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+//===-- 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 DIS0 : FuncUnit;
+// def 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 SFX0 : FuncUnit; // Simple unit 0
+// def SFX1 : FuncUnit; // Simple unit 1
+// def BU : FuncUnit; // Branch unit
+// def CFX_DivBypass
+// : FuncUnit; // CFX divide bypass path
+// def CFX_0 : FuncUnit; // CFX pipeline stage 0
+
+def CFX_1 : FuncUnit; // CFX pipeline stage 1
+
+// def LSU_0 : FuncUnit; // LSU pipeline
+// def FPU_0 : FuncUnit; // FPU pipeline
+
+
+def PPCE5500Itineraries : ProcessorItineraries<
+ [DIS0, DIS1, SFX0, SFX1, BU, CFX_DivBypass, CFX_0, CFX_1,
+ LSU_0, FPU_0],
+ [CR_Bypass, GPR_Bypass, FPR_Bypass], [
+ InstrItinData<IntSimple , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1]>],
+ [5, 2, 2], // Latency = 1
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntGeneral , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1]>],
+ [5, 2, 2], // Latency = 1
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntCompare , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1]>],
+ [6, 2, 2], // Latency = 1 or 2
+ [CR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntDivD , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [CFX_0], 0>,
+ InstrStage<26, [CFX_DivBypass]>],
+ [30, 2, 2], // Latency= 4..26, Repeat rate= 4..26
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntDivW , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [CFX_0], 0>,
+ InstrStage<16, [CFX_DivBypass]>],
+ [20, 2, 2], // Latency= 4..16, Repeat rate= 4..16
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntMFFS , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [FPU_0]>],
+ [11], // Latency = 7, Repeat rate = 1
+ [FPR_Bypass]>,
+ InstrItinData<IntMTFSB0 , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<7, [FPU_0]>],
+ [11, 2, 2], // Latency = 7, Repeat rate = 7
+ [NoBypass, NoBypass, NoBypass]>,
+ InstrItinData<IntMulHD , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [CFX_0], 0>,
+ InstrStage<2, [CFX_1]>],
+ [9, 2, 2], // Latency = 4..7, Repeat rate = 2..4
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntMulHW , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [CFX_0], 0>,
+ InstrStage<1, [CFX_1]>],
+ [8, 2, 2], // Latency = 4, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntMulHWU , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [CFX_0], 0>,
+ InstrStage<1, [CFX_1]>],
+ [8, 2, 2], // Latency = 4, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntMulLI , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [CFX_0], 0>,
+ InstrStage<2, [CFX_1]>],
+ [8, 2, 2], // Latency = 4 or 5, Repeat = 2
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntRotate , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1]>],
+ [5, 2, 2], // Latency = 1
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntRotateD , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<2, [SFX0, SFX1]>],
+ [6, 2, 2], // Latency = 2, Repeat rate = 2
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntRotateDI , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1]>],
+ [5, 2, 2], // Latency = 1, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntShift , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<2, [SFX0, SFX1]>],
+ [6, 2, 2], // Latency = 2, Repeat rate = 2
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<IntTrapW , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<2, [SFX0]>],
+ [6, 2], // Latency = 2, Repeat rate = 2
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<BrB , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [BU]>],
+ [5, 2], // Latency = 1
+ [NoBypass, GPR_Bypass]>,
+ InstrItinData<BrCR , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [BU]>],
+ [5, 2, 2], // Latency = 1
+ [CR_Bypass, CR_Bypass, CR_Bypass]>,
+ InstrItinData<BrMCR , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [BU]>],
+ [5, 2], // Latency = 1
+ [CR_Bypass, CR_Bypass]>,
+ InstrItinData<BrMCRX , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [CFX_0]>],
+ [5, 2, 2], // Latency = 1
+ [CR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStDCBA , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStDCBF , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStDCBI , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStLoad , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStLoadUpd , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass],
+ 2>, // 2 micro-ops
+ InstrItinData<LdStLD , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStLDARX , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<3, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 3
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStLDU , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass],
+ 2>, // 2 micro-ops
+ InstrItinData<LdStStore , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [NoBypass, GPR_Bypass]>,
+ InstrItinData<LdStStoreUpd, [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [NoBypass, GPR_Bypass],
+ 2>, // 2 micro-ops
+ InstrItinData<LdStICBI , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [NoBypass, GPR_Bypass]>,
+ InstrItinData<LdStSTFD , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStSTFDU , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass],
+ 2>, // 2 micro-ops
+ InstrItinData<LdStLFD , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [8, 2, 2], // Latency = 4, Repeat rate = 1
+ [FPR_Bypass, GPR_Bypass, GPR_Bypass],
+ 2>, // 2 micro-ops
+ InstrItinData<LdStLFDU , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [8, 2, 2], // Latency = 4, Repeat rate = 1
+ [FPR_Bypass, GPR_Bypass, GPR_Bypass],
+ 2>, // 2 micro-ops
+ InstrItinData<LdStLHA , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStLHAU , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [GPR_Bypass, GPR_Bypass],
+ 2>, // 2 micro-ops
+ InstrItinData<LdStLMW , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<4, [LSU_0]>],
+ [8, 2], // Latency = r+3, Repeat rate = r+3
+ [NoBypass, GPR_Bypass]>,
+ InstrItinData<LdStLWARX , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<3, [LSU_0]>],
+ [7, 2, 2], // Latency = 3, Repeat rate = 3
+ [GPR_Bypass, GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<LdStSTD , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [NoBypass, GPR_Bypass]>,
+ InstrItinData<LdStSTDCX , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [NoBypass, GPR_Bypass]>,
+ InstrItinData<LdStSTDU , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [NoBypass, GPR_Bypass],
+ 2>, // 2 micro-ops
+ InstrItinData<LdStSTWCX , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>],
+ [7, 2], // Latency = 3, Repeat rate = 1
+ [NoBypass, GPR_Bypass]>,
+ InstrItinData<LdStSync , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0]>]>,
+ InstrItinData<SprMTMSR , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<2, [CFX_0]>],
+ [6, 2], // Latency = 2, Repeat rate = 4
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<SprTLBSYNC , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [LSU_0], 0>]>,
+ InstrItinData<SprMFCR , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<5, [CFX_0]>],
+ [9, 2], // Latency = 5, Repeat rate = 5
+ [GPR_Bypass, CR_Bypass]>,
+ InstrItinData<SprMFMSR , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<4, [SFX0]>],
+ [8, 2], // Latency = 4, Repeat rate = 4
+ [GPR_Bypass, GPR_Bypass]>,
+ InstrItinData<SprMFSPR , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [CFX_0]>],
+ [5], // Latency = 1, Repeat rate = 1
+ [GPR_Bypass]>,
+ InstrItinData<SprMFTB , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<4, [CFX_0]>],
+ [8, 2], // Latency = 4, Repeat rate = 4
+ [NoBypass, GPR_Bypass]>,
+ InstrItinData<SprMTSPR , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [SFX0, SFX1]>],
+ [5], // Latency = 1, Repeat rate = 1
+ [GPR_Bypass]>,
+ InstrItinData<FPGeneral , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [FPU_0]>],
+ [11, 2, 2], // Latency = 7, Repeat rate = 1
+ [FPR_Bypass, FPR_Bypass, FPR_Bypass]>,
+ InstrItinData<FPAddSub , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [FPU_0]>],
+ [11, 2, 2], // Latency = 7, Repeat rate = 1
+ [FPR_Bypass, FPR_Bypass, FPR_Bypass]>,
+ InstrItinData<FPCompare , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [FPU_0]>],
+ [11, 2, 2], // Latency = 7, Repeat rate = 1
+ [CR_Bypass, FPR_Bypass, FPR_Bypass]>,
+ InstrItinData<FPDivD , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<31, [FPU_0]>],
+ [39, 2, 2], // Latency = 35, Repeat rate = 31
+ [FPR_Bypass, FPR_Bypass, FPR_Bypass]>,
+ InstrItinData<FPDivS , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<16, [FPU_0]>],
+ [24, 2, 2], // Latency = 20, Repeat rate = 16
+ [FPR_Bypass, FPR_Bypass, FPR_Bypass]>,
+ InstrItinData<FPFused , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<1, [FPU_0]>],
+ [11, 2, 2, 2], // Latency = 7, Repeat rate = 1
+ [FPR_Bypass, FPR_Bypass, FPR_Bypass, FPR_Bypass]>,
+ InstrItinData<FPRes , [InstrStage<1, [DIS0, DIS1], 0>,
+ InstrStage<2, [FPU_0]>],
+ [12, 2], // Latency = 8, Repeat rate = 2
+ [FPR_Bypass, 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 MinLatency = -1; // OperandCycles are interpreted as MinLatency.
+ let LoadLatency = 6; // Optimistic load latency assuming bypass.
+ // This is overriden by OperandCycles if the
+ // Itineraries are queried instead.
+
+ let Itineraries = PPCE5500Itineraries;
+}
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