[PATCH] D138351: [SVE] Fix incorrect predicate for fixed length int/fp conversion.

[Paul Walker via Phabricator via llvm-commits]

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When performing shrinking int/fp conversions the predicate should
be created to match the original fixed length vector type so the
unused lanes don't trigger side effects.

This patch also includes related refactoring to better detect such
issues and streamline the code a little.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D138351

Files:
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/test/CodeGen/AArch64/sve-fixed-length-fp-to-int.ll
  llvm/test/CodeGen/AArch64/sve-fixed-length-int-to-fp.ll

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