406 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			TableGen
		
	
	
	
			
		
		
	
	
			406 lines
		
	
	
		
			23 KiB
		
	
	
	
		
			TableGen
		
	
	
	
| //===-- PPCScheduleP8.td - PPC P8 Scheduling Definitions ---*- tablegen -*-===//
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| //
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| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is distributed under the University of Illinois Open Source
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| // License. See LICENSE.TXT for details.
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| //
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| //===----------------------------------------------------------------------===//
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| //
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| // This file defines the itinerary class data for the POWER8 processor.
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| //
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| //===----------------------------------------------------------------------===//
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| 
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| // Scheduling for the P8 involves tracking two types of resources:
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| //  1. The dispatch bundle slots
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| //  2. The functional unit resources
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| 
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| // Dispatch units:
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| def P8_DU1    : FuncUnit;
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| def P8_DU2    : FuncUnit;
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| def P8_DU3    : FuncUnit;
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| def P8_DU4    : FuncUnit;
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| def P8_DU5    : FuncUnit;
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| def P8_DU6    : FuncUnit;
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| def P8_DU7    : FuncUnit; // Only branch instructions will use DU7,DU8
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| def P8_DU8    : FuncUnit;
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| 
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| // 10 insns per cycle (2-LU, 2-LSU, 2-FXU, 2-FPU, 1-CRU, 1-BRU).
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| 
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| def P8_LU1     : FuncUnit; // Loads or fixed-point operations 1
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| def P8_LU2     : FuncUnit; // Loads or fixed-point operations 2
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| 
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| // Load/Store pipelines can handle Stores, fixed-point loads, and simple
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| // fixed-point operations.
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| def P8_LSU1    : FuncUnit; // Load/Store pipeline 1
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| def P8_LSU2    : FuncUnit; // Load/Store pipeline 2
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| 
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| // Fixed Point unit
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| def P8_FXU1    : FuncUnit; // FX pipeline 1
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| def P8_FXU2    : FuncUnit; // FX pipeline 2
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| 
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| // The Floating-Point Unit (FPU) and Vector Media Extension (VMX) units
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| // are combined on P7 and newer into a Vector Scalar Unit (VSU).
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| // The P8 Instruction latency documents still refers to the unit as the
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| // FPU, so keep in mind that FPU==VSU.
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| // In contrast to the P7, the VMX units on P8 are symmetric, so no need to
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| // split vector integer ops or 128-bit load/store/perms to the specific units.
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| def P8_FPU1    : FuncUnit; // VS pipeline 1
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| def P8_FPU2    : FuncUnit; // VS pipeline 2
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| 
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| def P8_CRU    : FuncUnit; // CR unit (CR logicals and move-from-SPRs)
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| def P8_BRU    : FuncUnit; // BR unit
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| 
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| def P8Itineraries : ProcessorItineraries<
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|   [P8_DU1, P8_DU2, P8_DU3, P8_DU4, P8_DU5, P8_DU6, P8_DU7, P8_DU8,
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|    P8_LU1, P8_LU2, P8_LSU1, P8_LSU2, P8_FXU1, P8_FXU2,
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|    P8_FPU1, P8_FPU2, P8_CRU, P8_BRU], [], [
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|   InstrItinData<IIC_IntSimple   , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2,
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|                                                   P8_LU1, P8_LU2,
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|                                                   P8_LSU1, P8_LSU2]>],
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_IntGeneral  , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2, P8_LU1,
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|                                                   P8_LU2, P8_LSU1, P8_LSU2]>],
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_IntISEL,      [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2], 0>,
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|                                    InstrStage<1, [P8_BRU]>],
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|                                   [1, 1, 1, 1]>,
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|   InstrItinData<IIC_IntCompare  , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_IntDivW     , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<15, [P8_FXU1, P8_FXU2]>],
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|                                   [15, 1, 1]>,
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|   InstrItinData<IIC_IntDivD     , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<23, [P8_FXU1, P8_FXU2]>],
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|                                   [23, 1, 1]>,
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|   InstrItinData<IIC_IntMulHW    , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [4, 1, 1]>,
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|   InstrItinData<IIC_IntMulHWU   , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [4, 1, 1]>,
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|   InstrItinData<IIC_IntMulLI    , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [4, 1, 1]>,
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|   InstrItinData<IIC_IntRotate   , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                    [1, 1, 1]>,
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|   InstrItinData<IIC_IntRotateD  , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                    [1, 1, 1]>,
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|   InstrItinData<IIC_IntShift    , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_IntTrapW    , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [1, 1]>,
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|   InstrItinData<IIC_IntTrapD    , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [1, 1]>,
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|   InstrItinData<IIC_BrB         , [InstrStage<1, [P8_DU7, P8_DU8], 0>,
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|                                    InstrStage<1, [P8_BRU]>],
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|                                   [3, 1, 1]>,
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|   // FIXME - the Br* groups below are not branch related, so should probably
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|   // be renamed.
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|   // IIC_BrCR consists of the cr* instructions.  (crand,crnor,creqv, etc).
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|   // and should be 'First' in dispatch.
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|   InstrItinData<IIC_BrCR        , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_CRU]>],
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|                                   [3, 1, 1]>,
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|   // IIC_BrMCR consists of the mcrf instruction.
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|   InstrItinData<IIC_BrMCR       , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_CRU]>],
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|                                   [3, 1, 1]>,
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|   // IIC_BrMCRX consists of mcrxr (obsolete instruction) and mtcrf, which
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|   // should be first in the dispatch group.
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|   InstrItinData<IIC_BrMCRX      , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [3, 1, 1]>,
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|   InstrItinData<IIC_BrMCRX      , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [3, 1]>,
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|   InstrItinData<IIC_LdStLoad    , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2]>],
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|                                   [2, 1, 1]>,
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|   InstrItinData<IIC_LdStLoadUpd , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2 ], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [2, 2, 1, 1]>,
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|   // Update-Indexed form loads/stores are no longer first and last in the
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|   // dispatch group.  They are simply cracked, so require DU1,DU2.
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|   InstrItinData<IIC_LdStLoadUpdX, [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [3, 3, 1, 1]>,
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|   InstrItinData<IIC_LdStLD      , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2]>],
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|                                   [2, 1, 1]>,
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|   InstrItinData<IIC_LdStLDU     , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [2, 2, 1, 1]>,
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|   InstrItinData<IIC_LdStLDUX    , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [3, 3, 1, 1]>,
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|   InstrItinData<IIC_LdStLFD     , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LU1, P8_LU2]>],
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|                                   [3, 1, 1]>,
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|   InstrItinData<IIC_LdStLVecX   , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LU1, P8_LU2]>],
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|                                   [3, 1, 1]>,
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|   InstrItinData<IIC_LdStLFDU    , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LU1, P8_LU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [3, 3, 1, 1]>,
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|   InstrItinData<IIC_LdStLFDUX   , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LU1, P8_LU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [3, 3, 1, 1]>,
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|   InstrItinData<IIC_LdStLHA     , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2,
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|                                                   P8_LU1, P8_LU2]>],
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|                                   [3, 1, 1]>,
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|   InstrItinData<IIC_LdStLHAU    , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [4, 4, 1, 1]>,
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|   // first+last in dispatch group.
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|   InstrItinData<IIC_LdStLHAUX   , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_DU3], 0>,
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|                                    InstrStage<1, [P8_DU4], 0>,
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|                                    InstrStage<1, [P8_DU5], 0>,
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|                                    InstrStage<1, [P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [4, 4, 1, 1]>,
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|   InstrItinData<IIC_LdStLWA     , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2]>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [3, 1, 1]>,
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|   InstrItinData<IIC_LdStLWARX,    [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_DU3], 0>,
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|                                    InstrStage<1, [P8_DU4], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2]>],
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|                                   [3, 1, 1]>,
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|   // first+last
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|   InstrItinData<IIC_LdStLDARX,    [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_DU3], 0>,
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|                                    InstrStage<1, [P8_DU4], 0>,
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|                                    InstrStage<1, [P8_DU5], 0>,
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|                                    InstrStage<1, [P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2]>],
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|                                   [3, 1, 1]>,
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|   InstrItinData<IIC_LdStLMW     , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2,
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|                                                   P8_LU1, P8_LU2]>],
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|                                   [2, 1, 1]>,
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| // Stores are dual-issued from the issue queue, so may only take up one
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| // dispatch slot.  The instruction will be broken into two IOPS. The agen
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| // op is issued to the LSU, and the data op (register fetch) is issued
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| // to either the LU (GPR store) or the VSU (FPR store).
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|   InstrItinData<IIC_LdStStore   , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2]>,
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|                                    InstrStage<1, [P8_LU1, P8_LU2]>],
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_LdStSTD     , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LU1, P8_LU2,
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|                                                   P8_LSU1, P8_LSU2]>]
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_LdStSTDU    , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LU1, P8_LU2,
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|                                                   P8_LSU1, P8_LSU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [2, 1, 1, 1]>,
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|   // First+last
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|   InstrItinData<IIC_LdStSTDUX   , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_DU3], 0>,
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|                                    InstrStage<1, [P8_DU4], 0>,
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|                                    InstrStage<1, [P8_DU5], 0>,
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|                                    InstrStage<1, [P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
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|                                   [2, 1, 1, 1]>,
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|   InstrItinData<IIC_LdStSTFD    , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2], 0>,
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|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_LdStSTFDU   , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2], 0>,
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|                                    InstrStage<1, [P8_FXU1, P8_FXU2], 0>,
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|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
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|                                   [2, 1, 1, 1]>,
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|   InstrItinData<IIC_LdStSTVEBX  , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
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|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2], 0>,
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|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_LdStSTDCX   , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_DU3], 0>,
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|                                    InstrStage<1, [P8_DU4], 0>,
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|                                    InstrStage<1, [P8_DU5], 0>,
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|                                    InstrStage<1, [P8_DU6], 0>,
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|                                    InstrStage<1, [P8_LSU1, P8_LSU2], 0>,
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|                                    InstrStage<1, [P8_LU1, P8_LU2]>],
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|                                   [1, 1, 1]>,
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|   InstrItinData<IIC_LdStSTWCX   , [InstrStage<1, [P8_DU1], 0>,
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|                                    InstrStage<1, [P8_DU2], 0>,
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|                                    InstrStage<1, [P8_DU3], 0>,
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|                                    InstrStage<1, [P8_DU4], 0>,
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|                                    InstrStage<1, [P8_DU5], 0>,
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|                                    InstrStage<1, [P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_LSU1, P8_LSU2], 0>,
 | |
|                                    InstrStage<1, [P8_LU1, P8_LU2]>],
 | |
|                                   [1, 1, 1]>,
 | |
|   InstrItinData<IIC_SprMFCR     , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_CRU]>],
 | |
|                                   [6, 1]>,
 | |
|   InstrItinData<IIC_SprMFCRF    , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_CRU]>],
 | |
|                                   [3, 1]>,
 | |
|   InstrItinData<IIC_SprMTSPR    , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_FXU1, P8_FXU2]>],
 | |
|                                   [4, 1]>, // mtctr
 | |
|   InstrItinData<IIC_FPGeneral   , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [5, 1, 1]>,
 | |
|   InstrItinData<IIC_FPAddSub    , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [5, 1, 1]>,
 | |
|   InstrItinData<IIC_FPCompare   , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [8, 1, 1]>,
 | |
|   InstrItinData<IIC_FPDivD      , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [33, 1, 1]>,
 | |
|   InstrItinData<IIC_FPDivS      , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [27, 1, 1]>,
 | |
|   InstrItinData<IIC_FPSqrtD     , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [44, 1, 1]>,
 | |
|   InstrItinData<IIC_FPSqrtS     , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [32, 1, 1]>,
 | |
|   InstrItinData<IIC_FPFused     , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [5, 1, 1, 1]>,
 | |
|   InstrItinData<IIC_FPRes       , [InstrStage<1, [P8_DU1, P8_DU2, P8_DU3,
 | |
|                                                   P8_DU4, P8_DU5, P8_DU6], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [5, 1, 1]>,
 | |
|   InstrItinData<IIC_VecGeneral  , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [2, 1, 1]>,
 | |
|   InstrItinData<IIC_VecVSL      , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [2, 1, 1]>,
 | |
|   InstrItinData<IIC_VecVSR      , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [2, 1, 1]>,
 | |
|   InstrItinData<IIC_VecFP       , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [6, 1, 1]>,
 | |
|   InstrItinData<IIC_VecFPCompare, [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [6, 1, 1]>,
 | |
|   InstrItinData<IIC_VecFPRound  , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [6, 1, 1]>,
 | |
|   InstrItinData<IIC_VecComplex  , [InstrStage<1, [P8_DU1], 0>,
 | |
|                                    InstrStage<1, [P8_FPU1, P8_FPU2]>],
 | |
|                                   [7, 1, 1]>,
 | |
|   InstrItinData<IIC_VecPerm     , [InstrStage<1, [P8_DU1, P8_DU2], 0>,
 | |
|                                    InstrStage<1, [P8_FPU2, P8_FPU2]>],
 | |
|                                   [3, 1, 1]>
 | |
| ]>;
 | |
| 
 | |
| // ===---------------------------------------------------------------------===//
 | |
| // P8 machine model for scheduling and other instruction cost heuristics.
 | |
| // P8 has an 8 insn dispatch group (6 non-branch, 2 branch) and can issue up
 | |
| // to 10 insns per cycle (2-LU, 2-LSU, 2-FXU, 2-FPU, 1-CRU, 1-BRU).
 | |
| 
 | |
| def P8Model : SchedMachineModel {
 | |
|   let IssueWidth = 8;  // up to 8 instructions dispatched per cycle.
 | |
|                        // up to six non-branch instructions.
 | |
|                        // up to two branches in a dispatch group.
 | |
| 
 | |
|   let MinLatency = 0;  // Out-of-order dispatch.
 | |
|   let LoadLatency = 3; // Optimistic load latency assuming bypass.
 | |
|                        // This is overriden by OperandCycles if the
 | |
|                        // Itineraries are queried instead.
 | |
|   let MispredictPenalty = 16;
 | |
| 
 | |
|   // Try to make sure we have at least 10 dispatch groups in a loop.
 | |
|   let LoopMicroOpBufferSize = 60;
 | |
| 
 | |
|   let Itineraries = P8Itineraries;
 | |
| }
 | |
| 
 |