[PATCH] D145485: [IR] Generalize interleave/deinterleave intrinsics to factors > 2

[Luke Lau via Phabricator via llvm-commits]

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This replaces the @llvm.experimental.vector.interleave2
and @llvm.experimental.vector.deinterleave2 intrinsics with the more
general @llvm.experimental.vector.interleave
@llvm.experimental.vector.deinterleave intrinsics that can
interleave/deinterleave an arbitrary number of lanes.

This also extends the vector_interleave/vector_deinterleave SelectionDAG
nodes to match.

Rather than creating N different intrinsics for
@llvm.experimental.vector.interleaveN, this changes the type to accept a
variadic number of arguments, which determines the interleave factor.
Conversely, the interleave factor for the deinterleave intrinsics is
determined by the number of return types.

This does not add support for code generation for factors > 2 yet, which
will be added in a later patch.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D145485

Files:
  llvm/docs/LangRef.rst
  llvm/include/llvm/CodeGen/ISDOpcodes.h
  llvm/include/llvm/IR/Intrinsics.td
  llvm/lib/CodeGen/SelectionDAG/LegalizeIntegerTypes.cpp
  llvm/lib/CodeGen/SelectionDAG/LegalizeVectorTypes.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  llvm/lib/IR/Verifier.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/test/CodeGen/AArch64/fixed-vector-deinterleave.ll
  llvm/test/CodeGen/AArch64/fixed-vector-interleave.ll
  llvm/test/CodeGen/AArch64/sve-vector-deinterleave.ll
  llvm/test/CodeGen/AArch64/sve-vector-interleave.ll
  llvm/test/CodeGen/RISCV/rvv/vector-deinterleave-fixed.ll
  llvm/test/CodeGen/RISCV/rvv/vector-deinterleave.ll
  llvm/test/CodeGen/RISCV/rvv/vector-interleave-fixed.ll
  llvm/test/CodeGen/RISCV/rvv/vector-interleave.ll
  llvm/test/Verifier/vector-deinterleave-intrinsic.ll
  llvm/test/Verifier/vector-interleave-intrinsic.ll

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