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//==- AArch64SchedFalkor.td - Falkor Scheduling Definitions -*- tablegen -*-==//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This file defines the machine model for Qualcomm Falkor to support
// instruction scheduling and other instruction cost heuristics.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Define the SchedMachineModel and provide basic properties for coarse grained
// instruction cost model.
def FalkorModel : SchedMachineModel {
let IssueWidth = 8; // 8 uops are dispatched per cycle.
let MicroOpBufferSize = 128; // Out-of-order with temporary unified issue buffer.
let LoopMicroOpBufferSize = 16;
let LoadLatency = 3; // Optimistic load latency.
let MispredictPenalty = 11; // Minimum branch misprediction penalty.
let CompleteModel = 1;
list<Predicate> UnsupportedFeatures = !listconcat(SVEUnsupported.F,
PAUnsupported.F);
// FIXME: Remove when all errors have been fixed.
let FullInstRWOverlapCheck = 0;
}
//===----------------------------------------------------------------------===//
// Define each kind of processor resource and number available on Falkor.
let SchedModel = FalkorModel in {
def FalkorUnitB : ProcResource<1>; // Branch
def FalkorUnitLD : ProcResource<1>; // Load pipe
def FalkorUnitSD : ProcResource<1>; // Store data
def FalkorUnitST : ProcResource<1>; // Store pipe
def FalkorUnitX : ProcResource<1>; // Complex arithmetic
def FalkorUnitY : ProcResource<1>; // Simple arithmetic
def FalkorUnitZ : ProcResource<1>; // Simple arithmetic
def FalkorUnitVSD : ProcResource<1>; // Vector store data
def FalkorUnitVX : ProcResource<1>; // Vector X-pipe
def FalkorUnitVY : ProcResource<1>; // Vector Y-pipe
def FalkorUnitGTOV : ProcResource<1>; // Scalar to Vector
def FalkorUnitVTOG : ProcResource<1>; // Vector to Scalar
// Define the resource groups.
def FalkorUnitXY : ProcResGroup<[FalkorUnitX, FalkorUnitY]>;
def FalkorUnitXYZ : ProcResGroup<[FalkorUnitX, FalkorUnitY, FalkorUnitZ]>;
def FalkorUnitXYZB : ProcResGroup<[FalkorUnitX, FalkorUnitY, FalkorUnitZ,
FalkorUnitB]>;
def FalkorUnitZB : ProcResGroup<[FalkorUnitZ, FalkorUnitB]>;
def FalkorUnitVXVY : ProcResGroup<[FalkorUnitVX, FalkorUnitVY]>;
}
//===----------------------------------------------------------------------===//
// Map the target-defined scheduler read/write resources and latency for
// Falkor.
let SchedModel = FalkorModel in {
// These WriteRes entries are not used in the Falkor sched model.
def : WriteRes<WriteImm, []> { let Unsupported = 1; }
def : WriteRes<WriteI, []> { let Unsupported = 1; }
def : WriteRes<WriteISReg, []> { let Unsupported = 1; }
def : WriteRes<WriteIEReg, []> { let Unsupported = 1; }
def : WriteRes<WriteExtr, []> { let Unsupported = 1; }
def : WriteRes<WriteIS, []> { let Unsupported = 1; }
def : WriteRes<WriteID32, []> { let Unsupported = 1; }
def : WriteRes<WriteID64, []> { let Unsupported = 1; }
def : WriteRes<WriteIM32, []> { let Unsupported = 1; }
def : WriteRes<WriteIM64, []> { let Unsupported = 1; }
def : WriteRes<WriteBr, []> { let Unsupported = 1; }
def : WriteRes<WriteBrReg, []> { let Unsupported = 1; }
def : WriteRes<WriteLD, []> { let Unsupported = 1; }
def : WriteRes<WriteST, []> { let Unsupported = 1; }
def : WriteRes<WriteSTP, []> { let Unsupported = 1; }
def : WriteRes<WriteAdr, []> { let Unsupported = 1; }
def : WriteRes<WriteLDIdx, []> { let Unsupported = 1; }
def : WriteRes<WriteSTIdx, []> { let Unsupported = 1; }
def : WriteRes<WriteF, []> { let Unsupported = 1; }
def : WriteRes<WriteFCmp, []> { let Unsupported = 1; }
def : WriteRes<WriteFCvt, []> { let Unsupported = 1; }
def : WriteRes<WriteFCopy, []> { let Unsupported = 1; }
def : WriteRes<WriteFImm, []> { let Unsupported = 1; }
def : WriteRes<WriteFMul, []> { let Unsupported = 1; }
def : WriteRes<WriteFDiv, []> { let Unsupported = 1; }
def : WriteRes<WriteV, []> { let Unsupported = 1; }
def : WriteRes<WriteVLD, []> { let Unsupported = 1; }
def : WriteRes<WriteVST, []> { let Unsupported = 1; }
def : WriteRes<WriteSys, []> { let Unsupported = 1; }
def : WriteRes<WriteBarrier, []> { let Unsupported = 1; }
def : WriteRes<WriteHint, []> { let Unsupported = 1; }
def : WriteRes<WriteLDHi, []> { let Unsupported = 1; }
def : WriteRes<WriteAtomic, []> { let Unsupported = 1; }
// These ReadAdvance entries are not used in the Falkor sched model.
def : ReadAdvance<ReadI, 0>;
def : ReadAdvance<ReadISReg, 0>;
def : ReadAdvance<ReadIEReg, 0>;
def : ReadAdvance<ReadIM, 0>;
def : ReadAdvance<ReadIMA, 0>;
def : ReadAdvance<ReadID, 0>;
def : ReadAdvance<ReadExtrHi, 0>;
def : ReadAdvance<ReadAdrBase, 0>;
def : ReadAdvance<ReadVLD, 0>;
// Detailed Refinements
// -----------------------------------------------------------------------------
include "AArch64SchedFalkorDetails.td"
}
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