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llvm/lib/Target/PowerPC/PPCScheduleE5500.td
Justin Hibbits ef43506806 Add some Book-E instructions to the asm parser and printer. 
Summary:
Adds the following instructions:
* mfpmr
* mtpmr
* icblc
* icblq
* icbtls

Fix the scheduling for mtspr on e5500, which uses CFX0, instead of
SFX0/SFX1 as on e500mc.

Addresses PR 31538.

Differential Revision: https://reviews.llvm.org/D29002

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293417 91177308-0d34-0410-b5e6-96231b3b80d8
2017-01-29 04:55:57 +00:00

386 lines
24 KiB
TableGen
Raw Blame History

//===-- PPCScheduleE500mc.td - e5500 Scheduling Defs -------*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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_LdStStoreUpd,[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_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_LdStSTDU, [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_LdStSTDUX, [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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