[PATCH] D95245: [SVE] Add support for scalable vectorization of loops with int/fast FP reductions

Dave Green via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Feb 1 10:26:28 PST 2021


dmgreen added inline comments.


================
Comment at: llvm/include/llvm/Analysis/TargetTransformInfo.h:1310
+  /// \returns True if it is legal to vectorize the given reduction kind.
+  bool isLegalToVectorizeReduction(RecurKind RecKind, bool Scalable) const;
+
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Does this need to check the type? Does an i128 reduction work, for example?

I presume if a <vscale x 4 x float> reduction works then any <vscale x ? x float> will work?


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  https://reviews.llvm.org/D95245/new/

https://reviews.llvm.org/D95245



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