector of `DependData`), while iterated dependencies use a dynamically-sized path (`DepArray`, `NumDeps`). The reason both paths are not unified under the dynamic allocation is that the existing locator path emits actual `kmp_depend_info` entries inside OMPIRBuilder methods (`createTask`, `createTarget`), whereas the iterator path must emit the iterator loop in OpenMPToLLVMIRTranslation (since the convention is to not pass MLIR ops into the OMPIRBuilder). Unifying them would require modifying existing depend clause tests. The `OMPIRBuilder::DependenciesInfo` struct is extended to hold either a `SmallVector<DependData>` (locator path) or a pre-built `{DepArray, NumDeps}` pair (iterator path). The single-entry `emitTaskDependency` helper is made public so the translation layer can fill individual `kmp_depend_info` entries inside the iterator loop body. This patch is part of the feature work for #188061. Assisted with copilot.