[all-commits] [llvm/llvm-project] 44271e: [AArch64][SVE] Fix lowering of "fcmp ueq/one" when...

david-arm via All-commits all-commits at lists.llvm.org
Wed Apr 13 02:24:19 PDT 2022

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 44271e7c5582a01ec389231ee98687b0b4557df4
  Author: David Sherwood <david.sherwood at arm.com>
  Date:   2022-04-13 (Wed, 13 Apr 2022)

  Changed paths:
    M llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
    M llvm/lib/Target/AArch64/AArch64SVEInstrInfo.td
    M llvm/test/CodeGen/AArch64/sve-fcmp.ll
    M llvm/test/CodeGen/AArch64/sve-fixed-length-float-compares.ll
    M llvm/test/CodeGen/AArch64/sve-fixed-length-ptest.ll
    M llvm/test/CodeGen/AArch64/sve-select.ll

  Log Message:
  [AArch64][SVE] Fix lowering of "fcmp ueq/one" when using SVE

We were previously lowering to the incorrect instructions for the
setcc DAG node when using the SETUEQ and SETONE floating point
condition codes. I have fixed this by marking the SETONE code
as Expand and letting the SETUNE code be legal. I have also
fixed up the patterns for FCMNE_PPzZZ and FCMNE_PPzZ0 to use
the correct opcode.

Differential Revision: https://reviews.llvm.org/D121905

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