[PATCH] D152523: [LV] Add cost model for simd vector select instructions of type float

[Allen zhong via Phabricator via llvm-commits]

Allen created this revision.
Allen added reviewers: dmgreen, david-arm, fhahn, silviu.baranga, mcrosier.
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For simd vector selects, use cmeq + bsl for v2f32/v4f32/v2f64, so their cost are cheep.
Fix https://github.com/llvm/llvm-project/issues/63082


https://reviews.llvm.org/D152523

Files:
  llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp
  llvm/test/Analysis/CostModel/AArch64/select.ll
  llvm/test/Analysis/CostModel/AArch64/vector-select.ll
  llvm/test/Transforms/PhaseOrdering/AArch64/hoisting-sinking-required-for-vectorization.ll

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