[all-commits] [llvm/llvm-project] be826c: [AArch64][NEON][SVE] Lower FCOPYSIGN using AArch64...

[David Truby via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: be826cf4f71a7f9b7e9160b84c6c7e99e19a642f
      https://github.com/llvm/llvm-project/commit/be826cf4f71a7f9b7e9160b84c6c7e99e19a642f
  Author: David Truby <david.truby at arm.com>
  Date:   2022-02-07 (Mon, 07 Feb 2022)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
    M llvm/lib/Target/AArch64/SVEInstrFormats.td
    M llvm/test/CodeGen/AArch64/arm64-fcopysign.ll
    M llvm/test/CodeGen/AArch64/f16-instructions.ll
    M llvm/test/CodeGen/AArch64/fcopysign.ll
    M llvm/test/CodeGen/AArch64/sve-fcopysign.ll
    A llvm/test/CodeGen/AArch64/sve2-fcopysign.ll
    M llvm/test/CodeGen/AArch64/vector-fcopysign.ll

  Log Message:
  -----------
  [AArch64][NEON][SVE] Lower FCOPYSIGN using AArch64ISD::BSP

This patch modifies the FCOPYSIGN lowering to go through the BSP
pseudo-instruction. This allows the same lowering code for NEON,
SVE and SVE2.

As part of this, lowering for BSP for SVE and SVE2 is also added.

For SVE and NEON this patch is NFC.

Differential Revision: https://reviews.llvm.org/D118394