//===-- RISCVFeatures.td - RISC-V Features and Extensions --*- tablegen -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//===----------------------------------------------------------------------===//
// RISC-V subtarget features and instruction predicates.
//===----------------------------------------------------------------------===//
// Subclass of SubtargetFeature to be used when the feature is also a RISC-V
// extension. Extensions have a version and may be experimental.
//
// name - Name of the extension in lower case.
// major - Major version of extension.
// minor - Minor version of extension.
// desc - Description of extension.
// implies - Extensions or features implied by this extension.
// fieldname - name of field to create in RISCVSubtarget. By default replaces
// uses the record name by replacing Feature with Has.
// value - Value to assign to the field in RISCVSubtarget when this
// extension is enabled. Usually "true", but can be changed.
class RISCVExtension<string name, int major, int minor, string desc,
list<SubtargetFeature> implies = [],
string fieldname = !subst("Feature", "Has", NAME),
string value = "true">
: SubtargetFeature<name, fieldname, value, desc, implies> {
// MajorVersion - The major version for this extension.
int MajorVersion = major;
// MinorVersion - The minor version for this extension.
int MinorVersion = minor;
// Experimental - Does extension require -menable-experimental-extensions.
bit Experimental = false;
}
// The groupID/bitmask of RISCVExtension is used to retrieve a specific bit value
// from __riscv_feature_bits based on the groupID and bitmask.
// groupID - groupID of extension
// bitPos - bit position of extension bitmask
class RISCVExtensionBitmask<bits<3> groupID, int bitPos> {
int GroupID = groupID;
int BitPos = bitPos;
}
// Version of RISCVExtension to be used for Experimental extensions. This
// sets the Experimental flag and prepends experimental- to the -mattr name.
class RISCVExperimentalExtension<string name, int major, int minor, string desc,
list<RISCVExtension> implies = [],
string fieldname = !subst("Feature", "Has", NAME),
string value = "true">
: RISCVExtension<"experimental-"#name, major, minor, desc, implies,
fieldname, value> {
let Experimental = true;
}
// Integer Extensions
def FeatureStdExtI
: RISCVExtension<"i", 2, 1,
"'I' (Base Integer Instruction Set)">,
RISCVExtensionBitmask<0, 8>;
def FeatureStdExtE
: RISCVExtension<"e", 2, 0,
"Implements RV{32,64}E (provides 16 rather than 32 GPRs)">;
def FeatureStdExtZic64b
: RISCVExtension<"zic64b", 1, 0,
"'Zic64b' (Cache Block Size Is 64 Bytes)">;
def FeatureStdExtZicbom
: RISCVExtension<"zicbom", 1, 0,
"'Zicbom' (Cache-Block Management Instructions)">;
def HasStdExtZicbom : Predicate<"Subtarget->hasStdExtZicbom()">,
AssemblerPredicate<(all_of FeatureStdExtZicbom),
"'Zicbom' (Cache-Block Management Instructions)">;
def FeatureStdExtZicbop
: RISCVExtension<"zicbop", 1, 0,
"'Zicbop' (Cache-Block Prefetch Instructions)">;
def HasStdExtZicbop : Predicate<"Subtarget->hasStdExtZicbop()">,
AssemblerPredicate<(all_of FeatureStdExtZicbop),
"'Zicbop' (Cache-Block Prefetch Instructions)">;
def FeatureStdExtZicboz
: RISCVExtension<"zicboz", 1, 0,
"'Zicboz' (Cache-Block Zero Instructions)">,
RISCVExtensionBitmask<0, 37>;
def HasStdExtZicboz : Predicate<"Subtarget->hasStdExtZicboz()">,
AssemblerPredicate<(all_of FeatureStdExtZicboz),
"'Zicboz' (Cache-Block Zero Instructions)">;
def FeatureStdExtZiccamoa
: RISCVExtension<"ziccamoa", 1, 0,
"'Ziccamoa' (Main Memory Supports All Atomics in A)">;
def FeatureStdExtZiccif
: RISCVExtension<"ziccif", 1, 0,
"'Ziccif' (Main Memory Supports Instruction Fetch with Atomicity Requirement)">;
def FeatureStdExtZicclsm
: RISCVExtension<"zicclsm", 1, 0,
"'Zicclsm' (Main Memory Supports Misaligned Loads/Stores)">;
def FeatureStdExtZiccrse
: RISCVExtension<"ziccrse", 1, 0,
"'Ziccrse' (Main Memory Supports Forward Progress on LR/SC Sequences)">;
def FeatureStdExtZicsr
: RISCVExtension<"zicsr", 2, 0,
"'zicsr' (CSRs)">;
def HasStdExtZicsr : Predicate<"Subtarget->hasStdExtZicsr()">,
AssemblerPredicate<(all_of FeatureStdExtZicsr),
"'Zicsr' (CSRs)">;
def FeatureStdExtZicntr
: RISCVExtension<"zicntr", 2, 0,
"'Zicntr' (Base Counters and Timers)",
[FeatureStdExtZicsr]>;
def FeatureStdExtZicond
: RISCVExtension<"zicond", 1, 0,
"'Zicond' (Integer Conditional Operations)">,
RISCVExtensionBitmask<0, 38>;
def HasStdExtZicond : Predicate<"Subtarget->hasStdExtZicond()">,
AssemblerPredicate<(all_of FeatureStdExtZicond),
"'Zicond' (Integer Conditional Operations)">;
def FeatureStdExtZifencei
: RISCVExtension<"zifencei", 2, 0,
"'Zifencei' (fence.i)">;
def HasStdExtZifencei : Predicate<"Subtarget->hasStdExtZifencei()">,
AssemblerPredicate<(all_of FeatureStdExtZifencei),
"'Zifencei' (fence.i)">;
def FeatureStdExtZihintpause
: RISCVExtension<"zihintpause", 2, 0,
"'Zihintpause' (Pause Hint)">,
RISCVExtensionBitmask<0, 40>;
def HasStdExtZihintpause : Predicate<"Subtarget->hasStdExtZihintpause()">,
AssemblerPredicate<(all_of FeatureStdExtZihintpause),
"'Zihintpause' (Pause Hint)">;
def FeatureStdExtZihintntl
: RISCVExtension<"zihintntl", 1, 0,
"'Zihintntl' (Non-Temporal Locality Hints)">,
RISCVExtensionBitmask<0, 39>;
def HasStdExtZihintntl : Predicate<"Subtarget->hasStdExtZihintntl()">,
AssemblerPredicate<(all_of FeatureStdExtZihintntl),
"'Zihintntl' (Non-Temporal Locality Hints)">;
def FeatureStdExtZihpm
: RISCVExtension<"zihpm", 2, 0,
"'Zihpm' (Hardware Performance Counters)",
[FeatureStdExtZicsr]>;
def FeatureStdExtZimop : RISCVExtension<"zimop", 1, 0,
"'Zimop' (May-Be-Operations)">;
def HasStdExtZimop : Predicate<"Subtarget->hasStdExtZimop()">,
AssemblerPredicate<(all_of FeatureStdExtZimop),
"'Zimop' (May-Be-Operations)">;
def FeatureStdExtZicfilp
: RISCVExperimentalExtension<"zicfilp", 1, 0,
"'Zicfilp' (Landing pad)",
[FeatureStdExtZicsr]>;
def HasStdExtZicfilp : Predicate<"Subtarget->hasStdExtZicfilp()">,
AssemblerPredicate<(all_of FeatureStdExtZicfilp),
"'Zicfilp' (Landing pad)">;
def NoStdExtZicfilp : Predicate<"!Subtarget->hasStdExtZicfilp()">,
AssemblerPredicate<(all_of (not FeatureStdExtZicfilp))>;
def FeatureStdExtZicfiss
: RISCVExperimentalExtension<"zicfiss", 1, 0,
"'Zicfiss' (Shadow stack)",
[FeatureStdExtZicsr, FeatureStdExtZimop]>;
def HasStdExtZicfiss : Predicate<"Subtarget->hasStdExtZicfiss()">,
AssemblerPredicate<(all_of FeatureStdExtZicfiss),
"'Zicfiss' (Shadow stack)">;
def NoHasStdExtZicfiss : Predicate<"!Subtarget->hasStdExtZicfiss()">;
// Multiply Extensions
def FeatureStdExtZmmul
: RISCVExtension<"zmmul", 1, 0,
"'Zmmul' (Integer Multiplication)">;
def HasStdExtZmmul : Predicate<"Subtarget->hasStdExtZmmul()">,
AssemblerPredicate<(all_of FeatureStdExtZmmul),
"'Zmmul' (Integer Multiplication)">;
def FeatureStdExtM
: RISCVExtension<"m", 2, 0,
"'M' (Integer Multiplication and Division)",
[FeatureStdExtZmmul]>,
RISCVExtensionBitmask<0, 12>;
def HasStdExtM : Predicate<"Subtarget->hasStdExtM()">,
AssemblerPredicate<(all_of FeatureStdExtM),
"'M' (Integer Multiplication and Division)">;
// Atomic Extensions
def FeatureStdExtA
: RISCVExtension<"a", 2, 1,
"'A' (Atomic Instructions)">,
RISCVExtensionBitmask<0, 0>;
def HasStdExtA : Predicate<"Subtarget->hasStdExtA()">,
AssemblerPredicate<(all_of FeatureStdExtA),
"'A' (Atomic Instructions)">;
def FeatureStdExtZtso
: RISCVExtension<"ztso", 1, 0,
"'Ztso' (Memory Model - Total Store Order)">,
RISCVExtensionBitmask<0, 47>;
def HasStdExtZtso : Predicate<"Subtarget->hasStdExtZtso()">,
AssemblerPredicate<(all_of FeatureStdExtZtso),
"'Ztso' (Memory Model - Total Store Order)">;
def NotHasStdExtZtso : Predicate<"!Subtarget->hasStdExtZtso()">;
def FeatureStdExtZa64rs : RISCVExtension<"za64rs", 1, 0,
"'Za64rs' (Reservation Set Size of at Most 64 Bytes)">;
def FeatureStdExtZa128rs : RISCVExtension<"za128rs", 1, 0,
"'Za128rs' (Reservation Set Size of at Most 128 Bytes)">;
def FeatureStdExtZaamo
: RISCVExtension<"zaamo", 1, 0,
"'Zaamo' (Atomic Memory Operations)">;
def HasStdExtAOrZaamo
: Predicate<"Subtarget->hasStdExtA() || Subtarget->hasStdExtZaamo()">,
AssemblerPredicate<(any_of FeatureStdExtA, FeatureStdExtZaamo),
"'A' (Atomic Instructions) or "
"'Zaamo' (Atomic Memory Operations)">;
def FeatureStdExtZabha
: RISCVExtension<"zabha", 1, 0,
"'Zabha' (Byte and Halfword Atomic Memory Operations)">;
def HasStdExtZabha : Predicate<"Subtarget->hasStdExtZabha()">,
AssemblerPredicate<(all_of FeatureStdExtZabha),
"'Zabha' (Byte and Halfword Atomic Memory Operations)">;
def FeatureStdExtZacas
: RISCVExtension<"zacas", 1, 0,
"'Zacas' (Atomic Compare-And-Swap Instructions)">,
RISCVExtensionBitmask<0, 26>;
def HasStdExtZacas : Predicate<"Subtarget->hasStdExtZacas()">,
AssemblerPredicate<(all_of FeatureStdExtZacas),
"'Zacas' (Atomic Compare-And-Swap Instructions)">;
def NoStdExtZacas : Predicate<"!Subtarget->hasStdExtZacas()">;
def FeatureStdExtZalasr
: RISCVExperimentalExtension<"zalasr", 0, 1,
"'Zalasr' (Load-Acquire and Store-Release Instructions)">;
def HasStdExtZalasr : Predicate<"Subtarget->hasStdExtZalasr()">,
AssemblerPredicate<(all_of FeatureStdExtZalasr),
"'Zalasr' (Load-Acquire and Store-Release Instructions)">;
def FeatureStdExtZalrsc
: RISCVExtension<"zalrsc", 1, 0,
"'Zalrsc' (Load-Reserved/Store-Conditional)">;
def HasStdExtAOrZalrsc
: Predicate<"Subtarget->hasStdExtA() || Subtarget->hasStdExtZalrsc()">,
AssemblerPredicate<(any_of FeatureStdExtA, FeatureStdExtZalrsc),
"'A' (Atomic Instructions) or "
"'Zalrsc' (Load-Reserved/Store-Conditional)">;
def FeatureStdExtZama16b
: RISCVExtension<"zama16b", 1, 0,
"'Zama16b' (Atomic 16-byte misaligned loads, stores and AMOs)">;
def FeatureStdExtZawrs : RISCVExtension<"zawrs", 1, 0,
"'Zawrs' (Wait on Reservation Set)">;
def HasStdExtZawrs : Predicate<"Subtarget->hasStdExtZawrs()">,
AssemblerPredicate<(all_of FeatureStdExtZawrs),
"'Zawrs' (Wait on Reservation Set)">;
// Floating Point Extensions
def FeatureStdExtF
: RISCVExtension<"f", 2, 2,
"'F' (Single-Precision Floating-Point)",
[FeatureStdExtZicsr]>,
RISCVExtensionBitmask<0, 5>;
def HasStdExtF : Predicate<"Subtarget->hasStdExtF()">,
AssemblerPredicate<(all_of FeatureStdExtF),
"'F' (Single-Precision Floating-Point)">;
def FeatureStdExtD
: RISCVExtension<"d", 2, 2,
"'D' (Double-Precision Floating-Point)",
[FeatureStdExtF]>,
RISCVExtensionBitmask<0, 3>;
def HasStdExtD : Predicate<"Subtarget->hasStdExtD()">,
AssemblerPredicate<(all_of FeatureStdExtD),
"'D' (Double-Precision Floating-Point)">;
def FeatureStdExtZfhmin
: RISCVExtension<"zfhmin", 1, 0,
"'Zfhmin' (Half-Precision Floating-Point Minimal)",
[FeatureStdExtF]>,
RISCVExtensionBitmask<0, 36>;
def HasStdExtZfhmin : Predicate<"Subtarget->hasStdExtZfhmin()">,
AssemblerPredicate<(all_of FeatureStdExtZfhmin),
"'Zfh' (Half-Precision Floating-Point) or "
"'Zfhmin' (Half-Precision Floating-Point Minimal)">;
def FeatureStdExtZfh
: RISCVExtension<"zfh", 1, 0,
"'Zfh' (Half-Precision Floating-Point)",
[FeatureStdExtZfhmin]>,
RISCVExtensionBitmask<0, 35>;
def HasStdExtZfh : Predicate<"Subtarget->hasStdExtZfh()">,
AssemblerPredicate<(all_of FeatureStdExtZfh),
"'Zfh' (Half-Precision Floating-Point)">;
def NoStdExtZfh : Predicate<"!Subtarget->hasStdExtZfh()">;
def FeatureStdExtZfbfmin
: RISCVExtension<"zfbfmin", 1, 0, "'Zfbfmin' (Scalar BF16 Converts)",
[FeatureStdExtF]>;
def HasStdExtZfbfmin : Predicate<"Subtarget->hasStdExtZfbfmin()">,
AssemblerPredicate<(all_of FeatureStdExtZfbfmin),
"'Zfbfmin' (Scalar BF16 Converts)">;
def HasHalfFPLoadStoreMove
: Predicate<"Subtarget->hasHalfFPLoadStoreMove()">,
AssemblerPredicate<(any_of FeatureStdExtZfh, FeatureStdExtZfhmin,
FeatureStdExtZfbfmin),
"'Zfh' (Half-Precision Floating-Point) or "
"'Zfhmin' (Half-Precision Floating-Point Minimal) or "
"'Zfbfmin' (Scalar BF16 Converts)">;
def FeatureStdExtZfa
: RISCVExtension<"zfa", 1, 0,
"'Zfa' (Additional Floating-Point)",
[FeatureStdExtF]>,
RISCVExtensionBitmask<0, 34>;
def HasStdExtZfa : Predicate<"Subtarget->hasStdExtZfa()">,
AssemblerPredicate<(all_of FeatureStdExtZfa),
"'Zfa' (Additional Floating-Point)">;
def FeatureStdExtZfinx
: RISCVExtension<"zfinx", 1, 0,
"'Zfinx' (Float in Integer)",
[FeatureStdExtZicsr]>;
def HasStdExtZfinx : Predicate<"Subtarget->hasStdExtZfinx()">,
AssemblerPredicate<(all_of FeatureStdExtZfinx),
"'Zfinx' (Float in Integer)">;
def HasStdExtFOrZfinx : Predicate<"Subtarget->hasStdExtFOrZfinx()">,
AssemblerPredicate<(any_of FeatureStdExtF,
FeatureStdExtZfinx),
"'F' (Single-Precision Floating-Point) or "
"'Zfinx' (Float in Integer)">;
def FeatureStdExtZdinx
: RISCVExtension<"zdinx", 1, 0,
"'Zdinx' (Double in Integer)",
[FeatureStdExtZfinx]>;
def HasStdExtZdinx : Predicate<"Subtarget->hasStdExtZdinx()">,
AssemblerPredicate<(all_of FeatureStdExtZdinx),
"'Zdinx' (Double in Integer)">;
def FeatureStdExtZhinxmin
: RISCVExtension<"zhinxmin", 1, 0,
"'Zhinxmin' (Half Float in Integer Minimal)",
[FeatureStdExtZfinx]>;
def HasStdExtZhinxmin : Predicate<"Subtarget->hasStdExtZhinxmin()">,
AssemblerPredicate<(all_of FeatureStdExtZhinxmin),
"'Zhinx' (Half Float in Integer) or "
"'Zhinxmin' (Half Float in Integer Minimal)">;
def FeatureStdExtZhinx
: RISCVExtension<"zhinx", 1, 0,
"'Zhinx' (Half Float in Integer)",
[FeatureStdExtZhinxmin]>;
def HasStdExtZhinx : Predicate<"Subtarget->hasStdExtZhinx()">,
AssemblerPredicate<(all_of FeatureStdExtZhinx),
"'Zhinx' (Half Float in Integer)">;
def NoStdExtZhinx : Predicate<"!Subtarget->hasStdExtZhinx()">;
// Compressed Extensions
def FeatureStdExtC
: RISCVExtension<"c", 2, 0,
"'C' (Compressed Instructions)">,
RISCVExtensionBitmask<0, 2>;
def HasStdExtC : Predicate<"Subtarget->hasStdExtC()">,
AssemblerPredicate<(all_of FeatureStdExtC),
"'C' (Compressed Instructions)">;
def FeatureNoRVCHints
: SubtargetFeature<"no-rvc-hints", "EnableRVCHintInstrs", "false",
"Disable RVC Hint Instructions.">;
def HasRVCHints : Predicate<"Subtarget->enableRVCHintInstrs()">,
AssemblerPredicate<(all_of(not FeatureNoRVCHints)),
"RVC Hint Instructions">;
def FeatureStdExtZca
: RISCVExtension<"zca", 1, 0,
"'Zca' (part of the C extension, excluding compressed "
"floating point loads/stores)">;
def HasStdExtCOrZca
: Predicate<"Subtarget->hasStdExtCOrZca()">,
AssemblerPredicate<(any_of FeatureStdExtC, FeatureStdExtZca),
"'C' (Compressed Instructions) or "
"'Zca' (part of the C extension, excluding "
"compressed floating point loads/stores)">;
def FeatureStdExtZcb
: RISCVExtension<"zcb", 1, 0,
"'Zcb' (Compressed basic bit manipulation instructions)",
[FeatureStdExtZca]>;
def HasStdExtZcb : Predicate<"Subtarget->hasStdExtZcb()">,
AssemblerPredicate<(all_of FeatureStdExtZcb),
"'Zcb' (Compressed basic bit manipulation instructions)">;
def FeatureStdExtZcd
: RISCVExtension<"zcd", 1, 0,
"'Zcd' (Compressed Double-Precision Floating-Point Instructions)",
[FeatureStdExtD, FeatureStdExtZca]>;
def HasStdExtCOrZcd
: Predicate<"Subtarget->hasStdExtCOrZcd()">,
AssemblerPredicate<(any_of FeatureStdExtC, FeatureStdExtZcd),
"'C' (Compressed Instructions) or "
"'Zcd' (Compressed Double-Precision Floating-Point Instructions)">;
def FeatureStdExtZcf
: RISCVExtension<"zcf", 1, 0,
"'Zcf' (Compressed Single-Precision Floating-Point Instructions)",
[FeatureStdExtF, FeatureStdExtZca]>;
def FeatureStdExtZcmp
: RISCVExtension<"zcmp", 1, 0,
"'Zcmp' (sequenced instructions for code-size reduction)",
[FeatureStdExtZca]>;
def HasStdExtZcmp : Predicate<"Subtarget->hasStdExtZcmp() && !Subtarget->hasStdExtC()">,
AssemblerPredicate<(all_of FeatureStdExtZcmp),
"'Zcmp' (sequenced instructions for code-size reduction)">;
def FeatureStdExtZcmt
: RISCVExtension<"zcmt", 1, 0,
"'Zcmt' (table jump instructions for code-size reduction)",
[FeatureStdExtZca, FeatureStdExtZicsr]>;
def HasStdExtZcmt : Predicate<"Subtarget->hasStdExtZcmt()">,
AssemblerPredicate<(all_of FeatureStdExtZcmt),
"'Zcmt' (table jump instructions for code-size reduction)">;
def FeatureStdExtZce
: RISCVExtension<"zce", 1, 0,
"'Zce' (Compressed extensions for microcontrollers)",
[FeatureStdExtZcb, FeatureStdExtZcmp, FeatureStdExtZcmt]>;
def HasStdExtCOrZcfOrZce
: Predicate<"Subtarget->hasStdExtC() || Subtarget->hasStdExtZcf() "
"Subtarget->hasStdExtZce()">,
AssemblerPredicate<(any_of FeatureStdExtC, FeatureStdExtZcf,
FeatureStdExtZce),
"'C' (Compressed Instructions) or "
"'Zcf' (Compressed Single-Precision Floating-Point Instructions)">;
def FeatureStdExtZcmop
: RISCVExtension<"zcmop", 1, 0,
"'Zcmop' (Compressed May-Be-Operations)",
[FeatureStdExtZca]>;
def HasStdExtZcmop : Predicate<"Subtarget->hasStdExtZcmop()">,
AssemblerPredicate<(all_of FeatureStdExtZcmop),
"'Zcmop' (Compressed May-Be-Operations)">;
// Bitmanip Extensions
def FeatureStdExtZba
: RISCVExtension<"zba", 1, 0,
"'Zba' (Address Generation Instructions)">,
RISCVExtensionBitmask<0, 27>;
def HasStdExtZba : Predicate<"Subtarget->hasStdExtZba()">,
AssemblerPredicate<(all_of FeatureStdExtZba),
"'Zba' (Address Generation Instructions)">;
def NotHasStdExtZba : Predicate<"!Subtarget->hasStdExtZba()">;
def FeatureStdExtZbb
: RISCVExtension<"zbb", 1, 0,
"'Zbb' (Basic Bit-Manipulation)">,
RISCVExtensionBitmask<0, 28>;
def HasStdExtZbb : Predicate<"Subtarget->hasStdExtZbb()">,
AssemblerPredicate<(all_of FeatureStdExtZbb),
"'Zbb' (Basic Bit-Manipulation)">;
def NoStdExtZbb : Predicate<"!Subtarget->hasStdExtZbb()">,
AssemblerPredicate<(all_of (not FeatureStdExtZbb))>;
def FeatureStdExtZbc
: RISCVExtension<"zbc", 1, 0,
"'Zbc' (Carry-Less Multiplication)">,
RISCVExtensionBitmask<0, 29>;
def HasStdExtZbc : Predicate<"Subtarget->hasStdExtZbc()">,
AssemblerPredicate<(all_of FeatureStdExtZbc),
"'Zbc' (Carry-Less Multiplication)">;
def FeatureStdExtZbs
: RISCVExtension<"zbs", 1, 0,
"'Zbs' (Single-Bit Instructions)">,
RISCVExtensionBitmask<0, 33>;
def HasStdExtZbs : Predicate<"Subtarget->hasStdExtZbs()">,
AssemblerPredicate<(all_of FeatureStdExtZbs),
"'Zbs' (Single-Bit Instructions)">;
// Bitmanip Extensions for Cryptography Extensions
def FeatureStdExtB
: RISCVExtension<"b", 1, 0,
"'B' (the collection of the Zba, Zbb, Zbs extensions)",
[FeatureStdExtZba, FeatureStdExtZbb, FeatureStdExtZbs]>;
def FeatureStdExtZbkb
: RISCVExtension<"zbkb", 1, 0,
"'Zbkb' (Bitmanip instructions for Cryptography)">,
RISCVExtensionBitmask<0, 30>;
def HasStdExtZbkb : Predicate<"Subtarget->hasStdExtZbkb()">,
AssemblerPredicate<(all_of FeatureStdExtZbkb),
"'Zbkb' (Bitmanip instructions for Cryptography)">;
def FeatureStdExtZbkx
: RISCVExtension<"zbkx", 1, 0,
"'Zbkx' (Crossbar permutation instructions)">,
RISCVExtensionBitmask<0, 32>;
def HasStdExtZbkx : Predicate<"Subtarget->hasStdExtZbkx()">,
AssemblerPredicate<(all_of FeatureStdExtZbkx),
"'Zbkx' (Crossbar permutation instructions)">;
def HasStdExtZbbOrZbkb
: Predicate<"Subtarget->hasStdExtZbb() || Subtarget->hasStdExtZbkb()">,
AssemblerPredicate<(any_of FeatureStdExtZbb, FeatureStdExtZbkb),
"'Zbb' (Basic Bit-Manipulation) or "
"'Zbkb' (Bitmanip instructions for Cryptography)">;
// The Carry-less multiply subextension for cryptography is a subset of basic
// carry-less multiply subextension. The former should be enabled if the latter
// is enabled.
def FeatureStdExtZbkc
: RISCVExtension<"zbkc", 1, 0,
"'Zbkc' (Carry-less multiply instructions for "
"Cryptography)">,
RISCVExtensionBitmask<0, 31>;
def HasStdExtZbkc
: Predicate<"Subtarget->hasStdExtZbkc()">,
AssemblerPredicate<(all_of FeatureStdExtZbkc),
"'Zbkc' (Carry-less multiply instructions for Cryptography)">;
def HasStdExtZbcOrZbkc
: Predicate<"Subtarget->hasStdExtZbc() || Subtarget->hasStdExtZbkc()">,
AssemblerPredicate<(any_of FeatureStdExtZbc, FeatureStdExtZbkc),
"'Zbc' (Carry-Less Multiplication) or "
"'Zbkc' (Carry-less multiply instructions "
"for Cryptography)">;
// Cryptography Extensions
def FeatureStdExtZknd
: RISCVExtension<"zknd", 1, 0,
"'Zknd' (NIST Suite: AES Decryption)">,
RISCVExtensionBitmask<0, 41>;
def HasStdExtZknd : Predicate<"Subtarget->hasStdExtZknd()">,
AssemblerPredicate<(all_of FeatureStdExtZknd),
"'Zknd' (NIST Suite: AES Decryption)">;
def FeatureStdExtZkne
: RISCVExtension<"zkne", 1, 0,
"'Zkne' (NIST Suite: AES Encryption)">,
RISCVExtensionBitmask<0, 42>;
def HasStdExtZkne : Predicate<"Subtarget->hasStdExtZkne()">,
AssemblerPredicate<(all_of FeatureStdExtZkne),
"'Zkne' (NIST Suite: AES Encryption)">;
// Some instructions belong to both Zknd and Zkne subextensions.
// They should be enabled if either has been specified.
def HasStdExtZkndOrZkne
: Predicate<"Subtarget->hasStdExtZknd() || Subtarget->hasStdExtZkne()">,
AssemblerPredicate<(any_of FeatureStdExtZknd, FeatureStdExtZkne),
"'Zknd' (NIST Suite: AES Decryption) or "
"'Zkne' (NIST Suite: AES Encryption)">;
def FeatureStdExtZknh
: RISCVExtension<"zknh", 1, 0,
"'Zknh' (NIST Suite: Hash Function Instructions)">,
RISCVExtensionBitmask<0, 43>;
def HasStdExtZknh : Predicate<"Subtarget->hasStdExtZknh()">,
AssemblerPredicate<(all_of FeatureStdExtZknh),
"'Zknh' (NIST Suite: Hash Function Instructions)">;
def FeatureStdExtZksed
: RISCVExtension<"zksed", 1, 0,
"'Zksed' (ShangMi Suite: SM4 Block Cipher Instructions)">,
RISCVExtensionBitmask<0, 44>;
def HasStdExtZksed : Predicate<"Subtarget->hasStdExtZksed()">,
AssemblerPredicate<(all_of FeatureStdExtZksed),
"'Zksed' (ShangMi Suite: SM4 Block Cipher Instructions)">;
def FeatureStdExtZksh
: RISCVExtension<"zksh", 1, 0,
"'Zksh' (ShangMi Suite: SM3 Hash Function Instructions)">,
RISCVExtensionBitmask<0, 45>;
def HasStdExtZksh : Predicate<"Subtarget->hasStdExtZksh()">,
AssemblerPredicate<(all_of FeatureStdExtZksh),
"'Zksh' (ShangMi Suite: SM3 Hash Function Instructions)">;
def FeatureStdExtZkr
: RISCVExtension<"zkr", 1, 0,
"'Zkr' (Entropy Source Extension)">;
def HasStdExtZkr : Predicate<"Subtarget->hasStdExtZkr()">,
AssemblerPredicate<(all_of FeatureStdExtZkr),
"'Zkr' (Entropy Source Extension)">;
def FeatureStdExtZkn
: RISCVExtension<"zkn", 1, 0,
"'Zkn' (NIST Algorithm Suite)",
[FeatureStdExtZbkb,
FeatureStdExtZbkc,
FeatureStdExtZbkx,
FeatureStdExtZkne,
FeatureStdExtZknd,
FeatureStdExtZknh]>;
def FeatureStdExtZks
: RISCVExtension<"zks", 1, 0,
"'Zks' (ShangMi Algorithm Suite)",
[FeatureStdExtZbkb,
FeatureStdExtZbkc,
FeatureStdExtZbkx,
FeatureStdExtZksed,
FeatureStdExtZksh]>;
def FeatureStdExtZkt
: RISCVExtension<"zkt", 1, 0,
"'Zkt' (Data Independent Execution Latency)">,
RISCVExtensionBitmask<0, 46>;
def FeatureStdExtZk
: RISCVExtension<"zk", 1, 0,
"'Zk' (Standard scalar cryptography extension)",
[FeatureStdExtZkn,
FeatureStdExtZkr,
FeatureStdExtZkt]>;
// Vector Extensions
def FeatureStdExtZvl32b : RISCVExtension<"zvl32b", 1, 0,
"'Zvl' (Minimum Vector Length) 32", [],
"ZvlLen", "32">;
foreach i = { 6-16 } in {
defvar I = !shl(1, i);
def FeatureStdExtZvl#I#b :
RISCVExtension<"zvl"#I#"b", 1, 0,
"'Zvl' (Minimum Vector Length) "#I,
[!cast<RISCVExtension>("FeatureStdExtZvl"#!srl(I, 1)#"b")],
"ZvlLen", !cast<string>(I)>;
}
def FeatureStdExtZve32x
: RISCVExtension<"zve32x", 1, 0,
"'Zve32x' (Vector Extensions for Embedded Processors "
"with maximal 32 EEW)",
[FeatureStdExtZicsr, FeatureStdExtZvl32b]>;
def FeatureStdExtZve32f
: RISCVExtension<"zve32f", 1, 0,
"'Zve32f' (Vector Extensions for Embedded Processors "
"with maximal 32 EEW and F extension)",
[FeatureStdExtZve32x, FeatureStdExtF]>;
def FeatureStdExtZve64x
: RISCVExtension<"zve64x", 1, 0,
"'Zve64x' (Vector Extensions for Embedded Processors "
"with maximal 64 EEW)",
[FeatureStdExtZve32x, FeatureStdExtZvl64b]>;
def FeatureStdExtZve64f
: RISCVExtension<"zve64f", 1, 0,
"'Zve64f' (Vector Extensions for Embedded Processors "
"with maximal 64 EEW and F extension)",
[FeatureStdExtZve32f, FeatureStdExtZve64x]>;
def FeatureStdExtZve64d
: RISCVExtension<"zve64d", 1, 0,
"'Zve64d' (Vector Extensions for Embedded Processors "
"with maximal 64 EEW, F and D extension)",
[FeatureStdExtZve64f, FeatureStdExtD]>;
def FeatureStdExtV
: RISCVExtension<"v", 1, 0,
"'V' (Vector Extension for Application Processors)",
[FeatureStdExtZvl128b, FeatureStdExtZve64d]>,
RISCVExtensionBitmask<0, 21>;
def FeatureStdExtZvfbfmin
: RISCVExtension<"zvfbfmin", 1, 0, "'Zvbfmin' (Vector BF16 Converts)",
[FeatureStdExtZve32f]>;
def HasStdExtZvfbfmin : Predicate<"Subtarget->hasStdExtZvfbfmin()">,
AssemblerPredicate<(all_of FeatureStdExtZvfbfmin),
"'Zvfbfmin' (Vector BF16 Converts)">;
def FeatureStdExtZvfbfwma
: RISCVExtension<"zvfbfwma", 1, 0,
"'Zvfbfwma' (Vector BF16 widening mul-add)",
[FeatureStdExtZvfbfmin, FeatureStdExtZfbfmin]>;
def HasStdExtZvfbfwma : Predicate<"Subtarget->hasStdExtZvfbfwma()">,
AssemblerPredicate<(all_of FeatureStdExtZvfbfwma),
"'Zvfbfwma' (Vector BF16 widening mul-add)">;
def FeatureStdExtZvfhmin
: RISCVExtension<"zvfhmin", 1, 0,
"'Zvfhmin' (Vector Half-Precision Floating-Point Minimal)",
[FeatureStdExtZve32f]>,
RISCVExtensionBitmask<0, 51>;
def FeatureStdExtZvfh
: RISCVExtension<"zvfh", 1, 0,
"'Zvfh' (Vector Half-Precision Floating-Point)",
[FeatureStdExtZvfhmin, FeatureStdExtZfhmin]>,
RISCVExtensionBitmask<0, 50>;
def HasStdExtZfhOrZvfh
: Predicate<"Subtarget->hasStdExtZfh() || Subtarget->hasStdExtZvfh()">,
AssemblerPredicate<(any_of FeatureStdExtZfh, FeatureStdExtZvfh),
"'Zfh' (Half-Precision Floating-Point) or "
"'Zvfh' (Vector Half-Precision Floating-Point)">;
// Vector Cryptography and Bitmanip Extensions
def FeatureStdExtZvkb
: RISCVExtension<"zvkb", 1, 0,
"'Zvkb' (Vector Bit-manipulation used in Cryptography)">,
RISCVExtensionBitmask<0, 52>;
def HasStdExtZvkb : Predicate<"Subtarget->hasStdExtZvkb()">,
AssemblerPredicate<(all_of FeatureStdExtZvkb),
"'Zvkb' (Vector Bit-manipulation used in Cryptography)">;
def FeatureStdExtZvbb
: RISCVExtension<"zvbb", 1, 0,
"'Zvbb' (Vector basic bit-manipulation instructions)",
[FeatureStdExtZvkb]>,
RISCVExtensionBitmask<0, 48>;
def HasStdExtZvbb : Predicate<"Subtarget->hasStdExtZvbb()">,
AssemblerPredicate<(all_of FeatureStdExtZvbb),
"'Zvbb' (Vector basic bit-manipulation instructions)">;
def FeatureStdExtZvbc
: RISCVExtension<"zvbc", 1, 0,
"'Zvbc' (Vector Carryless Multiplication)">,
RISCVExtensionBitmask<0, 49>;
def HasStdExtZvbc : Predicate<"Subtarget->hasStdExtZvbc()">,
AssemblerPredicate<(all_of FeatureStdExtZvbc),
"'Zvbc' (Vector Carryless Multiplication)">;
def FeatureStdExtZvbc32e
: RISCVExperimentalExtension<"zvbc32e", 0, 7,
"'Zvbc32e' (Vector Carryless Multiplication with 32-bits elements)">;
def HasStdExtZvbcOrZvbc32e : Predicate<"Subtarget->hasStdExtZvbc() || Subtarget->hasStdExtZvbc32e()">,
AssemblerPredicate<(any_of FeatureStdExtZvbc, FeatureStdExtZvbc32e),
"'Zvbc' or 'Zvbc32e' (Vector Carryless Multiplication)">;
def FeatureStdExtZvkg
: RISCVExtension<"zvkg", 1, 0,
"'Zvkg' (Vector GCM instructions for Cryptography)">,
RISCVExtensionBitmask<0, 53>;
def HasStdExtZvkg : Predicate<"Subtarget->hasStdExtZvkg()">,
AssemblerPredicate<(all_of FeatureStdExtZvkg),
"'Zvkg' (Vector GCM instructions for Cryptography)">;
def FeatureStdExtZvkgs
: RISCVExperimentalExtension<"zvkgs", 0, 7,
"'Zvkgs' (Vector-Scalar GCM instructions for Cryptography)",
[FeatureStdExtZvkg]>;
def HasStdExtZvkgs : Predicate<"Subtarget->hasStdExtZvkgs()">,
AssemblerPredicate<(all_of FeatureStdExtZvkgs),
"'Zvkgs' (Vector-Scalar GCM instructions for Cryptography)">;
def FeatureStdExtZvkned
: RISCVExtension<"zvkned", 1, 0,
"'Zvkned' (Vector AES Encryption & Decryption (Single Round))">,
RISCVExtensionBitmask<0, 54>;
def HasStdExtZvkned : Predicate<"Subtarget->hasStdExtZvkned()">,
AssemblerPredicate<(all_of FeatureStdExtZvkned),
"'Zvkned' (Vector AES Encryption & Decryption (Single Round))">;
def FeatureStdExtZvknha
: RISCVExtension<"zvknha", 1, 0,
"'Zvknha' (Vector SHA-2 (SHA-256 only))">,
RISCVExtensionBitmask<0, 55>;
def HasStdExtZvknha : Predicate<"Subtarget->hasStdExtZvknha()">,
AssemblerPredicate<(all_of FeatureStdExtZvknha),
"'Zvknha' (Vector SHA-2 (SHA-256 only))">;
def FeatureStdExtZvknhb
: RISCVExtension<"zvknhb", 1, 0,
"'Zvknhb' (Vector SHA-2 (SHA-256 and SHA-512))">,
RISCVExtensionBitmask<0, 56>;
def HasStdExtZvknhb : Predicate<"Subtarget->hasStdExtZvknhb()">,
AssemblerPredicate<(all_of FeatureStdExtZvknhb),
"'Zvknhb' (Vector SHA-2 (SHA-256 and SHA-512))">;
def HasStdExtZvknhaOrZvknhb : Predicate<"Subtarget->hasStdExtZvknha() || Subtarget->hasStdExtZvknhb()">,
AssemblerPredicate<(any_of FeatureStdExtZvknha, FeatureStdExtZvknhb),
"'Zvknha' or 'Zvknhb' (Vector SHA-2)">;
def FeatureStdExtZvksed
: RISCVExtension<"zvksed", 1, 0,
"'Zvksed' (SM4 Block Cipher Instructions)">,
RISCVExtensionBitmask<0, 57>;
def HasStdExtZvksed : Predicate<"Subtarget->hasStdExtZvksed()">,
AssemblerPredicate<(all_of FeatureStdExtZvksed),
"'Zvksed' (SM4 Block Cipher Instructions)">;
def FeatureStdExtZvksh
: RISCVExtension<"zvksh", 1, 0,
"'Zvksh' (SM3 Hash Function Instructions)">,
RISCVExtensionBitmask<0, 58>;
def HasStdExtZvksh : Predicate<"Subtarget->hasStdExtZvksh()">,
AssemblerPredicate<(all_of FeatureStdExtZvksh),
"'Zvksh' (SM3 Hash Function Instructions)">;
def FeatureStdExtZvkt
: RISCVExtension<"zvkt", 1, 0,
"'Zvkt' (Vector Data-Independent Execution Latency)">,
RISCVExtensionBitmask<0, 59>;
// Zvk short-hand extensions
def FeatureStdExtZvkn
: RISCVExtension<"zvkn", 1, 0,
"'Zvkn' (shorthand for 'Zvkned', 'Zvknhb', 'Zvkb', and "
"'Zvkt')",
[FeatureStdExtZvkned, FeatureStdExtZvknhb,
FeatureStdExtZvkb, FeatureStdExtZvkt]>;
def FeatureStdExtZvknc
: RISCVExtension<"zvknc", 1, 0,
"'Zvknc' (shorthand for 'Zvknc' and 'Zvbc')",
[FeatureStdExtZvkn, FeatureStdExtZvbc]>;
def FeatureStdExtZvkng
: RISCVExtension<"zvkng", 1, 0,
"'zvkng' (shorthand for 'Zvkn' and 'Zvkg')",
[FeatureStdExtZvkn, FeatureStdExtZvkg]>;
def FeatureStdExtZvks
: RISCVExtension<"zvks", 1, 0,
"'Zvks' (shorthand for 'Zvksed', 'Zvksh', 'Zvkb', and "
"'Zvkt')",
[FeatureStdExtZvksed, FeatureStdExtZvksh,
FeatureStdExtZvkb, FeatureStdExtZvkt]>;
def FeatureStdExtZvksc
: RISCVExtension<"zvksc", 1, 0,
"'Zvksc' (shorthand for 'Zvks' and 'Zvbc')",
[FeatureStdExtZvks, FeatureStdExtZvbc]>;
def FeatureStdExtZvksg
: RISCVExtension<"zvksg", 1, 0,
"'Zvksg' (shorthand for 'Zvks' and 'Zvkg')",
[FeatureStdExtZvks, FeatureStdExtZvkg]>;
// Vector instruction predicates
def HasVInstructions : Predicate<"Subtarget->hasVInstructions()">,
AssemblerPredicate<
(any_of FeatureStdExtZve32x),
"'V' (Vector Extension for Application Processors), 'Zve32x' "
"(Vector Extensions for Embedded Processors)">;
def HasVInstructionsI64 : Predicate<"Subtarget->hasVInstructionsI64()">,
AssemblerPredicate<
(any_of FeatureStdExtZve64x),
"'V' (Vector Extension for Application Processors) or 'Zve64x' "
"(Vector Extensions for Embedded Processors)">;
def HasVInstructionsAnyF : Predicate<"Subtarget->hasVInstructionsAnyF()">,
AssemblerPredicate<
(any_of FeatureStdExtZve32f),
"'V' (Vector Extension for Application Processors), 'Zve32f' "
"(Vector Extensions for Embedded Processors)">;
def HasVInstructionsF16Minimal : Predicate<"Subtarget->hasVInstructionsF16Minimal()">,
AssemblerPredicate<(any_of FeatureStdExtZvfhmin, FeatureStdExtZvfh),
"'Zvfhmin' (Vector Half-Precision Floating-Point Minimal) or "
"'Zvfh' (Vector Half-Precision Floating-Point)">;
def HasVInstructionsBF16Minimal : Predicate<"Subtarget->hasVInstructionsBF16Minimal()">;
def HasVInstructionsF16 : Predicate<"Subtarget->hasVInstructionsF16()">;
def HasVInstructionsF64 : Predicate<"Subtarget->hasVInstructionsF64()">;
def HasVInstructionsFullMultiply : Predicate<"Subtarget->hasVInstructionsFullMultiply()">;
// Hypervisor Extensions
def FeatureStdExtH
: RISCVExtension<"h", 1, 0,
"'H' (Hypervisor)">;
def HasStdExtH : Predicate<"Subtarget->hasStdExtH()">,
AssemblerPredicate<(all_of FeatureStdExtH),
"'H' (Hypervisor)">;
// Supervisor extensions
def FeatureStdExtShgatpa
: RISCVExtension<"shgatpa", 1, 0,
"'Sgatpa' (SvNNx4 mode supported for all modes supported by satp, as well as Bare)">;
def FeatureStdExtShvsatpa
: RISCVExtension<"shvsatpa", 1, 0,
"'Svsatpa' (vsatp supports all modes supported by satp)">;
def FeatureStdExtSmaia
: RISCVExtension<"smaia", 1, 0,
"'Smaia' (Advanced Interrupt Architecture Machine Level)">;
def FeatureStdExtSsaia
: RISCVExtension<"ssaia", 1, 0,
"'Ssaia' (Advanced Interrupt Architecture Supervisor "
"Level)">;
def FeatureStdExtSmcsrind
: RISCVExtension<"smcsrind", 1, 0,
"'Smcsrind' (Indirect CSR Access Machine Level)">;
def FeatureStdExtSscsrind
: RISCVExtension<"sscsrind", 1, 0,
"'Sscsrind' (Indirect CSR Access Supervisor Level)">;
def FeatureStdExtSmepmp
: RISCVExtension<"smepmp", 1, 0,
"'Smepmp' (Enhanced Physical Memory Protection)">;
def FeatureStdExtSmcdeleg
: RISCVExtension<"smcdeleg", 1, 0,
"'Smcdeleg' (Counter Delegation Machine Level)">;
def FeatureStdExtSsccfg
: RISCVExtension<"ssccfg", 1, 0,
"'Ssccfg' (Counter Configuration Supervisor Level)">;
def FeatureStdExtSsccptr
: RISCVExtension<"ssccptr", 1, 0,
"'Ssccptr' (Main memory supports page table reads)">;
def FeatureStdExtSscofpmf
: RISCVExtension<"sscofpmf", 1, 0,
"'Sscofpmf' (Count Overflow and Mode-Based Filtering)">;
def FeatureStdExtShcounterenw
: RISCVExtension<"shcounterenw", 1, 0,
"'Shcounterenw' (Support writeable hcounteren enable "
"bit for any hpmcounter that is not read-only zero)">;
def FeatureStdExtSscounterenw
: RISCVExtension<"sscounterenw", 1, 0,
"'Sscounterenw' (Support writeable scounteren enable "
"bit for any hpmcounter that is not read-only zero)">;
def FeatureStdExtSmstateen
: RISCVExtension<"smstateen", 1, 0,
"'Smstateen' (Machine-mode view of the state-enable extension)">;
def FeatureStdExtSsstateen
: RISCVExtension<"ssstateen", 1, 0,
"'Ssstateen' (Supervisor-mode view of the state-enable extension)">;
def FeatureStdExtSsstrict
: RISCVExtension<"ssstrict", 1, 0,
"'Ssstrict' (No non-conforming extensions are present)">;
def FeatureStdExtSstc
: RISCVExtension<"sstc", 1, 0,
"'Sstc' (Supervisor-mode timer interrupts)">;
def FeatureStdExtSsqosid
: RISCVExtension<"ssqosid", 1, 0,
"'Ssqosid' (Quality-of-Service (QoS) Identifiers)">;
def FeatureStdExtShtvala
: RISCVExtension<"shtvala", 1, 0,
"'Shtvala' (htval provides all needed values)">;
def FeatureStdExtShvstvala
: RISCVExtension<"shvstvala", 1, 0,
"'Shvstvala' (vstval provides all needed values)">;
def FeatureStdExtSstvala
: RISCVExtension<"sstvala", 1, 0,
"'Sstvala' (stval provides all needed values)">;
def FeatureStdExtShvstvecd
: RISCVExtension<"shvstvecd", 1, 0,
"'Shvstvecd' (vstvec supports Direct mode)">;
def FeatureStdExtSstvecd
: RISCVExtension<"sstvecd", 1, 0,
"'Sstvecd' (stvec supports Direct mode)">;
def FeatureStdExtSsu64xl
: RISCVExtension<"ssu64xl", 1, 0,
"'Ssu64xl' (UXLEN=64 supported)">;
def FeatureStdExtSvade
: RISCVExtension<"svade", 1, 0,
"'Svade' (Raise exceptions on improper A/D bits)">;
def FeatureStdExtSvadu
: RISCVExtension<"svadu", 1, 0,
"'Svadu' (Hardware A/D updates)">;
def FeatureStdExtSvbare
: RISCVExtension<"svbare", 1, 0,
"'Svbare' $(satp mode Bare supported)">;
def FeatureStdExtSvinval
: RISCVExtension<"svinval", 1, 0,
"'Svinval' (Fine-Grained Address-Translation Cache Invalidation)">;
def HasStdExtSvinval : Predicate<"Subtarget->hasStdExtSvinval()">,
AssemblerPredicate<(all_of FeatureStdExtSvinval),
"'Svinval' (Fine-Grained Address-Translation Cache Invalidation)">;
def FeatureStdExtSvnapot
: RISCVExtension<"svnapot", 1, 0,
"'Svnapot' (NAPOT Translation Contiguity)">;
def FeatureStdExtSvpbmt
: RISCVExtension<"svpbmt", 1, 0,
"'Svpbmt' (Page-Based Memory Types)">;
// Pointer Masking extensions
// A supervisor-level extension that provides pointer masking for the next lower
// privilege mode (U-mode), and for VS- and VU-modes if the H extension is
// present.
def FeatureStdExtSsnpm
: RISCVExperimentalExtension<"ssnpm", 1, 0,
"'Ssnpm' (Supervisor-level Pointer Masking for next lower privilege mode)">;
// A machine-level extension that provides pointer masking for the next lower
// privilege mode (S/HS if S-mode is implemented, or U-mode otherwise).
def FeatureStdExtSmnpm
: RISCVExperimentalExtension<"smnpm", 1, 0,
"'Smnpm' (Machine-level Pointer Masking for next lower privilege mode)">;
// A machine-level extension that provides pointer masking for M-mode.
def FeatureStdExtSmmpm
: RISCVExperimentalExtension<"smmpm", 1, 0,
"'Smmpm' (Machine-level Pointer Masking for M-mode)">;
// An extension that indicates that there is pointer-masking support available
// in supervisor mode, with some facility provided in the supervisor execution
// environment to control pointer masking.
def FeatureStdExtSspm
: RISCVExperimentalExtension<"sspm", 1, 0,
"'Sspm' (Indicates Supervisor-mode Pointer Masking)">;
// An extension that indicates that there is pointer-masking support available
// in user mode, with some facility provided in the application execution
// environment to control pointer masking.
def FeatureStdExtSupm
: RISCVExperimentalExtension<"supm", 1, 0,
"'Supm' (Indicates User-mode Pointer Masking)">;
def FeatureStdExtSmctr
: RISCVExperimentalExtension<"smctr", 1, 0,
"'Smctr' (Control Transfer Records Machine Level)",
[FeatureStdExtSscsrind]>;
def FeatureStdExtSsctr
: RISCVExperimentalExtension<"ssctr" ,1, 0,
"'Ssctr' (Control Transfer Records Supervisor Level)",
[FeatureStdExtSscsrind]>;
def HasStdExtSmctrOrSsctr : Predicate<"Subtarget->hasStdExtSmctrOrSsctr()">,
AssemblerPredicate<(any_of FeatureStdExtSmctr, FeatureStdExtSsctr),
"'Smctr' (Control Transfer Records Machine Level) or "
"'Ssctr' (Control Transfer Records Supervisor Level)">;
//===----------------------------------------------------------------------===//
// Vendor extensions
//===----------------------------------------------------------------------===//
// Ventana Extenions
def FeatureVendorXVentanaCondOps
: RISCVExtension<"xventanacondops", 1, 0,
"'XVentanaCondOps' (Ventana Conditional Ops)">;
def HasVendorXVentanaCondOps : Predicate<"Subtarget->hasVendorXVentanaCondOps()">,
AssemblerPredicate<(all_of FeatureVendorXVentanaCondOps),
"'XVentanaCondOps' (Ventana Conditional Ops)">;
// T-Head Extensions
def FeatureVendorXTHeadBa
: RISCVExtension<"xtheadba", 1, 0,
"'XTHeadBa' (T-Head address calculation instructions)">;
def HasVendorXTHeadBa : Predicate<"Subtarget->hasVendorXTHeadBa()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadBa),
"'XTHeadBa' (T-Head address calculation instructions)">;
def FeatureVendorXTHeadBb
: RISCVExtension<"xtheadbb", 1, 0,
"'XTHeadBb' (T-Head basic bit-manipulation instructions)">;
def HasVendorXTHeadBb : Predicate<"Subtarget->hasVendorXTHeadBb()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadBb),
"'XTHeadBb' (T-Head basic bit-manipulation instructions)">;
def FeatureVendorXTHeadBs
: RISCVExtension<"xtheadbs", 1, 0,
"'XTHeadBs' (T-Head single-bit instructions)">;
def HasVendorXTHeadBs : Predicate<"Subtarget->hasVendorXTHeadBs()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadBs),
"'XTHeadBs' (T-Head single-bit instructions)">;
def FeatureVendorXTHeadCondMov
: RISCVExtension<"xtheadcondmov", 1, 0,
"'XTHeadCondMov' (T-Head conditional move instructions)">;
def HasVendorXTHeadCondMov : Predicate<"Subtarget->hasVendorXTHeadCondMov()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadCondMov),
"'XTHeadCondMov' (T-Head conditional move instructions)">;
def FeatureVendorXTHeadCmo
: RISCVExtension<"xtheadcmo", 1, 0,
"'XTHeadCmo' (T-Head cache management instructions)">;
def HasVendorXTHeadCmo : Predicate<"Subtarget->hasVendorXTHeadCmo()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadCmo),
"'XTHeadCmo' (T-Head cache management instructions)">;
def FeatureVendorXTHeadFMemIdx
: RISCVExtension<"xtheadfmemidx", 1, 0,
"'XTHeadFMemIdx' (T-Head FP Indexed Memory Operations)">;
def HasVendorXTHeadFMemIdx : Predicate<"Subtarget->hasVendorXTHeadFMemIdx()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadFMemIdx),
"'XTHeadFMemIdx' (T-Head FP Indexed Memory Operations)">;
def FeatureVendorXTHeadMac
: RISCVExtension<"xtheadmac", 1, 0,
"'XTHeadMac' (T-Head Multiply-Accumulate Instructions)">;
def HasVendorXTHeadMac : Predicate<"Subtarget->hasVendorXTHeadMac()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadMac),
"'XTHeadMac' (T-Head Multiply-Accumulate Instructions)">;
def FeatureVendorXTHeadMemIdx
: RISCVExtension<"xtheadmemidx", 1, 0,
"'XTHeadMemIdx' (T-Head Indexed Memory Operations)">;
def HasVendorXTHeadMemIdx : Predicate<"Subtarget->hasVendorXTHeadMemIdx()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadMemIdx),
"'XTHeadMemIdx' (T-Head Indexed Memory Operations)">;
def FeatureVendorXTHeadMemPair
: RISCVExtension<"xtheadmempair", 1, 0,
"'XTHeadMemPair' (T-Head two-GPR Memory Operations)">;
def HasVendorXTHeadMemPair : Predicate<"Subtarget->hasVendorXTHeadMemPair()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadMemPair),
"'XTHeadMemPair' (T-Head two-GPR Memory Operations)">;
def FeatureVendorXTHeadSync
: RISCVExtension<"xtheadsync", 1, 0,
"'XTHeadSync' (T-Head multicore synchronization instructions)">;
def HasVendorXTHeadSync : Predicate<"Subtarget->hasVendorXTHeadSync()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadSync),
"'XTHeadSync' (T-Head multicore synchronization instructions)">;
def FeatureVendorXTHeadVdot
: RISCVExtension<"xtheadvdot", 1, 0,
"'XTHeadVdot' (T-Head Vector Extensions for Dot)",
[FeatureStdExtV]>;
def HasVendorXTHeadVdot : Predicate<"Subtarget->hasVendorXTHeadVdot()">,
AssemblerPredicate<(all_of FeatureVendorXTHeadVdot),
"'XTHeadVdot' (T-Head Vector Extensions for Dot)">;
// SiFive Extensions
def FeatureVendorXSfvcp
: RISCVExtension<"xsfvcp", 1, 0,
"'XSfvcp' (SiFive Custom Vector Coprocessor Interface Instructions)",
[FeatureStdExtZve32x]>;
def HasVendorXSfvcp : Predicate<"Subtarget->hasVendorXSfvcp()">,
AssemblerPredicate<(all_of FeatureVendorXSfvcp),
"'XSfvcp' (SiFive Custom Vector Coprocessor Interface Instructions)">;
def FeatureVendorXSfvqmaccdod
: RISCVExtension<"xsfvqmaccdod", 1, 0,
"'XSfvqmaccdod' (SiFive Int8 Matrix Multiplication Instructions (2-by-8 and 8-by-2))",
[FeatureStdExtZve32x]>;
def HasVendorXSfvqmaccdod
: Predicate<"Subtarget->hasVendorXSfvqmaccdod()">,
AssemblerPredicate<(all_of FeatureVendorXSfvqmaccdod),
"'XSfvqmaccdod' (SiFive Int8 Matrix Multiplication Instructions (2-by-8 and 8-by-2))">;
def FeatureVendorXSfvqmaccqoq
: RISCVExtension<"xsfvqmaccqoq", 1, 0,
"'XSfvqmaccqoq' (SiFive Int8 Matrix Multiplication Instructions (4-by-8 and 8-by-4))",
[FeatureStdExtZve32x]>;
def HasVendorXSfvqmaccqoq
: Predicate<"Subtarget->hasVendorXSfvqmaccqoq()">,
AssemblerPredicate<(all_of FeatureVendorXSfvqmaccqoq),
"'XSfvqmaccqoq' (SiFive Int8 Matrix Multiplication Instructions (4-by-8 and 8-by-4))">;
def FeatureVendorXSfvfwmaccqqq
: RISCVExtension<"xsfvfwmaccqqq", 1, 0,
"'XSfvfwmaccqqq' (SiFive Matrix Multiply Accumulate Instruction and 4-by-4))",
[FeatureStdExtZvfbfmin]>;
def HasVendorXSfvfwmaccqqq
: Predicate<"Subtarget->hasVendorXSfvfwmaccqqq()">,
AssemblerPredicate<(all_of FeatureVendorXSfvfwmaccqqq),
"'XSfvfwmaccqqq' (SiFive Matrix Multiply Accumulate Instruction and 4-by-4))">;
def FeatureVendorXSfvfnrclipxfqf
: RISCVExtension<"xsfvfnrclipxfqf", 1, 0,
"'XSfvfnrclipxfqf' (SiFive FP32-to-int8 Ranged Clip Instructions)",
[FeatureStdExtZve32f]>;
def HasVendorXSfvfnrclipxfqf
: Predicate<"Subtarget->hasVendorXSfvfnrclipxfqf()">,
AssemblerPredicate<(all_of FeatureVendorXSfvfnrclipxfqf),
"'XSfvfnrclipxfqf' (SiFive FP32-to-int8 Ranged Clip Instructions)">;
def FeatureVendorXSiFivecdiscarddlone
: RISCVExtension<"xsifivecdiscarddlone", 1, 0,
"'XSiFivecdiscarddlone' (SiFive sf.cdiscard.d.l1 Instruction)", []>;
def HasVendorXSiFivecdiscarddlone
: Predicate<"Subtarget->hasVendorXSiFivecdiscarddlone()">,
AssemblerPredicate<(all_of FeatureVendorXSiFivecdiscarddlone),
"'XSiFivecdiscarddlone' (SiFive sf.cdiscard.d.l1 Instruction)">;
def FeatureVendorXSiFivecflushdlone
: RISCVExtension<"xsifivecflushdlone", 1, 0,
"'XSiFivecflushdlone' (SiFive sf.cflush.d.l1 Instruction)", []>;
def HasVendorXSiFivecflushdlone
: Predicate<"Subtarget->hasVendorXSiFivecflushdlone()">,
AssemblerPredicate<(all_of FeatureVendorXSiFivecflushdlone),
"'XSiFivecflushdlone' (SiFive sf.cflush.d.l1 Instruction)">;
def FeatureVendorXSfcease
: RISCVExtension<"xsfcease", 1, 0,
"'XSfcease' (SiFive sf.cease Instruction)", []>;
def HasVendorXSfcease
: Predicate<"Subtarget->hasVendorXSfcease()">,
AssemblerPredicate<(all_of FeatureVendorXSfcease),
"'XSfcease' (SiFive sf.cease Instruction)">;
// Core-V Extensions
def FeatureVendorXCVelw
: RISCVExtension<"xcvelw", 1, 0,
"'XCVelw' (CORE-V Event Load Word)">;
def HasVendorXCVelw
: Predicate<"Subtarget->hasVendorXCVelw()">,
AssemblerPredicate<(any_of FeatureVendorXCVelw),
"'XCVelw' (CORE-V Event Load Word)">;
def FeatureVendorXCVbitmanip
: RISCVExtension<"xcvbitmanip", 1, 0,
"'XCVbitmanip' (CORE-V Bit Manipulation)">;
def HasVendorXCVbitmanip
: Predicate<"Subtarget->hasVendorXCVbitmanip()">,
AssemblerPredicate<(all_of FeatureVendorXCVbitmanip),
"'XCVbitmanip' (CORE-V Bit Manipulation)">;
def FeatureVendorXCVmac
: RISCVExtension<"xcvmac", 1, 0,
"'XCVmac' (CORE-V Multiply-Accumulate)">;
def HasVendorXCVmac
: Predicate<"Subtarget->hasVendorXCVmac()">,
AssemblerPredicate<(all_of FeatureVendorXCVmac),
"'XCVmac' (CORE-V Multiply-Accumulate)">;
def FeatureVendorXCVmem
: RISCVExtension<"xcvmem", 1, 0,
"'XCVmem' (CORE-V Post-incrementing Load & Store)">;
def HasVendorXCVmem
: Predicate<"Subtarget->hasVendorXCVmem()">,
AssemblerPredicate<(any_of FeatureVendorXCVmem),
"'XCVmem' (CORE-V Post-incrementing Load & Store)">;
def FeatureVendorXCValu
: RISCVExtension<"xcvalu", 1, 0,
"'XCValu' (CORE-V ALU Operations)">;
def HasVendorXCValu
: Predicate<"Subtarget->hasVendorXCValu()">,
AssemblerPredicate<(all_of FeatureVendorXCValu),
"'XCValu' (CORE-V ALU Operations)">;
def FeatureVendorXCVsimd
: RISCVExtension<"xcvsimd", 1, 0,
"'XCVsimd' (CORE-V SIMD ALU)">;
def HasVendorXCVsimd
: Predicate<"Subtarget->hasVendorXCVsimd()">,
AssemblerPredicate<(any_of FeatureVendorXCVsimd),
"'XCVsimd' (CORE-V SIMD ALU)">;
def FeatureVendorXCVbi
: RISCVExtension<"xcvbi", 1, 0,
"'XCVbi' (CORE-V Immediate Branching)">;
def HasVendorXCVbi
: Predicate<"Subtarget->hasVendorXCVbi()">,
AssemblerPredicate<(all_of FeatureVendorXCVbi),
"'XCVbi' (CORE-V Immediate Branching)">;
// WCH / Nanjing Qinheng Microelectronics Extension(s)
def FeatureVendorXwchc
: RISCVExtension<"xwchc", 2, 2,
"'Xwchc' (WCH/QingKe additional compressed opcodes)">;
def HasVendorXwchc
: Predicate<"Subtarget->hasVendorXwchc()">,
AssemblerPredicate<(all_of FeatureVendorXwchc),
"'Xwchc' (WCH/QingKe additional compressed opcodes)">;
//===----------------------------------------------------------------------===//
// LLVM specific features and extensions
//===----------------------------------------------------------------------===//
// Feature32Bit exists to mark CPUs that support RV32 to distinquish them from
// tuning CPU names.
def Feature32Bit
: SubtargetFeature<"32bit", "IsRV32", "true", "Implements RV32">;
def Feature64Bit
: SubtargetFeature<"64bit", "IsRV64", "true", "Implements RV64">;
def IsRV64 : Predicate<"Subtarget->is64Bit()">,
AssemblerPredicate<(all_of Feature64Bit),
"RV64I Base Instruction Set">;
def IsRV32 : Predicate<"!Subtarget->is64Bit()">,
AssemblerPredicate<(all_of (not Feature64Bit)),
"RV32I Base Instruction Set">;
defvar RV32 = DefaultMode;
def RV64 : HwMode<"+64bit", [IsRV64]>;
def FeatureRelax
: SubtargetFeature<"relax", "EnableLinkerRelax", "true",
"Enable Linker relaxation.">;
foreach i = {1-31} in
def FeatureReserveX#i :
SubtargetFeature<"reserve-x"#i, "UserReservedRegister[RISCV::X"#i#"]",
"true", "Reserve X"#i>;
def FeatureSaveRestore : SubtargetFeature<"save-restore", "EnableSaveRestore",
"true", "Enable save/restore.">;
def FeatureNoTrailingSeqCstFence : SubtargetFeature<"no-trailing-seq-cst-fence",
"EnableTrailingSeqCstFence",
"false",
"Disable trailing fence for seq-cst store.">;
def FeatureUnalignedScalarMem
: SubtargetFeature<"unaligned-scalar-mem", "EnableUnalignedScalarMem",
"true", "Has reasonably performant unaligned scalar "
"loads and stores">;
def FeatureUnalignedVectorMem
: SubtargetFeature<"unaligned-vector-mem", "EnableUnalignedVectorMem",
"true", "Has reasonably performant unaligned vector "
"loads and stores">;
def FeaturePostRAScheduler : SubtargetFeature<"use-postra-scheduler",
"UsePostRAScheduler", "true", "Schedule again after register allocation">;
def FeaturePredictableSelectIsExpensive
: SubtargetFeature<"predictable-select-expensive", "PredictableSelectIsExpensive", "true",
"Prefer likely predicted branches over selects">;
def TuneOptimizedZeroStrideLoad
: SubtargetFeature<"optimized-zero-stride-load", "HasOptimizedZeroStrideLoad",
"true", "Optimized (perform fewer memory operations)"
"zero-stride vector load">;
def Experimental
: SubtargetFeature<"experimental", "HasExperimental",
"true", "Experimental intrinsics">;
// Some vector hardware implementations do not process all VLEN bits in parallel
// and instead split over multiple cycles. DLEN refers to the datapath width
// that can be done in parallel.
def TuneDLenFactor2
: SubtargetFeature<"dlen-factor-2", "DLenFactor2", "true",
"Vector unit DLEN(data path width) is half of VLEN">;
def TuneNoDefaultUnroll
: SubtargetFeature<"no-default-unroll", "EnableDefaultUnroll", "false",
"Disable default unroll preference.">;
// SiFive 7 is able to fuse integer ALU operations with a preceding branch
// instruction.
def TuneShortForwardBranchOpt
: SubtargetFeature<"short-forward-branch-opt", "HasShortForwardBranchOpt",
"true", "Enable short forward branch optimization">;
def HasShortForwardBranchOpt : Predicate<"Subtarget->hasShortForwardBranchOpt()">;
def NoShortForwardBranchOpt : Predicate<"!Subtarget->hasShortForwardBranchOpt()">;
// Some subtargets require a S2V transfer buffer to move scalars into vectors.
// FIXME: Forming .vx/.vf/.wx/.wf can reduce register pressure.
def TuneNoSinkSplatOperands
: SubtargetFeature<"no-sink-splat-operands", "SinkSplatOperands",
"false", "Disable sink splat operands to enable .vx, .vf,"
".wx, and .wf instructions">;
def TunePreferWInst
: SubtargetFeature<"prefer-w-inst", "PreferWInst", "true",
"Prefer instructions with W suffix">;
def TuneConditionalCompressedMoveFusion
: SubtargetFeature<"conditional-cmv-fusion", "HasConditionalCompressedMoveFusion",
"true", "Enable branch+c.mv fusion">;
def HasConditionalMoveFusion : Predicate<"Subtarget->hasConditionalMoveFusion()">;
def NoConditionalMoveFusion : Predicate<"!Subtarget->hasConditionalMoveFusion()">;
def TuneSiFive7 : SubtargetFeature<"sifive7", "RISCVProcFamily", "SiFive7",
"SiFive 7-Series processors">;
def TuneVentanaVeyron : SubtargetFeature<"ventana-veyron", "RISCVProcFamily", "VentanaVeyron",
"Ventana Veyron-Series processors">;
// Assume that lock-free native-width atomics are available, even if the target
// and operating system combination would not usually provide them. The user
// is responsible for providing any necessary __sync implementations. Code
// built with this feature is not ABI-compatible with code built without this
// feature, if atomic variables are exposed across the ABI boundary.
def FeatureForcedAtomics : SubtargetFeature<
"forced-atomics", "HasForcedAtomics", "true",
"Assume that lock-free native-width atomics are available">;
def HasAtomicLdSt
: Predicate<"Subtarget->hasStdExtA() || Subtarget->hasForcedAtomics()">;
def FeatureTaggedGlobals : SubtargetFeature<"tagged-globals",
"AllowTaggedGlobals",
"true", "Use an instruction sequence for taking the address of a global "
"that allows a memory tag in the upper address bits">;
def FeatureForcedSWShadowStack : SubtargetFeature<
"forced-sw-shadow-stack", "HasForcedSWShadowStack", "true",
"Implement shadow stack with software.">;
def HasForcedSWShadowStack : Predicate<"Subtarget->hasForcedSWShadowStack()">;
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