forked from OSchip/llvm-project
c7e275388e
We already do not unroll loops with vector instructions under MVE, but that does not include the remainder loops that the vectorizer produces. These remainder loops will be rarely executed and are not worth unrolling, as the trip count is likely to be low if they get executed at all. Luckily they get llvm.loop.isvectorized to make recognizing them simpler. We have wanted to do this for a while but hit issues with low overhead loops being reverted due to difficult registry allocation. With recent changes that seems to be less of an issue now. Differential Revision: https://reviews.llvm.org/D90055 |
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| .. | ||
| dont-unroll-loopdec.ll | ||
| instr-size-costs.ll | ||
| lit.local.cfg | ||
| loop-unrolling.ll | ||
| multi-blocks.ll | ||
| mve-nounroll.ll | ||
| unroll-optsize.ll | ||
| upperbound.ll | ||