[all-commits] [llvm/llvm-project] ecfeac: [AArch64] Convert aarch64_neon_sqxtn to ISD::TRUNC...

[David Green via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ecfeacd152f07cf8aea210f63415e3e48b05ab22
      https://github.com/llvm/llvm-project/commit/ecfeacd152f07cf8aea210f63415e3e48b05ab22
  Author: David Green <david.green at arm.com>
  Date:   2024-10-21 (Mon, 21 Oct 2024)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td

  Log Message:
  -----------
  [AArch64] Convert aarch64_neon_sqxtn to ISD::TRUNCATE_SSAT_S and replace tablegen patterns

This lowers the aarch64_neon_sqxtn intrinsics to the new TRUNCATE_SSAT_S ISD
nodes, performing the same for sqxtun and uqxtn. This allows us to clean up the
tablegen patterns a little and in a future commit add combines for sqxtn.



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