[all-commits] [llvm/llvm-project] 0278c9: [VE] Change the way to lower select

[Kazushi Marukawa via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 0278c9ceb6c2475f1b1213fcc4ffaf667c6b7731
      https://github.com/llvm/llvm-project/commit/0278c9ceb6c2475f1b1213fcc4ffaf667c6b7731
  Author: Kazushi (Jam) Marukawa <marukawa at nec.com>
  Date:   2022-10-15 (Sat, 15 Oct 2022)

  Changed paths:
    M llvm/lib/Target/VE/VE.h
    M llvm/lib/Target/VE/VEISelDAGToDAG.cpp
    M llvm/lib/Target/VE/VEISelLowering.cpp
    M llvm/lib/Target/VE/VEISelLowering.h
    M llvm/lib/Target/VE/VEInstrInfo.td
    M llvm/test/CodeGen/VE/Scalar/select.ll
    M llvm/test/CodeGen/VE/Scalar/select_cc.ll

  Log Message:
  -----------
  [VE] Change the way to lower select

Change to use VEISD::CMOV in combineSelect for better optimization.
Support VEISD::CMOV in combineTRUNCATE also to optimize trancate.
Merge functions to handle condition codes to VE.h.  And add basic
CMOV patterns to VEInstrInfo.td.  Update regression tests also.

Reviewed By: efocht

Differential Revision: https://reviews.llvm.org/D135878