PPCScheduleA2.td
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//===- PPCScheduleA2.td - PPC A2 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
//
//===----------------------------------------------------------------------===//
// Primary reference:
// A2 Processor User's Manual.
// IBM (as updated in) 2010.
//===----------------------------------------------------------------------===//
// Functional units on the PowerPC A2 chip sets
//
def A2_XU : FuncUnit; // A2_XU pipeline
def A2_FU : FuncUnit; // FI pipeline
//
// This file defines the itinerary class data for the PPC A2 processor.
//
//===----------------------------------------------------------------------===//
def PPCA2Itineraries : ProcessorItineraries<
[A2_XU, A2_FU], [], [
InstrItinData<IIC_IntSimple, [InstrStage<1, [A2_XU]>],
[1, 0, 0]>,
InstrItinData<IIC_IntGeneral, [InstrStage<1, [A2_XU]>],
[2, 0, 0]>,
InstrItinData<IIC_IntISEL, [InstrStage<1, [A2_XU]>],
[2, 0, 0, 0]>,
InstrItinData<IIC_IntCompare, [InstrStage<1, [A2_XU]>],
[2, 0, 0]>,
InstrItinData<IIC_IntDivW, [InstrStage<1, [A2_XU]>],
[39, 0, 0]>,
InstrItinData<IIC_IntDivD, [InstrStage<1, [A2_XU]>],
[71, 0, 0]>,
InstrItinData<IIC_IntMulHW, [InstrStage<1, [A2_XU]>],
[5, 0, 0]>,
InstrItinData<IIC_IntMulHWU, [InstrStage<1, [A2_XU]>],
[5, 0, 0]>,
InstrItinData<IIC_IntMulLI, [InstrStage<1, [A2_XU]>],
[6, 0, 0]>,
InstrItinData<IIC_IntRotate, [InstrStage<1, [A2_XU]>],
[2, 0, 0]>,
InstrItinData<IIC_IntRotateD, [InstrStage<1, [A2_XU]>],
[2, 0, 0]>,
InstrItinData<IIC_IntRotateDI, [InstrStage<1, [A2_XU]>],
[2, 0, 0]>,
InstrItinData<IIC_IntShift, [InstrStage<1, [A2_XU]>],
[2, 0, 0]>,
InstrItinData<IIC_IntTrapW, [InstrStage<1, [A2_XU]>],
[2, 0]>,
InstrItinData<IIC_IntTrapD, [InstrStage<1, [A2_XU]>],
[2, 0]>,
InstrItinData<IIC_BrB, [InstrStage<1, [A2_XU]>],
[6, 0, 0]>,
InstrItinData<IIC_BrCR, [InstrStage<1, [A2_XU]>],
[1, 0, 0]>,
InstrItinData<IIC_BrMCR, [InstrStage<1, [A2_XU]>],
[5, 0, 0]>,
InstrItinData<IIC_BrMCRX, [InstrStage<1, [A2_XU]>],
[1, 0, 0]>,
InstrItinData<IIC_LdStDCBA, [InstrStage<1, [A2_XU]>],
[1, 0, 0]>,
InstrItinData<IIC_LdStDCBF, [InstrStage<1, [A2_XU]>],
[1, 0, 0]>,
InstrItinData<IIC_LdStDCBI, [InstrStage<1, [A2_XU]>],
[1, 0, 0]>,
InstrItinData<IIC_LdStLoad, [InstrStage<1, [A2_XU]>],
[6, 0, 0]>,
InstrItinData<IIC_LdStLoadUpd, [InstrStage<1, [A2_XU]>],
[6, 8, 0, 0]>,
InstrItinData<IIC_LdStLoadUpdX,[InstrStage<1, [A2_XU]>],
[6, 8, 0, 0]>,
InstrItinData<IIC_LdStLDU, [InstrStage<1, [A2_XU]>],
[6, 0, 0]>,
InstrItinData<IIC_LdStLDUX, [InstrStage<1, [A2_XU]>],
[6, 0, 0]>,
InstrItinData<IIC_LdStStore, [InstrStage<1, [A2_XU]>],
[0, 0, 0]>,
InstrItinData<IIC_LdStICBI, [InstrStage<1, [A2_XU]>],
[16, 0, 0]>,
InstrItinData<IIC_LdStSTFD, [InstrStage<1, [A2_XU]>],
[0, 0, 0]>,
InstrItinData<IIC_LdStSTFDU, [InstrStage<1, [A2_XU]>],
[2, 0, 0, 0]>,
InstrItinData<IIC_LdStLFD, [InstrStage<1, [A2_XU]>],
[7, 0, 0]>,
InstrItinData<IIC_LdStLFDU, [InstrStage<1, [A2_XU]>],
[7, 9, 0, 0]>,
InstrItinData<IIC_LdStLFDUX, [InstrStage<1, [A2_XU]>],
[7, 9, 0, 0]>,
InstrItinData<IIC_LdStLHA, [InstrStage<1, [A2_XU]>],
[6, 0, 0]>,
InstrItinData<IIC_LdStLHAU, [InstrStage<1, [A2_XU]>],
[6, 8, 0, 0]>,
InstrItinData<IIC_LdStLHAUX, [InstrStage<1, [A2_XU]>],
[6, 8, 0, 0]>,
InstrItinData<IIC_LdStLWARX, [InstrStage<1, [A2_XU]>],
[82, 0, 0]>, // L2 latency
InstrItinData<IIC_LdStSTD, [InstrStage<1, [A2_XU]>],
[0, 0, 0]>,
InstrItinData<IIC_LdStSTU, [InstrStage<1, [A2_XU]>],
[2, 0, 0, 0]>,
InstrItinData<IIC_LdStSTUX, [InstrStage<1, [A2_XU]>],
[2, 0, 0, 0]>,
InstrItinData<IIC_LdStSTDCX, [InstrStage<1, [A2_XU]>],
[82, 0, 0]>, // L2 latency
InstrItinData<IIC_LdStSTWCX, [InstrStage<1, [A2_XU]>],
[82, 0, 0]>, // L2 latency
InstrItinData<IIC_LdStSync, [InstrStage<1, [A2_XU]>],
[6]>,
InstrItinData<IIC_SprISYNC, [InstrStage<1, [A2_XU]>],
[16]>,
InstrItinData<IIC_SprMTMSR, [InstrStage<1, [A2_XU]>],
[16, 0]>,
InstrItinData<IIC_SprMFCR, [InstrStage<1, [A2_XU]>],
[6, 0]>,
InstrItinData<IIC_SprMFCRF, [InstrStage<1, [A2_XU]>],
[1, 0]>,
InstrItinData<IIC_SprMFMSR, [InstrStage<1, [A2_XU]>],
[4, 0]>,
InstrItinData<IIC_SprMFSPR, [InstrStage<1, [A2_XU]>],
[6, 0]>,
InstrItinData<IIC_SprMFTB, [InstrStage<1, [A2_XU]>],
[4, 0]>,
InstrItinData<IIC_SprMTSPR, [InstrStage<1, [A2_XU]>],
[6, 0]>,
InstrItinData<IIC_SprRFI, [InstrStage<1, [A2_XU]>],
[16]>,
InstrItinData<IIC_SprSC, [InstrStage<1, [A2_XU]>],
[16]>,
InstrItinData<IIC_FPGeneral, [InstrStage<1, [A2_FU]>],
[6, 0, 0]>,
InstrItinData<IIC_FPAddSub, [InstrStage<1, [A2_FU]>],
[6, 0, 0]>,
InstrItinData<IIC_FPCompare, [InstrStage<1, [A2_FU]>],
[5, 0, 0]>,
InstrItinData<IIC_FPDivD, [InstrStage<1, [A2_FU]>],
[72, 0, 0]>,
InstrItinData<IIC_FPDivS, [InstrStage<1, [A2_FU]>],
[59, 0, 0]>,
InstrItinData<IIC_FPSqrtD, [InstrStage<1, [A2_FU]>],
[69, 0, 0]>,
InstrItinData<IIC_FPSqrtS, [InstrStage<1, [A2_FU]>],
[65, 0, 0]>,
InstrItinData<IIC_FPFused, [InstrStage<1, [A2_FU]>],
[6, 0, 0, 0]>,
InstrItinData<IIC_FPRes, [InstrStage<1, [A2_FU]>],
[6, 0]>
]>;
// ===---------------------------------------------------------------------===//
// A2 machine model for scheduling and other instruction cost heuristics.
def PPCA2Model : SchedMachineModel {
let IssueWidth = 1; // 1 instruction is dispatched per cycle.
let LoadLatency = 6; // Optimistic load latency assuming bypass.
// This is overriden by OperandCycles if the
// Itineraries are queried instead.
let MispredictPenalty = 13;
let CompleteModel = 0;
let Itineraries = PPCA2Itineraries;
}