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b00f0df573
Currently we will allow loops with a fixed width VF of 1 to vectorize if the -enable-strict-reductions flag is set. However, the loop vectorizer will not use ordered reductions if `VF.isScalar()` and the resulting vectorized loop will be out of order. This patch removes `VF.isVector()` when checking if ordered reductions should be used. Also, instead of converting the FAdds to reductions if the VF = 1, operands of the FAdds are changed such that the order is preserved. Reviewed By: david-arm Differential Revision: https://reviews.llvm.org/D104533 |
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