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llvm-mirror/lib/Target/PowerPC/PPCScheduleE5500.td
Chandler Carruth ae65e281f3 Update the file headers across all of the LLVM projects in the monorepo 
to reflect the new license.

We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.

Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.

llvm-svn: 351636
2019-01-19 08:50:56 +00:00

379 lines
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TableGen
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//===-- PPCScheduleE500mc.td - e5500 Scheduling Defs -------*- 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 itinerary class data for the Freescale e5500 64-bit
// Power processor.
//
// All information is derived from the "e5500 Core Reference Manual",
// Freescale Document Number e5500RM, Rev. 1, 03/2012.
//
//===----------------------------------------------------------------------===//
// Relevant functional units in the Freescale e5500 core
// (These are the same as for the e500mc)
//
// * Decode & Dispatch
// Can dispatch up to 2 instructions per clock cycle to either the GPR Issue
// queues (GIQx), FP Issue Queue (FIQ), or Branch issue queue (BIQ).
def E5500_DIS0 : FuncUnit;
def E5500_DIS1 : FuncUnit;
// * Execute
// 6 pipelined execution units: SFX0, SFX1, BU, FPU, LSU, CFX.
// The CFX has a bypass path, allowing non-divide instructions to execute
// while a divide instruction is being executed.
def E5500_SFX0 : FuncUnit; // Simple unit 0
def E5500_SFX1 : FuncUnit; // Simple unit 1
def E5500_BU : FuncUnit; // Branch unit
def E5500_CFX_DivBypass
: FuncUnit; // CFX divide bypass path
def E5500_CFX_0 : FuncUnit; // CFX pipeline stage 0
def E5500_CFX_1 : FuncUnit; // CFX pipeline stage 1
def E5500_LSU_0 : FuncUnit; // LSU pipeline
def E5500_FPU_0 : FuncUnit; // FPU pipeline
def E5500_GPR_Bypass : Bypass;
def E5500_FPR_Bypass : Bypass;
def E5500_CR_Bypass : Bypass;
def PPCE5500Itineraries : ProcessorItineraries<
[E5500_DIS0, E5500_DIS1, E5500_SFX0, E5500_SFX1, E5500_BU,
E5500_CFX_DivBypass, E5500_CFX_0, E5500_CFX_1,
E5500_LSU_0, E5500_FPU_0],
[E5500_CR_Bypass, E5500_GPR_Bypass, E5500_FPR_Bypass], [
InstrItinData<IIC_IntSimple, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1]>],
[5, 2, 2], // Latency = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntGeneral, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1]>],
[5, 2, 2], // Latency = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntISEL, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1]>],
[5, 2, 2, 2], // Latency = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass,
E5500_CR_Bypass]>,
InstrItinData<IIC_IntCompare, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1]>],
[6, 2, 2], // Latency = 1 or 2
[E5500_CR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntDivD, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0], 0>,
InstrStage<26, [E5500_CFX_DivBypass]>],
[30, 2, 2], // Latency= 4..26, Repeat rate= 4..26
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntDivW, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0], 0>,
InstrStage<16, [E5500_CFX_DivBypass]>],
[20, 2, 2], // Latency= 4..16, Repeat rate= 4..16
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntMFFS, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_FPU_0]>],
[11], // Latency = 7, Repeat rate = 1
[E5500_FPR_Bypass]>,
InstrItinData<IIC_IntMTFSB0, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<7, [E5500_FPU_0]>],
[11, 2, 2], // Latency = 7, Repeat rate = 7
[NoBypass, NoBypass, NoBypass]>,
InstrItinData<IIC_IntMulHD, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0], 0>,
InstrStage<2, [E5500_CFX_1]>],
[9, 2, 2], // Latency = 4..7, Repeat rate = 2..4
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntMulHW, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0], 0>,
InstrStage<1, [E5500_CFX_1]>],
[8, 2, 2], // Latency = 4, Repeat rate = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntMulHWU, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0], 0>,
InstrStage<1, [E5500_CFX_1]>],
[8, 2, 2], // Latency = 4, Repeat rate = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntMulLI, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0], 0>,
InstrStage<2, [E5500_CFX_1]>],
[8, 2, 2], // Latency = 4 or 5, Repeat = 2
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntRotate, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1]>],
[5, 2, 2], // Latency = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntRotateD, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<2, [E5500_SFX0, E5500_SFX1]>],
[6, 2, 2], // Latency = 2, Repeat rate = 2
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntRotateDI, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1]>],
[5, 2, 2], // Latency = 1, Repeat rate = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntShift, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<2, [E5500_SFX0, E5500_SFX1]>],
[6, 2, 2], // Latency = 2, Repeat rate = 2
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_IntTrapW, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<2, [E5500_SFX0]>],
[6, 2], // Latency = 2, Repeat rate = 2
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_BrB, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_BU]>],
[5, 2], // Latency = 1
[NoBypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_BrCR, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_BU]>],
[5, 2, 2], // Latency = 1
[E5500_CR_Bypass,
E5500_CR_Bypass, E5500_CR_Bypass]>,
InstrItinData<IIC_BrMCR, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_BU]>],
[5, 2], // Latency = 1
[E5500_CR_Bypass, E5500_CR_Bypass]>,
InstrItinData<IIC_BrMCRX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0]>],
[5, 2, 2], // Latency = 1
[E5500_CR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStDCBA, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStDCBF, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStDCBI, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStLoad, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStLoadUpd, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLoadUpdX,[InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLD, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStLDARX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<3, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 3
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStLDU, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLDUX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStStore, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[NoBypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStICBI, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[NoBypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStSTFD, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStSTFDU, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLFD, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[8, 2, 2], // Latency = 4, Repeat rate = 1
[E5500_FPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLFDU, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[8, 2, 2], // Latency = 4, Repeat rate = 1
[E5500_FPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLFDUX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[8, 2, 2], // Latency = 4, Repeat rate = 1
[E5500_FPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLHA, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStLHAU, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLHAUX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[E5500_GPR_Bypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStLMW, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<4, [E5500_LSU_0]>],
[8, 2], // Latency = r+3, Repeat rate = r+3
[NoBypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStLWARX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<3, [E5500_LSU_0]>],
[7, 2, 2], // Latency = 3, Repeat rate = 3
[E5500_GPR_Bypass,
E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStSTD, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[NoBypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStSTDCX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[NoBypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStSTU, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[NoBypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStSTUX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_SFX0, E5500_SFX1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[NoBypass, E5500_GPR_Bypass],
2>, // 2 micro-ops
InstrItinData<IIC_LdStSTWCX, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>],
[7, 2], // Latency = 3, Repeat rate = 1
[NoBypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_LdStSync, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0]>]>,
InstrItinData<IIC_SprMTMSR, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<2, [E5500_CFX_0]>],
[6, 2], // Latency = 2, Repeat rate = 4
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_SprTLBSYNC, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_LSU_0], 0>]>,
InstrItinData<IIC_SprMFCR, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<5, [E5500_CFX_0]>],
[9, 2], // Latency = 5, Repeat rate = 5
[E5500_GPR_Bypass, E5500_CR_Bypass]>,
InstrItinData<IIC_SprMFCRF, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<5, [E5500_CFX_0]>],
[9, 2], // Latency = 5, Repeat rate = 5
[E5500_GPR_Bypass, E5500_CR_Bypass]>,
InstrItinData<IIC_SprMFPMR, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<4, [E5500_CFX_0]>],
[8, 2], // Latency = 4, Repeat rate = 4
[E5500_GPR_Bypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_SprMFSPR, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0]>],
[5], // Latency = 1, Repeat rate = 1
[E5500_GPR_Bypass]>,
InstrItinData<IIC_SprMTPMR, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0]>],
[5], // Latency = 1, Repeat rate = 1
[E5500_GPR_Bypass]>,
InstrItinData<IIC_SprMFTB, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<4, [E5500_CFX_0]>],
[8, 2], // Latency = 4, Repeat rate = 4
[NoBypass, E5500_GPR_Bypass]>,
InstrItinData<IIC_SprMTSPR, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_CFX_0]>],
[5], // Latency = 1, Repeat rate = 1
[E5500_GPR_Bypass]>,
InstrItinData<IIC_FPGeneral, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_FPU_0]>],
[11, 2, 2], // Latency = 7, Repeat rate = 1
[E5500_FPR_Bypass,
E5500_FPR_Bypass, E5500_FPR_Bypass]>,
InstrItinData<IIC_FPAddSub, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_FPU_0]>],
[11, 2, 2], // Latency = 7, Repeat rate = 1
[E5500_FPR_Bypass,
E5500_FPR_Bypass, E5500_FPR_Bypass]>,
InstrItinData<IIC_FPCompare, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_FPU_0]>],
[11, 2, 2], // Latency = 7, Repeat rate = 1
[E5500_CR_Bypass,
E5500_FPR_Bypass, E5500_FPR_Bypass]>,
InstrItinData<IIC_FPDivD, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<31, [E5500_FPU_0]>],
[39, 2, 2], // Latency = 35, Repeat rate = 31
[E5500_FPR_Bypass,
E5500_FPR_Bypass, E5500_FPR_Bypass]>,
InstrItinData<IIC_FPDivS, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<16, [E5500_FPU_0]>],
[24, 2, 2], // Latency = 20, Repeat rate = 16
[E5500_FPR_Bypass,
E5500_FPR_Bypass, E5500_FPR_Bypass]>,
InstrItinData<IIC_FPFused, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<1, [E5500_FPU_0]>],
[11, 2, 2, 2], // Latency = 7, Repeat rate = 1
[E5500_FPR_Bypass,
E5500_FPR_Bypass, E5500_FPR_Bypass,
E5500_FPR_Bypass]>,
InstrItinData<IIC_FPRes, [InstrStage<1, [E5500_DIS0, E5500_DIS1], 0>,
InstrStage<2, [E5500_FPU_0]>],
[12, 2], // Latency = 8, Repeat rate = 2
[E5500_FPR_Bypass, E5500_FPR_Bypass]>
]>;
// ===---------------------------------------------------------------------===//
// e5500 machine model for scheduling and other instruction cost heuristics.
def PPCE5500Model : SchedMachineModel {
let IssueWidth = 2; // 2 micro-ops are dispatched per cycle.
let LoadLatency = 6; // Optimistic load latency assuming bypass.
// This is overriden by OperandCycles if the
// Itineraries are queried instead.
let CompleteModel = 0;
let Itineraries = PPCE5500Itineraries;
}
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