[PATCH] D142015: [LV] Plan with and without FoldTailByMasking

[Dave Green via Phabricator via llvm-commits]

dmgreen updated this revision to Diff 508547.
dmgreen added a comment.

OK This now attempt to use the scheme @fhahn suggested where there are multiple cost models that get created with TailFold=true and TailFold=false.  It should hopefully work with allowing planning with and without tail folding (this patch), plus the predicated epilog vectorization in the followup.

Some of what was in CostModel has moved into the Planner. This patch adds a reference from the vplan to the costmodel to make sure the correct model is used with the correct plan. Hopefully that can be reduced and removed eventually. It does manage to remove the VFCandidates array which is a nice little simplification.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D142015/new/

https://reviews.llvm.org/D142015

Files:
  llvm/include/llvm/Transforms/Vectorize/LoopVectorizationLegality.h
  llvm/lib/Transforms/Vectorize/LoopVectorizationLegality.cpp
  llvm/lib/Transforms/Vectorize/LoopVectorizationPlanner.h
  llvm/lib/Transforms/Vectorize/LoopVectorize.cpp
  llvm/lib/Transforms/Vectorize/VPlan.cpp
  llvm/lib/Transforms/Vectorize/VPlan.h
  llvm/test/Transforms/LoopVectorize/AArch64/masked-call.ll
  llvm/test/Transforms/LoopVectorize/AArch64/maximize-bandwidth-invalidate.ll
  llvm/test/Transforms/LoopVectorize/AArch64/sve-tail-folding-forced.ll
  llvm/test/Transforms/LoopVectorize/AArch64/tail-folding-styles.ll
  llvm/test/Transforms/LoopVectorize/ARM/mve-known-trip-count.ll
  llvm/test/Transforms/LoopVectorize/ARM/tail-folding-reduces-vf.ll
  llvm/test/Transforms/LoopVectorize/PowerPC/reg-usage.ll
  llvm/test/Transforms/LoopVectorize/RISCV/riscv-vector-reverse.ll
  llvm/test/Transforms/LoopVectorize/X86/vect.omp.force.small-tc.ll
  llvm/test/Transforms/LoopVectorize/first-order-recurrence-sink-replicate-region.ll
  llvm/test/Transforms/LoopVectorize/first-order-recurrence.ll
  llvm/test/Transforms/LoopVectorize/icmp-uniforms.ll
  llvm/test/Transforms/LoopVectorize/pr45679-fold-tail-by-masking.ll
  llvm/test/Transforms/LoopVectorize/vplan-sink-scalars-and-merge.ll

-------------- next part --------------
A non-text attachment was scrubbed...
Name: D142015.508547.patch
Type: text/x-patch
Size: 154482 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20230327/43f89d60/attachment-0001.bin>