[PATCH] D128919: [DAG] Teach isConstOrConstSplat about SPLAT_VECTORs

[Dave Green via Phabricator via llvm-commits]

dmgreen created this revision.
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This teaches the DemandedElts version of isConstOrConstSplat about SPLAT_VECTORS, in the same way as the non-DemandedElts version.


https://reviews.llvm.org/D128919

Files:
  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  llvm/test/CodeGen/AArch64/sve-knownbits.ll
  llvm/test/CodeGen/RISCV/rvv/vnsra-sdnode.ll

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