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llvm-mirror/lib/Target/PowerPC/PPCSchedule440.td
Hal Finkel 4a7dffd074 [PowerPC] Better scheduling for isel on P7/P8 
isel is actually a cracked instruction on the P7/P8, and must start a dispatch
group. The scheduling model should reflect this so that we don't bunch too many
of them together when possible.

Thanks to Bill Schmidt and Pat Haugen for helping to sort this out.

llvm-svn: 227758
2015-02-01 17:52:16 +00:00

608 lines
35 KiB
TableGen
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//===-- PPCSchedule440.td - PPC 440 Scheduling Definitions -*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// Primary reference:
// PowerPC 440x6 Embedded Processor Core User's Manual.
// IBM (as updated in) 2010.
// The basic PPC 440 does not include a floating-point unit; the pipeline
// timings here are constructed to match the FP2 unit shipped with the
// PPC-440- and PPC-450-based Blue Gene (L and P) supercomputers.
// References:
// S. Chatterjee, et al. Design and exploitation of a high-performance
// SIMD floating-point unit for Blue Gene/L.
// IBM J. Res. & Dev. 49 (2/3) March/May 2005.
// also:
// Carlos Sosa and Brant Knudson. IBM System Blue Gene Solution:
// Blue Gene/P Application Development.
// IBM (as updated in) 2009.
//===----------------------------------------------------------------------===//
// Functional units on the PowerPC 440/450 chip sets
//
def P440_DISS1 : FuncUnit; // Issue unit 1
def P440_DISS2 : FuncUnit; // Issue unit 2
def P440_LRACC : FuncUnit; // Register access and dispatch for
// the simple integer (J-pipe) and
// load/store (L-pipe) pipelines
def P440_IRACC : FuncUnit; // Register access and dispatch for
// the complex integer (I-pipe) pipeline
def P440_FRACC : FuncUnit; // Register access and dispatch for
// the floating-point execution (F-pipe) pipeline
def P440_IEXE1 : FuncUnit; // Execution stage 1 for the I pipeline
def P440_IEXE2 : FuncUnit; // Execution stage 2 for the I pipeline
def P440_IWB : FuncUnit; // Write-back unit for the I pipeline
def P440_JEXE1 : FuncUnit; // Execution stage 1 for the J pipeline
def P440_JEXE2 : FuncUnit; // Execution stage 2 for the J pipeline
def P440_JWB : FuncUnit; // Write-back unit for the J pipeline
def P440_AGEN : FuncUnit; // Address generation for the L pipeline
def P440_CRD : FuncUnit; // D-cache access for the L pipeline
def P440_LWB : FuncUnit; // Write-back unit for the L pipeline
def P440_FEXE1 : FuncUnit; // Execution stage 1 for the F pipeline
def P440_FEXE2 : FuncUnit; // Execution stage 2 for the F pipeline
def P440_FEXE3 : FuncUnit; // Execution stage 3 for the F pipeline
def P440_FEXE4 : FuncUnit; // Execution stage 4 for the F pipeline
def P440_FEXE5 : FuncUnit; // Execution stage 5 for the F pipeline
def P440_FEXE6 : FuncUnit; // Execution stage 6 for the F pipeline
def P440_FWB : FuncUnit; // Write-back unit for the F pipeline
def P440_LWARX_Hold : FuncUnit; // This is a pseudo-unit which is used
// to make sure that no lwarx/stwcx.
// instructions are issued while another
// lwarx/stwcx. is in the L pipe.
def P440_GPR_Bypass : Bypass; // The bypass for general-purpose regs.
def P440_FPR_Bypass : Bypass; // The bypass for floating-point regs.
// Notes:
// Instructions are held in the FRACC, LRACC and IRACC pipeline
// stages until their source operands become ready. Exceptions:
// - Store instructions will hold in the AGEN stage
// - The integer multiply-accumulate instruction will hold in
// the IEXE1 stage
//
// For most I-pipe operations, the result is available at the end of
// the IEXE1 stage. Operations such as multiply and divide must
// continue to execute in IEXE2 and IWB. Divide resides in IWB for
// 33 cycles (multiply also calculates its result in IWB). For all
// J-pipe instructions, the result is available
// at the end of the JEXE1 stage. Loads have a 3-cycle latency
// (data is not available until after the LWB stage).
//
// The L1 cache hit latency is four cycles for floating point loads
// and three cycles for integer loads.
//
// The stwcx. instruction requires both the LRACC and the IRACC
// dispatch stages. It must be issued from DISS0.
//
// All lwarx/stwcx. instructions hold in LRACC if another
// uncommitted lwarx/stwcx. is in AGEN, CRD, or LWB.
//
// msync (a.k.a. sync) and mbar will hold in LWB until all load/store
// resources are empty. AGEN and CRD are held empty until the msync/mbar
// commits.
//
// Most floating-point instructions, computational and move,
// have a 5-cycle latency. Divide takes longer (30 cycles). Instructions that
// update the CR take 2 cycles. Stores take 3 cycles and, as mentioned above,
// loads take 4 cycles (for L1 hit).
//
// This file defines the itinerary class data for the PPC 440 processor.
//
//===----------------------------------------------------------------------===//
def PPC440Itineraries : ProcessorItineraries<
[P440_DISS1, P440_DISS2, P440_FRACC, P440_IRACC, P440_IEXE1, P440_IEXE2,
P440_IWB, P440_LRACC, P440_JEXE1, P440_JEXE2, P440_JWB, P440_AGEN, P440_CRD,
P440_LWB, P440_FEXE1, P440_FEXE2, P440_FEXE3, P440_FEXE4, P440_FEXE5,
P440_FEXE6, P440_FWB, P440_LWARX_Hold],
[P440_GPR_Bypass, P440_FPR_Bypass], [
InstrItinData<IIC_IntSimple, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC, P440_LRACC]>,
InstrStage<1, [P440_IEXE1, P440_JEXE1]>,
InstrStage<1, [P440_IEXE2, P440_JEXE2]>,
InstrStage<1, [P440_IWB, P440_JWB]>],
[2, 0, 0],
[P440_GPR_Bypass,
P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntGeneral, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC, P440_LRACC]>,
InstrStage<1, [P440_IEXE1, P440_JEXE1]>,
InstrStage<1, [P440_IEXE2, P440_JEXE2]>,
InstrStage<1, [P440_IWB, P440_JWB]>],
[2, 0, 0],
[P440_GPR_Bypass,
P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntISEL, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC, P440_LRACC]>,
InstrStage<1, [P440_IEXE1, P440_JEXE1]>,
InstrStage<1, [P440_IEXE2, P440_JEXE2]>,
InstrStage<1, [P440_IWB, P440_JWB]>],
[2, 0, 0, 0],
[P440_GPR_Bypass,
P440_GPR_Bypass, P440_GPR_Bypass, NoBypass]>,
InstrItinData<IIC_IntCompare, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC, P440_LRACC]>,
InstrStage<1, [P440_IEXE1, P440_JEXE1]>,
InstrStage<1, [P440_IEXE2, P440_JEXE2]>,
InstrStage<1, [P440_IWB, P440_JWB]>],
[2, 0, 0],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntDivW, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<33, [P440_IWB]>],
[36, 0, 0],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntMFFS, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[3, 0, 0],
[P440_GPR_Bypass,
P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntMTFSB0, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[3, 0, 0],
[P440_GPR_Bypass,
P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntMulHW, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0, 0],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntMulHWU, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0, 0],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntMulLI, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0, 0],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntRotate, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC, P440_LRACC]>,
InstrStage<1, [P440_IEXE1, P440_JEXE1]>,
InstrStage<1, [P440_IEXE2, P440_JEXE2]>,
InstrStage<1, [P440_IWB, P440_JWB]>],
[2, 0, 0],
[P440_GPR_Bypass,
P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntShift, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC, P440_LRACC]>,
InstrStage<1, [P440_IEXE1, P440_JEXE1]>,
InstrStage<1, [P440_IEXE2, P440_JEXE2]>,
InstrStage<1, [P440_IWB, P440_JWB]>],
[2, 0, 0],
[P440_GPR_Bypass,
P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_IntTrapW, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[2, 0],
[P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_BrB, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_BrCR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0, 0],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_BrMCR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0, 0],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_BrMCRX, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0, 0],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStDCBA, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStDCBF, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStDCBI, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLoad, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[5, 1, 1],
[P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLoadUpd,[InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[5, 2, 1, 1],
[P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLoadUpdX,[InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[5, 2, 1, 1],
[P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStStore, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[1, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStStoreUpd,[InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[2, 1, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStICBI, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStSTFD, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[1, 1, 1],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStSTFDU, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[2, 1, 1, 1],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLFD, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[5, 1, 1],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLFDU, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[5, 2, 1, 1],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLFDUX, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[5, 2, 1, 1],
[NoBypass, P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLHA, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLHAU, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLHAUX, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLMW, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStLWARX, [InstrStage<1, [P440_DISS1]>,
InstrStage<1, [P440_IRACC], 0>,
InstrStage<4, [P440_LWARX_Hold], 0>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStSTD, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStSTDU, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[2, 1, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStSTDUX, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<2, [P440_LWB]>],
[2, 1, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStSTDCX, [InstrStage<1, [P440_DISS1]>,
InstrStage<1, [P440_IRACC], 0>,
InstrStage<4, [P440_LWARX_Hold], 0>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStSTWCX, [InstrStage<1, [P440_DISS1]>,
InstrStage<1, [P440_IRACC], 0>,
InstrStage<4, [P440_LWARX_Hold], 0>,
InstrStage<1, [P440_LRACC]>,
InstrStage<1, [P440_AGEN]>,
InstrStage<1, [P440_CRD]>,
InstrStage<1, [P440_LWB]>],
[4, 1, 1],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_LdStSync, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_LRACC]>,
InstrStage<3, [P440_AGEN], 1>,
InstrStage<2, [P440_CRD], 1>,
InstrStage<1, [P440_LWB]>]>,
InstrItinData<IIC_SprISYNC, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_FRACC], 0>,
InstrStage<1, [P440_LRACC], 0>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_FEXE1], 0>,
InstrStage<1, [P440_AGEN], 0>,
InstrStage<1, [P440_JEXE1], 0>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_FEXE2], 0>,
InstrStage<1, [P440_CRD], 0>,
InstrStage<1, [P440_JEXE2], 0>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<6, [P440_FEXE3], 0>,
InstrStage<6, [P440_LWB], 0>,
InstrStage<6, [P440_JWB], 0>,
InstrStage<6, [P440_IWB]>]>,
InstrItinData<IIC_SprMFSR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[2, 0],
[P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprMTMSR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[2, 0],
[P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprMTSR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<3, [P440_IWB]>],
[5, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprTLBSYNC, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>]>,
InstrItinData<IIC_SprMFCR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprMFMSR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[3, 0],
[P440_GPR_Bypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprMFSPR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<3, [P440_IWB]>],
[6, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprMFTB, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<3, [P440_IWB]>],
[6, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprMTSPR, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<3, [P440_IWB]>],
[6, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprMTSRIN, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<3, [P440_IWB]>],
[6, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprRFI, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_SprSC, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_IRACC]>,
InstrStage<1, [P440_IEXE1]>,
InstrStage<1, [P440_IEXE2]>,
InstrStage<1, [P440_IWB]>],
[4, 0],
[NoBypass, P440_GPR_Bypass]>,
InstrItinData<IIC_FPGeneral, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_FRACC]>,
InstrStage<1, [P440_FEXE1]>,
InstrStage<1, [P440_FEXE2]>,
InstrStage<1, [P440_FEXE3]>,
InstrStage<1, [P440_FEXE4]>,
InstrStage<1, [P440_FEXE5]>,
InstrStage<1, [P440_FEXE6]>,
InstrStage<1, [P440_FWB]>],
[6, 0, 0],
[P440_FPR_Bypass,
P440_FPR_Bypass, P440_FPR_Bypass]>,
InstrItinData<IIC_FPAddSub, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_FRACC]>,
InstrStage<1, [P440_FEXE1]>,
InstrStage<1, [P440_FEXE2]>,
InstrStage<1, [P440_FEXE3]>,
InstrStage<1, [P440_FEXE4]>,
InstrStage<1, [P440_FEXE5]>,
InstrStage<1, [P440_FEXE6]>,
InstrStage<1, [P440_FWB]>],
[6, 0, 0],
[P440_FPR_Bypass,
P440_FPR_Bypass, P440_FPR_Bypass]>,
InstrItinData<IIC_FPCompare, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_FRACC]>,
InstrStage<1, [P440_FEXE1]>,
InstrStage<1, [P440_FEXE2]>,
InstrStage<1, [P440_FEXE3]>,
InstrStage<1, [P440_FEXE4]>,
InstrStage<1, [P440_FEXE5]>,
InstrStage<1, [P440_FEXE6]>,
InstrStage<1, [P440_FWB]>],
[6, 0, 0],
[P440_FPR_Bypass, P440_FPR_Bypass,
P440_FPR_Bypass]>,
InstrItinData<IIC_FPDivD, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_FRACC]>,
InstrStage<1, [P440_FEXE1]>,
InstrStage<1, [P440_FEXE2]>,
InstrStage<1, [P440_FEXE3]>,
InstrStage<1, [P440_FEXE4]>,
InstrStage<1, [P440_FEXE5]>,
InstrStage<1, [P440_FEXE6]>,
InstrStage<25, [P440_FWB]>],
[31, 0, 0],
[NoBypass, P440_FPR_Bypass, P440_FPR_Bypass]>,
InstrItinData<IIC_FPDivS, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_FRACC]>,
InstrStage<1, [P440_FEXE1]>,
InstrStage<1, [P440_FEXE2]>,
InstrStage<1, [P440_FEXE3]>,
InstrStage<1, [P440_FEXE4]>,
InstrStage<1, [P440_FEXE5]>,
InstrStage<1, [P440_FEXE6]>,
InstrStage<13, [P440_FWB]>],
[19, 0, 0],
[NoBypass, P440_FPR_Bypass, P440_FPR_Bypass]>,
InstrItinData<IIC_FPFused, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_FRACC]>,
InstrStage<1, [P440_FEXE1]>,
InstrStage<1, [P440_FEXE2]>,
InstrStage<1, [P440_FEXE3]>,
InstrStage<1, [P440_FEXE4]>,
InstrStage<1, [P440_FEXE5]>,
InstrStage<1, [P440_FEXE6]>,
InstrStage<1, [P440_FWB]>],
[6, 0, 0, 0],
[P440_FPR_Bypass,
P440_FPR_Bypass, P440_FPR_Bypass,
P440_FPR_Bypass]>,
InstrItinData<IIC_FPRes, [InstrStage<1, [P440_DISS1, P440_DISS2]>,
InstrStage<1, [P440_FRACC]>,
InstrStage<1, [P440_FEXE1]>,
InstrStage<1, [P440_FEXE2]>,
InstrStage<1, [P440_FEXE3]>,
InstrStage<1, [P440_FEXE4]>,
InstrStage<1, [P440_FEXE5]>,
InstrStage<1, [P440_FEXE6]>,
InstrStage<1, [P440_FWB]>],
[6, 0],
[P440_FPR_Bypass, P440_FPR_Bypass]>
]>;
// ===---------------------------------------------------------------------===//
// PPC440 machine model for scheduling and other instruction cost heuristics.
def PPC440Model : SchedMachineModel {
let IssueWidth = 2; // 2 instructions are dispatched per cycle.
let MinLatency = -1; // OperandCycles are interpreted as MinLatency.
let LoadLatency = 5; // Optimistic load latency assuming bypass.
// This is overriden by OperandCycles if the
// Itineraries are queried instead.
let Itineraries = PPC440Itineraries;
}
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