forked from OSchip/llvm-project
428 lines
15 KiB
TableGen
428 lines
15 KiB
TableGen
//===-- ARMSchedule.td - ARM Scheduling Definitions --------*- tablegen -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Instruction scheduling annotations for in-order and out-of-order CPUs.
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// These annotations are independent of the itinerary class defined below.
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// Here we define the subtarget independent read/write per-operand resources.
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// The subtarget schedule definitions will then map these to the subtarget's
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// resource usages.
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// For example:
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// The instruction cycle timings table might contain an entry for an operation
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// like the following:
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// Rd <- ADD Rn, Rm, <shift> Rs
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// Uops | Latency from register | Uops - resource requirements - latency
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// 2 | Rn: 1 Rm: 4 Rs: 4 | uop T0, Rm, Rs - P01 - 3
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// | | uopc Rd, Rn, T0 - P01 - 1
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// This is telling us that the result will be available in destination register
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// Rd after a minimum of three cycles after the result in Rm and Rs is available
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// and one cycle after the result in Rn is available. The micro-ops can execute
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// on resource P01.
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// To model this, we need to express that we need to dispatch two micro-ops,
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// that the resource P01 is needed and that the latency to Rn is different than
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// the latency to Rm and Rs. The scheduler can decrease Rn's producer latency by
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// two.
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// We will do this by assigning (abstract) resources to register defs/uses.
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// ARMSchedule.td:
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// def WriteALUsr : SchedWrite;
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// def ReadAdvanceALUsr : ScheRead;
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//
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// ARMInstrInfo.td:
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// def ADDrs : I<>, Sched<[WriteALUsr, ReadAdvanceALUsr, ReadDefault,
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// ReadDefault]> { ...}
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// ReadAdvance read resources allow us to define "pipeline by-passes" or
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// shorter latencies to certain registers as needed in the example above.
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// The "ReadDefault" can be omitted.
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// Next, the subtarget td file assigns resources to the abstract resources
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// defined here.
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// ARMScheduleSubtarget.td:
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// // Resources.
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// def P01 : ProcResource<3>; // ALU unit (3 of it).
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// ...
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// // Resource usages.
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// def : WriteRes<WriteALUsr, [P01, P01]> {
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// Latency = 4; // Latency of 4.
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// NumMicroOps = 2; // Dispatch 2 micro-ops.
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// // The two instances of resource P01 are occupied for one cycle. It is one
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// // cycle because these resources happen to be pipelined.
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// ResourceCycles = [1, 1];
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// }
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// def : ReadAdvance<ReadAdvanceALUsr, 3>;
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//===----------------------------------------------------------------------===//
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// Sched definitions for integer pipeline instructions
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//
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// Basic ALU operation.
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def WriteALU : SchedWrite;
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def ReadALU : SchedRead;
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// Basic ALU with shifts.
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def WriteALUsi : SchedWrite; // Shift by immediate.
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def WriteALUsr : SchedWrite; // Shift by register.
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def WriteALUSsr : SchedWrite; // Shift by register (flag setting).
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def ReadALUsr : SchedRead; // Some operands are read later.
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// Compares.
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def WriteCMP : SchedWrite;
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def WriteCMPsi : SchedWrite;
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def WriteCMPsr : SchedWrite;
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// Multiplys.
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def WriteMUL16 : SchedWrite; // 16-bit multiply.
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def WriteMUL32 : SchedWrite; // 32-bit multiply.
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def WriteMUL64Lo : SchedWrite; // 64-bit result. Low reg.
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def WriteMUL64Hi : SchedWrite; // 64-bit result. High reg.
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def ReadMUL : SchedRead;
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// Multiply-accumulates.
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def WriteMAC16 : SchedWrite; // 16-bit mac.
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def WriteMAC32 : SchedWrite; // 32-bit mac.
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def WriteMAC64Lo : SchedWrite; // 64-bit mac. Low reg.
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def WriteMAC64Hi : SchedWrite; // 64-bit mac. High reg.
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def ReadMAC : SchedRead;
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// Divisions.
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def WriteDIV : SchedWrite;
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// Loads/Stores.
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def WriteLd : SchedWrite;
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def WritePreLd : SchedWrite;
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def WriteST : SchedWrite;
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// Branches.
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def WriteBr : SchedWrite;
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def WriteBrL : SchedWrite;
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def WriteBrTbl : SchedWrite;
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// Noop.
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def WriteNoop : SchedWrite;
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//===----------------------------------------------------------------------===//
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// Sched definitions for floating-point and neon instructions
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//
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// Floating point conversions
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def WriteFPCVT : SchedWrite;
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def WriteFPMOV : SchedWrite; // FP -> GPR and vice-versa
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// ALU operations (32/64-bit)
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def WriteFPALU32 : SchedWrite;
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def WriteFPALU64 : SchedWrite;
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// Multiplication
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def WriteFPMUL32 : SchedWrite;
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def WriteFPMUL64 : SchedWrite;
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def ReadFPMUL : SchedRead; // multiplier read
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def ReadFPMAC : SchedRead; // accumulator read
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// Multiply-accumulate
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def WriteFPMAC32 : SchedWrite;
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def WriteFPMAC64 : SchedWrite;
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// Division
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def WriteFPDIV32 : SchedWrite;
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def WriteFPDIV64 : SchedWrite;
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// Square-root
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def WriteFPSQRT32 : SchedWrite;
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def WriteFPSQRT64 : SchedWrite;
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// Vector load and stores
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def WriteVLD1 : SchedWrite;
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def WriteVLD2 : SchedWrite;
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def WriteVLD3 : SchedWrite;
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def WriteVLD4 : SchedWrite;
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def WriteVST1 : SchedWrite;
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def WriteVST2 : SchedWrite;
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def WriteVST3 : SchedWrite;
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def WriteVST4 : SchedWrite;
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// Define TII for use in SchedVariant Predicates.
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def : PredicateProlog<[{
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const ARMBaseInstrInfo *TII =
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static_cast<const ARMBaseInstrInfo*>(SchedModel->getInstrInfo());
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(void)TII;
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const ARMSubtarget *STI =
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static_cast<const ARMSubtarget*>(SchedModel->getSubtargetInfo());
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(void)STI;
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}]>;
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def IsPredicatedPred : SchedPredicate<[{TII->isPredicated(*MI)}]>;
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//===----------------------------------------------------------------------===//
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// Instruction Itinerary classes used for ARM
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//
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def IIC_iALUx : InstrItinClass;
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def IIC_iALUi : InstrItinClass;
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def IIC_iALUr : InstrItinClass;
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def IIC_iALUsi : InstrItinClass;
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def IIC_iALUsir : InstrItinClass;
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def IIC_iALUsr : InstrItinClass;
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def IIC_iBITi : InstrItinClass;
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def IIC_iBITr : InstrItinClass;
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def IIC_iBITsi : InstrItinClass;
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def IIC_iBITsr : InstrItinClass;
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def IIC_iUNAr : InstrItinClass;
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def IIC_iUNAsi : InstrItinClass;
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def IIC_iEXTr : InstrItinClass;
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def IIC_iEXTAr : InstrItinClass;
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def IIC_iEXTAsr : InstrItinClass;
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def IIC_iCMPi : InstrItinClass;
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def IIC_iCMPr : InstrItinClass;
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def IIC_iCMPsi : InstrItinClass;
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def IIC_iCMPsr : InstrItinClass;
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def IIC_iTSTi : InstrItinClass;
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def IIC_iTSTr : InstrItinClass;
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def IIC_iTSTsi : InstrItinClass;
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def IIC_iTSTsr : InstrItinClass;
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def IIC_iMOVi : InstrItinClass;
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def IIC_iMOVr : InstrItinClass;
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def IIC_iMOVsi : InstrItinClass;
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def IIC_iMOVsr : InstrItinClass;
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def IIC_iMOVix2 : InstrItinClass;
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def IIC_iMOVix2addpc : InstrItinClass;
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def IIC_iMOVix2ld : InstrItinClass;
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def IIC_iMVNi : InstrItinClass;
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def IIC_iMVNr : InstrItinClass;
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def IIC_iMVNsi : InstrItinClass;
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def IIC_iMVNsr : InstrItinClass;
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def IIC_iCMOVi : InstrItinClass;
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def IIC_iCMOVr : InstrItinClass;
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def IIC_iCMOVsi : InstrItinClass;
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def IIC_iCMOVsr : InstrItinClass;
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def IIC_iCMOVix2 : InstrItinClass;
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def IIC_iMUL16 : InstrItinClass;
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def IIC_iMAC16 : InstrItinClass;
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def IIC_iMUL32 : InstrItinClass;
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def IIC_iMAC32 : InstrItinClass;
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def IIC_iMUL64 : InstrItinClass;
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def IIC_iMAC64 : InstrItinClass;
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def IIC_iDIV : InstrItinClass;
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def IIC_iLoad_i : InstrItinClass;
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def IIC_iLoad_r : InstrItinClass;
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def IIC_iLoad_si : InstrItinClass;
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def IIC_iLoad_iu : InstrItinClass;
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def IIC_iLoad_ru : InstrItinClass;
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def IIC_iLoad_siu : InstrItinClass;
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def IIC_iLoad_bh_i : InstrItinClass;
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def IIC_iLoad_bh_r : InstrItinClass;
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def IIC_iLoad_bh_si : InstrItinClass;
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def IIC_iLoad_bh_iu : InstrItinClass;
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def IIC_iLoad_bh_ru : InstrItinClass;
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def IIC_iLoad_bh_siu : InstrItinClass;
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def IIC_iLoad_d_i : InstrItinClass;
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def IIC_iLoad_d_r : InstrItinClass;
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def IIC_iLoad_d_ru : InstrItinClass;
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def IIC_iLoad_m : InstrItinClass;
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def IIC_iLoad_mu : InstrItinClass;
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def IIC_iLoad_mBr : InstrItinClass;
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def IIC_iPop : InstrItinClass;
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def IIC_iPop_Br : InstrItinClass;
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def IIC_iLoadiALU : InstrItinClass;
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def IIC_iStore_i : InstrItinClass;
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def IIC_iStore_r : InstrItinClass;
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def IIC_iStore_si : InstrItinClass;
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def IIC_iStore_iu : InstrItinClass;
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def IIC_iStore_ru : InstrItinClass;
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def IIC_iStore_siu : InstrItinClass;
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def IIC_iStore_bh_i : InstrItinClass;
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def IIC_iStore_bh_r : InstrItinClass;
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def IIC_iStore_bh_si : InstrItinClass;
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def IIC_iStore_bh_iu : InstrItinClass;
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def IIC_iStore_bh_ru : InstrItinClass;
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def IIC_iStore_bh_siu : InstrItinClass;
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def IIC_iStore_d_i : InstrItinClass;
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def IIC_iStore_d_r : InstrItinClass;
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def IIC_iStore_d_ru : InstrItinClass;
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def IIC_iStore_m : InstrItinClass;
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def IIC_iStore_mu : InstrItinClass;
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def IIC_Preload : InstrItinClass;
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def IIC_Br : InstrItinClass;
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def IIC_fpSTAT : InstrItinClass;
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def IIC_fpUNA16 : InstrItinClass;
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def IIC_fpUNA32 : InstrItinClass;
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def IIC_fpUNA64 : InstrItinClass;
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def IIC_fpCMP16 : InstrItinClass;
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def IIC_fpCMP32 : InstrItinClass;
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def IIC_fpCMP64 : InstrItinClass;
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def IIC_fpCVTSD : InstrItinClass;
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def IIC_fpCVTDS : InstrItinClass;
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def IIC_fpCVTSH : InstrItinClass;
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def IIC_fpCVTHS : InstrItinClass;
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def IIC_fpCVTIH : InstrItinClass;
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def IIC_fpCVTIS : InstrItinClass;
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def IIC_fpCVTID : InstrItinClass;
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def IIC_fpCVTHI : InstrItinClass;
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def IIC_fpCVTSI : InstrItinClass;
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def IIC_fpCVTDI : InstrItinClass;
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def IIC_fpMOVIS : InstrItinClass;
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def IIC_fpMOVID : InstrItinClass;
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def IIC_fpMOVSI : InstrItinClass;
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def IIC_fpMOVDI : InstrItinClass;
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def IIC_fpALU16 : InstrItinClass;
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def IIC_fpALU32 : InstrItinClass;
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def IIC_fpALU64 : InstrItinClass;
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def IIC_fpMUL16 : InstrItinClass;
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def IIC_fpMUL32 : InstrItinClass;
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def IIC_fpMUL64 : InstrItinClass;
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def IIC_fpMAC16 : InstrItinClass;
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def IIC_fpMAC32 : InstrItinClass;
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def IIC_fpMAC64 : InstrItinClass;
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def IIC_fpFMAC16 : InstrItinClass;
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def IIC_fpFMAC32 : InstrItinClass;
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def IIC_fpFMAC64 : InstrItinClass;
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def IIC_fpDIV16 : InstrItinClass;
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def IIC_fpDIV32 : InstrItinClass;
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def IIC_fpDIV64 : InstrItinClass;
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def IIC_fpSQRT16 : InstrItinClass;
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def IIC_fpSQRT32 : InstrItinClass;
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def IIC_fpSQRT64 : InstrItinClass;
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def IIC_fpLoad16 : InstrItinClass;
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def IIC_fpLoad32 : InstrItinClass;
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def IIC_fpLoad64 : InstrItinClass;
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def IIC_fpLoad_m : InstrItinClass;
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def IIC_fpLoad_mu : InstrItinClass;
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def IIC_fpStore16 : InstrItinClass;
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def IIC_fpStore32 : InstrItinClass;
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def IIC_fpStore64 : InstrItinClass;
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def IIC_fpStore_m : InstrItinClass;
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def IIC_fpStore_mu : InstrItinClass;
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def IIC_VLD1 : InstrItinClass;
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def IIC_VLD1x2 : InstrItinClass;
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def IIC_VLD1x3 : InstrItinClass;
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def IIC_VLD1x4 : InstrItinClass;
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def IIC_VLD1u : InstrItinClass;
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def IIC_VLD1x2u : InstrItinClass;
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def IIC_VLD1x3u : InstrItinClass;
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def IIC_VLD1x4u : InstrItinClass;
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def IIC_VLD1ln : InstrItinClass;
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def IIC_VLD1lnu : InstrItinClass;
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def IIC_VLD1dup : InstrItinClass;
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def IIC_VLD1dupu : InstrItinClass;
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def IIC_VLD2 : InstrItinClass;
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def IIC_VLD2x2 : InstrItinClass;
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def IIC_VLD2u : InstrItinClass;
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def IIC_VLD2x2u : InstrItinClass;
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def IIC_VLD2ln : InstrItinClass;
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def IIC_VLD2lnu : InstrItinClass;
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def IIC_VLD2dup : InstrItinClass;
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def IIC_VLD2dupu : InstrItinClass;
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def IIC_VLD3 : InstrItinClass;
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def IIC_VLD3ln : InstrItinClass;
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def IIC_VLD3u : InstrItinClass;
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def IIC_VLD3lnu : InstrItinClass;
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def IIC_VLD3dup : InstrItinClass;
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def IIC_VLD3dupu : InstrItinClass;
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def IIC_VLD4 : InstrItinClass;
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def IIC_VLD4ln : InstrItinClass;
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def IIC_VLD4u : InstrItinClass;
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def IIC_VLD4lnu : InstrItinClass;
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def IIC_VLD4dup : InstrItinClass;
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def IIC_VLD4dupu : InstrItinClass;
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def IIC_VST1 : InstrItinClass;
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def IIC_VST1x2 : InstrItinClass;
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def IIC_VST1x3 : InstrItinClass;
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def IIC_VST1x4 : InstrItinClass;
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def IIC_VST1u : InstrItinClass;
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def IIC_VST1x2u : InstrItinClass;
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def IIC_VST1x3u : InstrItinClass;
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def IIC_VST1x4u : InstrItinClass;
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def IIC_VST1ln : InstrItinClass;
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def IIC_VST1lnu : InstrItinClass;
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def IIC_VST2 : InstrItinClass;
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def IIC_VST2x2 : InstrItinClass;
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def IIC_VST2u : InstrItinClass;
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def IIC_VST2x2u : InstrItinClass;
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def IIC_VST2ln : InstrItinClass;
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def IIC_VST2lnu : InstrItinClass;
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def IIC_VST3 : InstrItinClass;
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def IIC_VST3u : InstrItinClass;
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def IIC_VST3ln : InstrItinClass;
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def IIC_VST3lnu : InstrItinClass;
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def IIC_VST4 : InstrItinClass;
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def IIC_VST4u : InstrItinClass;
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def IIC_VST4ln : InstrItinClass;
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def IIC_VST4lnu : InstrItinClass;
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def IIC_VUNAD : InstrItinClass;
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def IIC_VUNAQ : InstrItinClass;
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def IIC_VBIND : InstrItinClass;
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def IIC_VBINQ : InstrItinClass;
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def IIC_VPBIND : InstrItinClass;
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def IIC_VFMULD : InstrItinClass;
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def IIC_VFMULQ : InstrItinClass;
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def IIC_VMOV : InstrItinClass;
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def IIC_VMOVImm : InstrItinClass;
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def IIC_VMOVD : InstrItinClass;
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def IIC_VMOVQ : InstrItinClass;
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def IIC_VMOVIS : InstrItinClass;
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def IIC_VMOVID : InstrItinClass;
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def IIC_VMOVISL : InstrItinClass;
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def IIC_VMOVSI : InstrItinClass;
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def IIC_VMOVDI : InstrItinClass;
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def IIC_VMOVN : InstrItinClass;
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def IIC_VPERMD : InstrItinClass;
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def IIC_VPERMQ : InstrItinClass;
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def IIC_VPERMQ3 : InstrItinClass;
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def IIC_VMACD : InstrItinClass;
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def IIC_VMACQ : InstrItinClass;
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def IIC_VFMACD : InstrItinClass;
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def IIC_VFMACQ : InstrItinClass;
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def IIC_VRECSD : InstrItinClass;
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def IIC_VRECSQ : InstrItinClass;
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def IIC_VCNTiD : InstrItinClass;
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def IIC_VCNTiQ : InstrItinClass;
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def IIC_VUNAiD : InstrItinClass;
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def IIC_VUNAiQ : InstrItinClass;
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def IIC_VQUNAiD : InstrItinClass;
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def IIC_VQUNAiQ : InstrItinClass;
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def IIC_VBINiD : InstrItinClass;
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def IIC_VBINiQ : InstrItinClass;
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def IIC_VSUBiD : InstrItinClass;
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def IIC_VSUBiQ : InstrItinClass;
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def IIC_VBINi4D : InstrItinClass;
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def IIC_VBINi4Q : InstrItinClass;
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def IIC_VSUBi4D : InstrItinClass;
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def IIC_VSUBi4Q : InstrItinClass;
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def IIC_VABAD : InstrItinClass;
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def IIC_VABAQ : InstrItinClass;
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def IIC_VSHLiD : InstrItinClass;
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def IIC_VSHLiQ : InstrItinClass;
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def IIC_VSHLi4D : InstrItinClass;
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def IIC_VSHLi4Q : InstrItinClass;
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def IIC_VPALiD : InstrItinClass;
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def IIC_VPALiQ : InstrItinClass;
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def IIC_VMULi16D : InstrItinClass;
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def IIC_VMULi32D : InstrItinClass;
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def IIC_VMULi16Q : InstrItinClass;
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def IIC_VMULi32Q : InstrItinClass;
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def IIC_VMACi16D : InstrItinClass;
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def IIC_VMACi32D : InstrItinClass;
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def IIC_VMACi16Q : InstrItinClass;
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def IIC_VMACi32Q : InstrItinClass;
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def IIC_VEXTD : InstrItinClass;
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def IIC_VEXTQ : InstrItinClass;
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def IIC_VTB1 : InstrItinClass;
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def IIC_VTB2 : InstrItinClass;
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def IIC_VTB3 : InstrItinClass;
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def IIC_VTB4 : InstrItinClass;
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def IIC_VTBX1 : InstrItinClass;
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def IIC_VTBX2 : InstrItinClass;
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def IIC_VTBX3 : InstrItinClass;
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def IIC_VTBX4 : InstrItinClass;
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def IIC_VDOTPROD : InstrItinClass;
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//===----------------------------------------------------------------------===//
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// Processor instruction itineraries.
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include "ARMScheduleV6.td"
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include "ARMScheduleA8.td"
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include "ARMScheduleA9.td"
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include "ARMScheduleSwift.td"
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include "ARMScheduleR52.td"
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include "ARMScheduleA57.td"
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include "ARMScheduleM4.td"
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