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//===-- Hexagon.td - Describe the Hexagon Target Machine --*- tablegen -*--===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This is the top level entry point for the Hexagon target.
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// Target-independent interfaces which we are implementing
//===----------------------------------------------------------------------===//
include "llvm/Target/Target.td"
//===----------------------------------------------------------------------===//
// Hexagon Subtarget features.
//===----------------------------------------------------------------------===//
// Hexagon Architectures
def ArchV4: SubtargetFeature<"v4", "HexagonArchVersion", "V4", "Hexagon V4">;
def ArchV5: SubtargetFeature<"v5", "HexagonArchVersion", "V5", "Hexagon V5">;
//===----------------------------------------------------------------------===//
// Hexagon Instruction Predicate Definitions.
//===----------------------------------------------------------------------===//
def HasV5T : Predicate<"Subtarget->hasV5TOps()">;
def NoV5T : Predicate<"!Subtarget->hasV5TOps()">;
def UseMEMOP : Predicate<"Subtarget->useMemOps()">;
def IEEERndNearV5T : Predicate<"Subtarget->modeIEEERndNear()">;
//===----------------------------------------------------------------------===//
// Classes used for relation maps.
//===----------------------------------------------------------------------===//
class ImmRegShl;
// PredRel - Filter class used to relate non-predicated instructions with their
// predicated forms.
class PredRel;
// PredNewRel - Filter class used to relate predicated instructions with their
// predicate-new forms.
class PredNewRel: PredRel;
// ImmRegRel - Filter class used to relate instructions having reg-reg form
// with their reg-imm counterparts.
class ImmRegRel;
// NewValueRel - Filter class used to relate regular store instructions with
// their new-value store form.
class NewValueRel: PredNewRel;
// NewValueRel - Filter class used to relate load/store instructions having
// different addressing modes with each other.
class AddrModeRel: NewValueRel;
//===----------------------------------------------------------------------===//
// Generate mapping table to relate non-predicate instructions with their
// predicated formats - true and false.
//
def getPredOpcode : InstrMapping {
let FilterClass = "PredRel";
// Instructions with the same BaseOpcode and isNVStore values form a row.
let RowFields = ["BaseOpcode", "isNVStore", "PNewValue"];
// Instructions with the same predicate sense form a column.
let ColFields = ["PredSense"];
// The key column is the unpredicated instructions.
let KeyCol = [""];
// Value columns are PredSense=true and PredSense=false
let ValueCols = [["true"], ["false"]];
}
//===----------------------------------------------------------------------===//
// Generate mapping table to relate predicate-true instructions with their
// predicate-false forms
//
def getFalsePredOpcode : InstrMapping {
let FilterClass = "PredRel";
let RowFields = ["BaseOpcode", "PNewValue", "isNVStore", "isBrTaken"];
let ColFields = ["PredSense"];
let KeyCol = ["true"];
let ValueCols = [["false"]];
}
//===----------------------------------------------------------------------===//
// Generate mapping table to relate predicate-false instructions with their
// predicate-true forms
//
def getTruePredOpcode : InstrMapping {
let FilterClass = "PredRel";
let RowFields = ["BaseOpcode", "PNewValue", "isNVStore", "isBrTaken"];
let ColFields = ["PredSense"];
let KeyCol = ["false"];
let ValueCols = [["true"]];
}
//===----------------------------------------------------------------------===//
// Generate mapping table to relate predicated instructions with their .new
// format.
//
def getPredNewOpcode : InstrMapping {
let FilterClass = "PredNewRel";
let RowFields = ["BaseOpcode", "PredSense", "isNVStore", "isBrTaken"];
let ColFields = ["PNewValue"];
let KeyCol = [""];
let ValueCols = [["new"]];
}
//===----------------------------------------------------------------------===//
// Generate mapping table to relate .new predicated instructions with their old
// format.
//
def getPredOldOpcode : InstrMapping {
let FilterClass = "PredNewRel";
let RowFields = ["BaseOpcode", "PredSense", "isNVStore"];
let ColFields = ["PNewValue"];
let KeyCol = ["new"];
let ValueCols = [[""]];
}
//===----------------------------------------------------------------------===//
// Generate mapping table to relate store instructions with their new-value
// format.
//
def getNewValueOpcode : InstrMapping {
let FilterClass = "NewValueRel";
let RowFields = ["BaseOpcode", "PredSense", "PNewValue", "addrMode"];
let ColFields = ["NValueST"];
let KeyCol = ["false"];
let ValueCols = [["true"]];
}
//===----------------------------------------------------------------------===//
// Generate mapping table to relate new-value store instructions with their old
// format.
//
def getNonNVStore : InstrMapping {
let FilterClass = "NewValueRel";
let RowFields = ["BaseOpcode", "PredSense", "PNewValue", "addrMode"];
let ColFields = ["NValueST"];
let KeyCol = ["true"];
let ValueCols = [["false"]];
}
def getBasedWithImmOffset : InstrMapping {
let FilterClass = "AddrModeRel";
let RowFields = ["CextOpcode", "PredSense", "PNewValue", "isNVStore",
"isMEMri", "isFloat"];
let ColFields = ["addrMode"];
let KeyCol = ["Absolute"];
let ValueCols = [["BaseImmOffset"]];
}
def getBaseWithRegOffset : InstrMapping {
let FilterClass = "AddrModeRel";
let RowFields = ["CextOpcode", "PredSense", "PNewValue", "isNVStore"];
let ColFields = ["addrMode"];
let KeyCol = ["BaseImmOffset"];
let ValueCols = [["BaseRegOffset"]];
}
def getRegForm : InstrMapping {
let FilterClass = "ImmRegRel";
let RowFields = ["CextOpcode", "PredSense", "PNewValue"];
let ColFields = ["InputType"];
let KeyCol = ["imm"];
let ValueCols = [["reg"]];
}
def getRegShlForm : InstrMapping {
let FilterClass = "ImmRegShl";
let RowFields = ["CextOpcode", "PredSense", "PNewValue", "isNVStore"];
let ColFields = ["InputType"];
let KeyCol = ["imm"];
let ValueCols = [["reg"]];
}
//===----------------------------------------------------------------------===//
// Register File, Calling Conv, Instruction Descriptions
//===----------------------------------------------------------------------===//
include "HexagonSchedule.td"
include "HexagonRegisterInfo.td"
include "HexagonCallingConv.td"
include "HexagonInstrInfo.td"
include "HexagonIntrinsics.td"
include "HexagonIntrinsicsDerived.td"
def HexagonInstrInfo : InstrInfo;
//===----------------------------------------------------------------------===//
// Hexagon processors supported.
//===----------------------------------------------------------------------===//
class Proc<string Name, SchedMachineModel Model,
list<SubtargetFeature> Features>
: ProcessorModel<Name, Model, Features>;
def : Proc<"hexagonv4", HexagonModelV4,
[ArchV4]>;
def : Proc<"hexagonv5", HexagonModelV4,
[ArchV4, ArchV5]>;
//===----------------------------------------------------------------------===//
// Declare the target which we are implementing
//===----------------------------------------------------------------------===//
def Hexagon : Target {
// Pull in Instruction Info:
let InstructionSet = HexagonInstrInfo;
}
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