[all-commits] [llvm/llvm-project] 8ffe88: [PowerPC] Exploit VSX neg, abs and nabs for f32

[Qiu Chaofan via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 8ffe8891cd57694dbed148cfcae8aaede70a0f30
      https://github.com/llvm/llvm-project/commit/8ffe8891cd57694dbed148cfcae8aaede70a0f30
  Author: Qiu Chaofan <qiucofan at cn.ibm.com>
  Date:   2020-05-13 (Wed, 13 May 2020)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCInstrVSX.td
    M llvm/test/CodeGen/PowerPC/float-logic-ops.ll
    M llvm/test/CodeGen/PowerPC/fma.ll
    M llvm/test/CodeGen/PowerPC/fmf-propagation.ll
    M llvm/test/CodeGen/PowerPC/fsub-fneg.ll

  Log Message:
  -----------
  [PowerPC] Exploit VSX neg, abs and nabs for f32

xsnegdp, xsabsdp and xsnabsdp can be used to operate on f32 operand.

This patch adds the missing patterns since we prefer VSX instructions
when available.

Reviewed By: steven.zhang

Differential Revision: https://reviews.llvm.org/D75344