contrib/llvm-project/llvm/lib/Target/AArch64/AArch64SchedPredAmpere.td

   1 //===- AArch64SchedPredAmpere.td - AArch64 Sched Preds -----*- tablegen -*-===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8 //
   9 // This file defines scheduling predicate definitions that are used by the
  10 // AArch64 Ampere Computing processors.
  11 //
  12 //===----------------------------------------------------------------------===//
  13
  14 // Auxiliary predicates.
  15
  16 // Check for a LSL shift <= 4
  17 def AmpereCheapLSL : MCSchedPredicate<
  18                                 CheckAny<[CheckShiftBy0,
  19                                  CheckAll<
  20                                    [CheckShiftLSL,
  21                                     CheckAny<
  22                                       [CheckShiftBy1,
  23                                        CheckShiftBy2,
  24                                        CheckShiftBy3,
  25                                        CheckShiftBy4]>]>]>>;