[PATCH] D153355: [CodeGen] Add support for Splats in ComplexDeinterleaving pass

[Igor Kirillov via Phabricator via llvm-commits]

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This commit allows generating of complex number intrinsics for expressions
with constants or loops invariants, which are represented as splats.
For instance, after vectorizing loops in the following code snippets,
the ComplexDeinterleaving pass will be able to generate complex number
intrinsics:

  complex<> x = ...;
  for (int i = 0; i < N; ++i)
      c[i] = a[i] * b[i] * x;

or

  for (int i = 0; i < N; ++i)
      c[i] = a[i] * b[i] * (11.0 + 3.0i);


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D153355

Files:
  llvm/include/llvm/CodeGen/ComplexDeinterleavingPass.h
  llvm/lib/CodeGen/ComplexDeinterleavingPass.cpp
  llvm/test/CodeGen/AArch64/complex-deinterleaving-splat-scalable.ll
  llvm/test/CodeGen/AArch64/complex-deinterleaving-splat.ll

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