[all-commits] [llvm/llvm-project] 2af57b: [PowerPC] Add prefix load pattern for fpext to v2f64

[Amy Kwan via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2af57b6099e1750c375cfc1321d1a5ef0a65c085
      https://github.com/llvm/llvm-project/commit/2af57b6099e1750c375cfc1321d1a5ef0a65c085
  Author: Amy Kwan <amy.kwan1 at ibm.com>
  Date:   2021-09-21 (Tue, 21 Sep 2021)

  Changed paths:
    M llvm/lib/Target/PowerPC/PPCInstrPrefix.td
    M llvm/test/CodeGen/PowerPC/reduce_scalarization.ll

  Log Message:
  -----------
  [PowerPC] Add prefix load pattern for fpext to v2f64

This patch adds a prefixed load pattern involving v2f32 fpext v2f64, where we
are dealing with a value with an offset that fits into a 34-bit signed immediate.
A reduced test case is also added to patch that tests the pattern, in which the
pattern is tested in the big endian CHECKs of the newly added test.

Differential Revision: https://reviews.llvm.org/D109887