[PATCH] D146632: [PowerPC] Fix the xxperm swap requirements

[Maryam Moghadas via Phabricator via llvm-commits]

maryammo created this revision.
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This patch is to fix the xxperm vector operand swap condition so that the
single-use operand is in V2 to prevent copying, it also fixes the subtarget
condition to exploit the xpperm.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146632

Files:
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/test/CodeGen/PowerPC/pre-inc-disable.ll
  llvm/test/CodeGen/PowerPC/v16i8_scalar_to_vector_shuffle.ll
  llvm/test/CodeGen/PowerPC/vector-constrained-fp-intrinsics.ll

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