[PATCH] D149654: [SLP][RISCV] Account for offset folding in getPointersChainCost

[Luke Lau via Phabricator via llvm-commits]

luke added inline comments.


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Comment at: llvm/test/Transforms/SLPVectorizer/RISCV/getpointerschaincost.ll:56
+; CHECK-NEXT: SLP:     VectorCost = 1
+; CHECK-NEXT: SLP:     ScalarCost = 1
+entry:
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Also worth noting, I tried to come up with a test case where only some of the pointers were folded and some weren't, but couldn't find a sane way to do so.
Namely for RISC-V, we need a chain of pointers that are unit-strided, but is also somehow long enough that the offset overflows 2^12. 


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149654/new/

https://reviews.llvm.org/D149654