This revision was automatically updated to reflect the committed changes. Closed by commit rG52bfa73af841: [docs] loop pragmas: options implying transformations (authored by SjoerdMeijer). Herald added a project: clang.
Repository: rG LLVM Github Monorepo CHANGES SINCE LAST ACTION https://reviews.llvm.org/D66199/new/ https://reviews.llvm.org/D66199 Files: clang/docs/LanguageExtensions.rst Index: clang/docs/LanguageExtensions.rst =================================================================== --- clang/docs/LanguageExtensions.rst +++ clang/docs/LanguageExtensions.rst @@ -3027,6 +3027,14 @@ distribution. Loop hints can be specified before any loop and will be ignored if the optimization is not safe to apply. +There are loop hints that control transformations (e.g. vectorization, loop +unrolling) and there are loop hints that set transformation options (e.g. +``vectorize_width``, ``unroll_count``). Pragmas setting transformation options +imply the transformation is enabled, as if it was enabled via the corresponding +transformation pragma (e.g. ``vectorize(enable)``). If the transformation is +disabled (e.g. ``vectorize(disable)``), that takes precedence over +transformations option pragmas implying that transformation. + Vectorization, Interleaving, and Predication --------------------------------------------
Index: clang/docs/LanguageExtensions.rst =================================================================== --- clang/docs/LanguageExtensions.rst +++ clang/docs/LanguageExtensions.rst @@ -3027,6 +3027,14 @@ distribution. Loop hints can be specified before any loop and will be ignored if the optimization is not safe to apply. +There are loop hints that control transformations (e.g. vectorization, loop +unrolling) and there are loop hints that set transformation options (e.g. +``vectorize_width``, ``unroll_count``). Pragmas setting transformation options +imply the transformation is enabled, as if it was enabled via the corresponding +transformation pragma (e.g. ``vectorize(enable)``). If the transformation is +disabled (e.g. ``vectorize(disable)``), that takes precedence over +transformations option pragmas implying that transformation. + Vectorization, Interleaving, and Predication --------------------------------------------
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