llvm-project

b3ca423a - [MLIR][Vector] Enhance vector.multi_reduction unrolling to handle scalar result (#188633)

[MLIR][Vector] Enhance vector.multi_reduction unrolling to handle scalar result (#188633) Previously, UnrollMultiReductionPattern bailed out when all the dimensions were reduced to a scalar. This PR adds support for this case by tiling the source vector and chaining partial reductions through the accumulator operand.