//===-- 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. //===----------------------------------------------------------------------===// def FeatureStdExtZicsr : SubtargetFeature<"zicsr", "HasStdExtZicsr", "true", "'zicsr' (CSRs)">; def HasStdExtZicsr : Predicate<"Subtarget->hasStdExtZicsr()">, AssemblerPredicate<(all_of FeatureStdExtZicsr), "'Zicsr' (CSRs)">; def FeatureStdExtM : SubtargetFeature<"m", "HasStdExtM", "true", "'M' (Integer Multiplication and Division)">; def HasStdExtM : Predicate<"Subtarget->hasStdExtM()">, AssemblerPredicate<(all_of FeatureStdExtM), "'M' (Integer Multiplication and Division)">; def FeatureStdExtZmmul : SubtargetFeature<"zmmul", "HasStdExtZmmul", "true", "'Zmmul' (Integer Multiplication)">; def HasStdExtMOrZmmul : Predicate<"Subtarget->hasStdExtM() || Subtarget->hasStdExtZmmul()">, AssemblerPredicate<(any_of FeatureStdExtM, FeatureStdExtZmmul), "'M' (Integer Multiplication and Division) or " "'Zmmul' (Integer Multiplication)">; def FeatureStdExtA : SubtargetFeature<"a", "HasStdExtA", "true", "'A' (Atomic Instructions)">; def HasStdExtA : Predicate<"Subtarget->hasStdExtA()">, AssemblerPredicate<(all_of FeatureStdExtA), "'A' (Atomic Instructions)">; def FeatureStdExtF : SubtargetFeature<"f", "HasStdExtF", "true", "'F' (Single-Precision Floating-Point)", [FeatureStdExtZicsr]>; def HasStdExtF : Predicate<"Subtarget->hasStdExtF()">, AssemblerPredicate<(all_of FeatureStdExtF), "'F' (Single-Precision Floating-Point)">; def FeatureStdExtD : SubtargetFeature<"d", "HasStdExtD", "true", "'D' (Double-Precision Floating-Point)", [FeatureStdExtF]>; def HasStdExtD : Predicate<"Subtarget->hasStdExtD()">, AssemblerPredicate<(all_of FeatureStdExtD), "'D' (Double-Precision Floating-Point)">; def FeatureStdExtH : SubtargetFeature<"h", "HasStdExtH", "true", "'H' (Hypervisor)">; def HasStdExtH : Predicate<"Subtarget->hasStdExtH()">, AssemblerPredicate<(all_of FeatureStdExtH), "'H' (Hypervisor)">; def FeatureStdExtZihintpause : SubtargetFeature<"zihintpause", "HasStdExtZihintpause", "true", "'Zihintpause' (Pause Hint)">; def HasStdExtZihintpause : Predicate<"Subtarget->hasStdExtZihintpause()">, AssemblerPredicate<(all_of FeatureStdExtZihintpause), "'Zihintpause' (Pause Hint)">; def FeatureStdExtZihintntl : SubtargetFeature<"zihintntl", "HasStdExtZihintntl", "true", "'Zihintntl' (Non-Temporal Locality Hints)">; def HasStdExtZihintntl : Predicate<"Subtarget->hasStdExtZihintntl()">, AssemblerPredicate<(all_of FeatureStdExtZihintntl), "'Zihintntl' (Non-Temporal Locality Hints)">; def FeatureStdExtZifencei : SubtargetFeature<"zifencei", "HasStdExtZifencei", "true", "'Zifencei' (fence.i)">; def HasStdExtZifencei : Predicate<"Subtarget->hasStdExtZifencei()">, AssemblerPredicate<(all_of FeatureStdExtZifencei), "'Zifencei' (fence.i)">; def FeatureStdExtZicntr : SubtargetFeature<"zicntr", "HasStdExtZicntr", "true", "'Zicntr' (Base Counters and Timers)", [FeatureStdExtZicsr]>; def FeatureStdExtZihpm : SubtargetFeature<"zihpm", "HasStdExtZihpm", "true", "'Zihpm' (Hardware Performance Counters)", [FeatureStdExtZicsr]>; def FeatureStdExtZfhmin : SubtargetFeature<"zfhmin", "HasStdExtZfhmin", "true", "'Zfhmin' (Half-Precision Floating-Point Minimal)", [FeatureStdExtF]>; def HasStdExtZfhmin : Predicate<"Subtarget->hasStdExtZfhmin()">, AssemblerPredicate<(all_of FeatureStdExtZfhmin), "'Zfhmin' (Half-Precision Floating-Point Minimal)">; def FeatureStdExtZfh : SubtargetFeature<"zfh", "HasStdExtZfh", "true", "'Zfh' (Half-Precision Floating-Point)", [FeatureStdExtZfhmin]>; def HasStdExtZfh : Predicate<"Subtarget->hasStdExtZfh()">, AssemblerPredicate<(all_of FeatureStdExtZfh), "'Zfh' (Half-Precision Floating-Point)">; def NoStdExtZfh : Predicate<"!Subtarget->hasStdExtZfh()">; def HasStdExtZfhOrZfhmin : Predicate<"Subtarget->hasStdExtZfhmin()">, AssemblerPredicate<(all_of FeatureStdExtZfhmin), "'Zfh' (Half-Precision Floating-Point) or " "'Zfhmin' (Half-Precision Floating-Point Minimal)">; def FeatureStdExtZfinx : SubtargetFeature<"zfinx", "HasStdExtZfinx", "true", "'Zfinx' (Float in Integer)", [FeatureStdExtZicsr]>; def HasStdExtZfinx : Predicate<"Subtarget->hasStdExtZfinx()">, AssemblerPredicate<(all_of FeatureStdExtZfinx), "'Zfinx' (Float in Integer)">; def FeatureStdExtZdinx : SubtargetFeature<"zdinx", "HasStdExtZdinx", "true", "'Zdinx' (Double in Integer)", [FeatureStdExtZfinx]>; def HasStdExtZdinx : Predicate<"Subtarget->hasStdExtZdinx()">, AssemblerPredicate<(all_of FeatureStdExtZdinx), "'Zdinx' (Double in Integer)">; def FeatureStdExtZhinxmin : SubtargetFeature<"zhinxmin", "HasStdExtZhinxmin", "true", "'Zhinxmin' (Half Float in Integer Minimal)", [FeatureStdExtZfinx]>; def HasStdExtZhinxmin : Predicate<"Subtarget->hasStdExtZhinxmin()">, AssemblerPredicate<(all_of FeatureStdExtZhinxmin), "'Zhinxmin' (Half Float in Integer Minimal)">; def FeatureStdExtZhinx : SubtargetFeature<"zhinx", "HasStdExtZhinx", "true", "'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()">; def HasStdExtZhinxOrZhinxmin : Predicate<"Subtarget->hasStdExtZhinxmin()">, AssemblerPredicate<(all_of FeatureStdExtZhinxmin), "'Zhinx' (Half Float in Integer) or " "'Zhinxmin' (Half Float in Integer Minimal)">; def FeatureStdExtZfa : SubtargetFeature<"zfa", "HasStdExtZfa", "true", "'Zfa' (Additional Floating-Point)", [FeatureStdExtF]>; def HasStdExtZfa : Predicate<"Subtarget->hasStdExtZfa()">, AssemblerPredicate<(all_of FeatureStdExtZfa), "'Zfa' (Additional Floating-Point)">; def FeatureStdExtC : SubtargetFeature<"c", "HasStdExtC", "true", "'C' (Compressed Instructions)">; def HasStdExtC : Predicate<"Subtarget->hasStdExtC()">, AssemblerPredicate<(all_of FeatureStdExtC), "'C' (Compressed Instructions)">; def FeatureStdExtZba : SubtargetFeature<"zba", "HasStdExtZba", "true", "'Zba' (Address Generation Instructions)">; def HasStdExtZba : Predicate<"Subtarget->hasStdExtZba()">, AssemblerPredicate<(all_of FeatureStdExtZba), "'Zba' (Address Generation Instructions)">; def NotHasStdExtZba : Predicate<"!Subtarget->hasStdExtZba()">; def FeatureStdExtZbb : SubtargetFeature<"zbb", "HasStdExtZbb", "true", "'Zbb' (Basic Bit-Manipulation)">; def HasStdExtZbb : Predicate<"Subtarget->hasStdExtZbb()">, AssemblerPredicate<(all_of FeatureStdExtZbb), "'Zbb' (Basic Bit-Manipulation)">; def FeatureStdExtZbc : SubtargetFeature<"zbc", "HasStdExtZbc", "true", "'Zbc' (Carry-Less Multiplication)">; def HasStdExtZbc : Predicate<"Subtarget->hasStdExtZbc()">, AssemblerPredicate<(all_of FeatureStdExtZbc), "'Zbc' (Carry-Less Multiplication)">; def FeatureStdExtZbs : SubtargetFeature<"zbs", "HasStdExtZbs", "true", "'Zbs' (Single-Bit Instructions)">; def HasStdExtZbs : Predicate<"Subtarget->hasStdExtZbs()">, AssemblerPredicate<(all_of FeatureStdExtZbs), "'Zbs' (Single-Bit Instructions)">; def FeatureStdExtZbkb : SubtargetFeature<"zbkb", "HasStdExtZbkb", "true", "'Zbkb' (Bitmanip instructions for Cryptography)">; def HasStdExtZbkb : Predicate<"Subtarget->hasStdExtZbkb()">, AssemblerPredicate<(all_of FeatureStdExtZbkb), "'Zbkb' (Bitmanip instructions for Cryptography)">; def FeatureStdExtZbkx : SubtargetFeature<"zbkx", "HasStdExtZbkx", "true", "'Zbkx' (Crossbar permutation instructions)">; 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 : SubtargetFeature<"zbkc", "HasStdExtZbkc", "true", "'Zbkc' (Carry-less multiply instructions for " "Cryptography)">; 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)">; def FeatureStdExtZknd : SubtargetFeature<"zknd", "HasStdExtZknd", "true", "'Zknd' (NIST Suite: AES Decryption)">; def HasStdExtZknd : Predicate<"Subtarget->hasStdExtZknd()">, AssemblerPredicate<(all_of FeatureStdExtZknd), "'Zknd' (NIST Suite: AES Decryption)">; def FeatureStdExtZkne : SubtargetFeature<"zkne", "HasStdExtZkne", "true", "'Zkne' (NIST Suite: AES Encryption)">; 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 : SubtargetFeature<"zknh", "HasStdExtZknh", "true", "'Zknh' (NIST Suite: Hash Function Instructions)">; def HasStdExtZknh : Predicate<"Subtarget->hasStdExtZknh()">, AssemblerPredicate<(all_of FeatureStdExtZknh), "'Zknh' (NIST Suite: Hash Function Instructions)">; def FeatureStdExtZksed : SubtargetFeature<"zksed", "HasStdExtZksed", "true", "'Zksed' (ShangMi Suite: SM4 Block Cipher Instructions)">; def HasStdExtZksed : Predicate<"Subtarget->hasStdExtZksed()">, AssemblerPredicate<(all_of FeatureStdExtZksed), "'Zksed' (ShangMi Suite: SM4 Block Cipher Instructions)">; def FeatureStdExtZksh : SubtargetFeature<"zksh", "HasStdExtZksh", "true", "'Zksh' (ShangMi Suite: SM3 Hash Function Instructions)">; def HasStdExtZksh : Predicate<"Subtarget->hasStdExtZksh()">, AssemblerPredicate<(all_of FeatureStdExtZksh), "'Zksh' (ShangMi Suite: SM3 Hash Function " "Instructions)">; def FeatureStdExtZkr : SubtargetFeature<"zkr", "HasStdExtZkr", "true", "'Zkr' (Entropy Source Extension)">; def HasStdExtZkr : Predicate<"Subtarget->hasStdExtZkr()">, AssemblerPredicate<(all_of FeatureStdExtZkr), "'Zkr' (Entropy Source Extension)">; def FeatureStdExtZkn : SubtargetFeature<"zkn", "HasStdExtZkn", "true", "'Zkn' (NIST Algorithm Suite)", [FeatureStdExtZbkb, FeatureStdExtZbkc, FeatureStdExtZbkx, FeatureStdExtZkne, FeatureStdExtZknd, FeatureStdExtZknh]>; def FeatureStdExtZks : SubtargetFeature<"zks", "HasStdExtZks", "true", "'Zks' (ShangMi Algorithm Suite)", [FeatureStdExtZbkb, FeatureStdExtZbkc, FeatureStdExtZbkx, FeatureStdExtZksed, FeatureStdExtZksh]>; def FeatureStdExtZkt : SubtargetFeature<"zkt", "HasStdExtZkt", "true", "'Zkt' (Data Independent Execution Latency)">; def FeatureStdExtZk : SubtargetFeature<"zk", "HasStdExtZk", "true", "'Zk' (Standard scalar cryptography extension)", [FeatureStdExtZkn, FeatureStdExtZkr, FeatureStdExtZkt]>; def FeatureStdExtZca : SubtargetFeature<"zca", "HasStdExtZca", "true", "'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 : SubtargetFeature<"zcb", "HasStdExtZcb", "true", "'Zcb' (Compressed basic bit manipulation instructions)", [FeatureStdExtZca]>; def HasStdExtZcb : Predicate<"Subtarget->hasStdExtZcb()">, AssemblerPredicate<(all_of FeatureStdExtZcb), "'Zcb' (Compressed basic bit manipulation instructions)">; def FeatureStdExtZcd : SubtargetFeature<"zcd", "HasStdExtZcd", "true", "'Zcd' (Compressed Double-Precision Floating-Point Instructions)", [FeatureStdExtZca]>; def HasStdExtCOrZcd : Predicate<"Subtarget->hasStdExtC() || Subtarget->hasStdExtZcd()">, AssemblerPredicate<(any_of FeatureStdExtC, FeatureStdExtZcd), "'C' (Compressed Instructions) or " "'Zcd' (Compressed Double-Precision Floating-Point Instructions)">; def FeatureStdExtZcf : SubtargetFeature<"zcf", "HasStdExtZcf", "true", "'Zcf' (Compressed Single-Precision Floating-Point Instructions)", [FeatureStdExtZca]>; def FeatureStdExtZcmp : SubtargetFeature<"zcmp", "HasStdExtZcmp", "true", "'Zcmp' (sequenced instuctions for code-size reduction)", [FeatureStdExtZca]>; def HasStdExtZcmp : Predicate<"Subtarget->hasStdExtZcmp() && !Subtarget->hasStdExtC()">, AssemblerPredicate<(all_of FeatureStdExtZcmp), "'Zcmp' (sequenced instuctions for code-size reduction)">; def FeatureStdExtZcmt : SubtargetFeature<"zcmt", "HasStdExtZcmt", "true", "'Zcmt' (table jump instuctions for code-size reduction)", [FeatureStdExtZca, FeatureStdExtZicsr]>; def HasStdExtZcmt : Predicate<"Subtarget->hasStdExtZcmt()">, AssemblerPredicate<(all_of FeatureStdExtZcmt), "'Zcmt' (table jump instuctions for code-size reduction)">; def FeatureStdExtZce : SubtargetFeature<"zce", "HasStdExtZce", "true", "'Zce' (Compressed extensions for microcontrollers)", [FeatureStdExtZca, 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 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 FeatureStdExtZvl32b : SubtargetFeature<"zvl32b", "ZvlLen", "32", "'Zvl' (Minimum Vector Length) 32">; foreach i = { 6-16 } in { defvar I = !shl(1, i); def FeatureStdExtZvl#I#b : SubtargetFeature<"zvl"#I#"b", "ZvlLen", !cast(I), "'Zvl' (Minimum Vector Length) "#I, [!cast("FeatureStdExtZvl"#!srl(I, 1)#"b")]>; } def FeatureStdExtZve32x : SubtargetFeature<"zve32x", "HasStdExtZve32x", "true", "'Zve32x' (Vector Extensions for Embedded Processors " "with maximal 32 EEW)", [FeatureStdExtZicsr, FeatureStdExtZvl32b]>; def FeatureStdExtZve32f : SubtargetFeature<"zve32f", "HasStdExtZve32f", "true", "'Zve32f' (Vector Extensions for Embedded Processors " "with maximal 32 EEW and F extension)", [FeatureStdExtZve32x, FeatureStdExtF]>; def FeatureStdExtZve64x : SubtargetFeature<"zve64x", "HasStdExtZve64x", "true", "'Zve64x' (Vector Extensions for Embedded Processors " "with maximal 64 EEW)", [FeatureStdExtZve32x, FeatureStdExtZvl64b]>; def FeatureStdExtZve64f : SubtargetFeature<"zve64f", "HasStdExtZve64f", "true", "'Zve64f' (Vector Extensions for Embedded Processors " "with maximal 64 EEW and F extension)", [FeatureStdExtZve32f, FeatureStdExtZve64x]>; def FeatureStdExtZve64d : SubtargetFeature<"zve64d", "HasStdExtZve64d", "true", "'Zve64d' (Vector Extensions for Embedded Processors " "with maximal 64 EEW, F and D extension)", [FeatureStdExtZve64f, FeatureStdExtD]>; def FeatureStdExtV : SubtargetFeature<"v", "HasStdExtV", "true", "'V' (Vector Extension for Application Processors)", [FeatureStdExtZvl128b, FeatureStdExtZve64d]>; 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 HasVInstructionsF64 : Predicate<"Subtarget->hasVInstructionsF64()">; def HasVInstructionsFullMultiply : Predicate<"Subtarget->hasVInstructionsFullMultiply()">; def FeatureStdExtZfbfmin : SubtargetFeature<"experimental-zfbfmin", "HasStdExtZfbfmin", "true", "'Zfbfmin' (Scalar BF16 Converts)", [FeatureStdExtF]>; def HasStdExtZfbfmin : Predicate<"Subtarget->hasStdExtZfbfmin()">, AssemblerPredicate<(all_of FeatureStdExtZfbfmin), "'Zfbfmin' (Scalar BF16 Converts)">; def FeatureStdExtZvfbfmin : SubtargetFeature<"experimental-zvfbfmin", "HasStdExtZvfbfmin", "true", "'Zvbfmin' (Vector BF16 Converts)", [FeatureStdExtZve32f]>; def HasStdExtZvfbfmin : Predicate<"Subtarget->hasStdExtZvfbfmin()">, AssemblerPredicate<(all_of FeatureStdExtZvfbfmin), "'Zvfbfmin' (Vector BF16 Converts)">; def FeatureStdExtZvfbfwma : SubtargetFeature<"experimental-zvfbfwma", "HasStdExtZvfbfwma", "true", "'Zvfbfwma' (Vector BF16 widening mul-add)", [FeatureStdExtZvfbfmin, FeatureStdExtZfbfmin]>; def HasStdExtZvfbfwma : Predicate<"Subtarget->hasStdExtZvfbfwma()">, AssemblerPredicate<(all_of FeatureStdExtZvfbfwma), "'Zvfbfwma' (Vector BF16 widening mul-add)">; def HasVInstructionsBF16 : Predicate<"Subtarget->hasVInstructionsBF16()">; def FeatureStdExtZvfhmin : SubtargetFeature<"zvfhmin", "HasStdExtZvfhmin", "true", "'Zvfhmin' (Vector Half-Precision Floating-Point Minimal)", [FeatureStdExtZve32f]>; def FeatureStdExtZvfh : SubtargetFeature<"zvfh", "HasStdExtZvfh", "true", "'Zvfh' (Vector Half-Precision Floating-Point)", [FeatureStdExtZvfhmin, FeatureStdExtZfhmin]>; def HasVInstructionsF16 : Predicate<"Subtarget->hasVInstructionsF16()">; 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 HasStdExtZfhOrZvfh : Predicate<"Subtarget->hasStdExtZfh() || Subtarget->hasStdExtZvfh()">, AssemblerPredicate<(any_of FeatureStdExtZfh, FeatureStdExtZvfh), "'Zfh' (Half-Precision Floating-Point) or " "'Zvfh' (Vector Half-Precision Floating-Point)">; def FeatureStdExtZicbom : SubtargetFeature<"zicbom", "HasStdExtZicbom", "true", "'Zicbom' (Cache-Block Management Instructions)">; def HasStdExtZicbom : Predicate<"Subtarget->hasStdExtZicbom()">, AssemblerPredicate<(all_of FeatureStdExtZicbom), "'Zicbom' (Cache-Block Management Instructions)">; def FeatureStdExtZicboz : SubtargetFeature<"zicboz", "HasStdExtZicboz", "true", "'Zicboz' (Cache-Block Zero Instructions)">; def HasStdExtZicboz : Predicate<"Subtarget->hasStdExtZicboz()">, AssemblerPredicate<(all_of FeatureStdExtZicboz), "'Zicboz' (Cache-Block Zero Instructions)">; def FeatureStdExtZicbop : SubtargetFeature<"zicbop", "HasStdExtZicbop", "true", "'Zicbop' (Cache-Block Prefetch Instructions)">; def HasStdExtZicbop : Predicate<"Subtarget->hasStdExtZicbop()">, AssemblerPredicate<(all_of FeatureStdExtZicbop), "'Zicbop' (Cache-Block Prefetch Instructions)">; def FeatureStdExtSvnapot : SubtargetFeature<"svnapot", "HasStdExtSvnapot", "true", "'Svnapot' (NAPOT Translation Contiguity)">; def FeatureStdExtSvpbmt : SubtargetFeature<"svpbmt", "HasStdExtSvpbmt", "true", "'Svpbmt' (Page-Based Memory Types)">; def FeatureStdExtSvinval : SubtargetFeature<"svinval", "HasStdExtSvinval", "true", "'Svinval' (Fine-Grained Address-Translation Cache Invalidation)">; def HasStdExtSvinval : Predicate<"Subtarget->hasStdExtSvinval()">, AssemblerPredicate<(all_of FeatureStdExtSvinval), "'Svinval' (Fine-Grained Address-Translation Cache Invalidation)">; def FeatureStdExtZtso : SubtargetFeature<"experimental-ztso", "HasStdExtZtso", "true", "'Ztso' (Memory Model - Total Store Order)">; def HasStdExtZtso : Predicate<"Subtarget->hasStdExtZtso()">, AssemblerPredicate<(all_of FeatureStdExtZtso), "'Ztso' (Memory Model - Total Store Order)">; def NotHasStdExtZtso : Predicate<"!Subtarget->hasStdExtZtso()">; def FeatureStdExtZawrs : SubtargetFeature<"zawrs", "HasStdExtZawrs", "true", "'Zawrs' (Wait on Reservation Set)">; def HasStdExtZawrs : Predicate<"Subtarget->hasStdExtZawrs()">, AssemblerPredicate<(all_of FeatureStdExtZawrs), "'Zawrs' (Wait on Reservation Set)">; def FeatureStdExtZvkb : SubtargetFeature<"zvkb", "HasStdExtZvkb", "true", "'Zvkb' (Vector Bit-manipulation used in Cryptography)">; def HasStdExtZvkb : Predicate<"Subtarget->hasStdExtZvkb()">, AssemblerPredicate<(all_of FeatureStdExtZvkb), "'Zvkb' (Vector Bit-manipulation used in Cryptography)">; def FeatureStdExtZvbb : SubtargetFeature<"zvbb", "HasStdExtZvbb", "true", "'Zvbb' (Vector basic bit-manipulation instructions.)", [FeatureStdExtZvkb]>; def HasStdExtZvbb : Predicate<"Subtarget->hasStdExtZvbb()">, AssemblerPredicate<(all_of FeatureStdExtZvbb), "'Zvbb' (Vector basic bit-manipulation instructions.)">; def FeatureStdExtZvbc : SubtargetFeature<"zvbc", "HasStdExtZvbc", "true", "'Zvbc' (Vector Carryless Multiplication)">; def HasStdExtZvbc : Predicate<"Subtarget->hasStdExtZvbc()">, AssemblerPredicate<(all_of FeatureStdExtZvbc), "'Zvbc' (Vector Carryless Multiplication)">; def FeatureStdExtZvkg : SubtargetFeature<"zvkg", "HasStdExtZvkg", "true", "'Zvkg' (Vector GCM instructions for Cryptography)">; def HasStdExtZvkg : Predicate<"Subtarget->hasStdExtZvkg()">, AssemblerPredicate<(all_of FeatureStdExtZvkg), "'Zvkg' (Vector GCM instructions for Cryptography)">; def FeatureStdExtZvkned : SubtargetFeature<"zvkned", "HasStdExtZvkned", "true", "'Zvkned' (Vector AES Encryption & Decryption (Single Round))">; def HasStdExtZvkned : Predicate<"Subtarget->hasStdExtZvkned()">, AssemblerPredicate<(all_of FeatureStdExtZvkned), "'Zvkned' (Vector AES Encryption & Decryption (Single Round))">; def FeatureStdExtZvknha : SubtargetFeature<"zvknha", "HasStdExtZvknha", "true", "'Zvknha' (Vector SHA-2 (SHA-256 only))">; def HasStdExtZvknha : Predicate<"Subtarget->hasStdExtZvknha()">, AssemblerPredicate<(all_of FeatureStdExtZvknha), "'Zvknha' (Vector SHA-2 (SHA-256 only))">; def FeatureStdExtZvknhb : SubtargetFeature<"zvknhb", "HasStdExtZvknhb", "true", "'Zvknhb' (Vector SHA-2 (SHA-256 and SHA-512))", [FeatureStdExtZve64x]>; 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 : SubtargetFeature<"zvksed", "HasStdExtZvksed", "true", "'Zvksed' (SM4 Block Cipher Instructions)">; def HasStdExtZvksed : Predicate<"Subtarget->hasStdExtZvksed()">, AssemblerPredicate<(all_of FeatureStdExtZvksed), "'Zvksed' (SM4 Block Cipher Instructions)">; def FeatureStdExtZvksh : SubtargetFeature<"zvksh", "HasStdExtZvksh", "true", "'Zvksh' (SM3 Hash Function Instructions)">; def HasStdExtZvksh : Predicate<"Subtarget->hasStdExtZvksh()">, AssemblerPredicate<(all_of FeatureStdExtZvksh), "'Zvksh' (SM3 Hash Function Instructions)">; def FeatureStdExtZvkt : SubtargetFeature<"zvkt", "HasStdExtZvkt", "true", "'Zvkt' (Vector Data-Independent Execution Latency)">; // Zvk short-hand extensions def FeatureStdExtZvkn : SubtargetFeature<"zvkn", "HasStdExtZvkn", "true", "This extension is shorthand for the following set of " "other extensions: Zvkned, Zvknhb, Zvkb and Zvkt.", [FeatureStdExtZvkned, FeatureStdExtZvknhb, FeatureStdExtZvkb, FeatureStdExtZvkt]>; def FeatureStdExtZvknc : SubtargetFeature<"zvknc", "HasStdExtZvknc", "true", "This extension is shorthand for the following set of " "other extensions: Zvkn and Zvbc.", [FeatureStdExtZvkn, FeatureStdExtZvbc]>; def FeatureStdExtZvkng : SubtargetFeature<"zvkng", "HasStdExtZvkng", "true", "This extension is shorthand for the following set of " "other extensions: Zvkn and Zvkg.", [FeatureStdExtZvkn, FeatureStdExtZvkg]>; def FeatureStdExtZvks : SubtargetFeature<"zvks", "HasStdExtZvks", "true", "This extension is shorthand for the following set of " "other extensions: Zvksed, Zvksh, Zvkb and Zvkt.", [FeatureStdExtZvksed, FeatureStdExtZvksh, FeatureStdExtZvkb, FeatureStdExtZvkt]>; def FeatureStdExtZvksc : SubtargetFeature<"zvksc", "HasStdExtZvksc", "true", "This extension is shorthand for the following set of " "other extensions: Zvks and Zvbc.", [FeatureStdExtZvks, FeatureStdExtZvbc]>; def FeatureStdExtZvksg : SubtargetFeature<"zvksg", "HasStdExtZvksg", "true", "This extension is shorthand for the following set of " "other extensions: Zvks and Zvkg.", [FeatureStdExtZvks, FeatureStdExtZvkg]>; def FeatureStdExtZicfilp : SubtargetFeature<"experimental-zicfilp", "HasStdExtZicfilp", "true", "'Zicfilp' (Landing pad)">; def HasStdExtZicfilp : Predicate<"Subtarget->hasStdExtZicfilp()">, AssemblerPredicate<(all_of FeatureStdExtZicfilp), "'Zicfilp' (Landing pad)">; def FeatureStdExtZicond : SubtargetFeature<"experimental-zicond", "HasStdExtZicond", "true", "'Zicond' (Integer Conditional Operations)">; def HasStdExtZicond : Predicate<"Subtarget->hasStdExtZicond()">, AssemblerPredicate<(all_of FeatureStdExtZicond), "'Zicond' (Integer Conditional Operations)">; def FeatureStdExtZimop : SubtargetFeature<"experimental-zimop", "HasStdExtZimop", "true", "'Zimop' (May-Be-Operations)">; def HasStdExtZimop : Predicate<"Subtarget->hasStdExtZimop()">, AssemblerPredicate<(all_of FeatureStdExtZimop), "'Zimop' (May-Be-Operations)">; def FeatureStdExtZcmop : SubtargetFeature<"experimental-zcmop", "HasStdExtZcmop", "true", "'Zcmop' (Compressed May-Be-Operations)", [FeatureStdExtZca]>; def HasStdExtZcmop : Predicate<"Subtarget->hasStdExtZcmop()">, AssemblerPredicate<(all_of FeatureStdExtZcmop), "'Zcmop' (Compressed May-Be-Operations)">; def FeatureStdExtZicfiss : SubtargetFeature<"experimental-zicfiss", "HasStdExtZicfiss", "true", "'Zicfiss' (Shadow stack)", [FeatureStdExtZicsr, FeatureStdExtZimop]>; def HasStdExtZicfiss : Predicate<"Subtarget->hasStdExtZicfiss()">, AssemblerPredicate<(all_of FeatureStdExtZicfiss), "'Zicfiss' (Shadow stack)">; def NoHasStdExtZicfiss : Predicate<"!Subtarget->hasStdExtZicfiss()">; def FeatureStdExtSmaia : SubtargetFeature<"smaia", "HasStdExtSmaia", "true", "'Smaia' (Smaia encompasses all added CSRs and all " "modifications to interrupt response behavior that the " "AIA specifies for a hart, over all privilege levels.)", []>; def FeatureStdExtSsaia : SubtargetFeature<"ssaia", "HasStdExtSsaia", "true", "'Ssaia' (Ssaia is essentially the same as Smaia except " "excluding the machine-level CSRs and behavior not " "directly visible to supervisor level.)", []>; 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 FeatureStdExtZacas : SubtargetFeature<"experimental-zacas", "HasStdExtZacas", "true", "'Zacas' (Atomic Compare-And-Swap Instructions)">; def HasStdExtZacas : Predicate<"Subtarget->hasStdExtZacas()">, AssemblerPredicate<(all_of FeatureStdExtZacas), "'Zacas' (Atomic Compare-And-Swap Instructions)">; //===----------------------------------------------------------------------===// // Vendor extensions //===----------------------------------------------------------------------===// def FeatureVendorXVentanaCondOps : SubtargetFeature<"xventanacondops", "HasVendorXVentanaCondOps", "true", "'XVentanaCondOps' (Ventana Conditional Ops)">; def HasVendorXVentanaCondOps : Predicate<"Subtarget->hasVendorXVentanaCondOps()">, AssemblerPredicate<(all_of FeatureVendorXVentanaCondOps), "'XVentanaCondOps' (Ventana Conditional Ops)">; def FeatureVendorXTHeadBa : SubtargetFeature<"xtheadba", "HasVendorXTHeadBa", "true", "'xtheadba' (T-Head address calculation instructions)">; def HasVendorXTHeadBa : Predicate<"Subtarget->hasVendorXTHeadBa()">, AssemblerPredicate<(all_of FeatureVendorXTHeadBa), "'xtheadba' (T-Head address calculation instructions)">; def FeatureVendorXTHeadBb : SubtargetFeature<"xtheadbb", "HasVendorXTHeadBb", "true", "'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 : SubtargetFeature<"xtheadbs", "HasVendorXTHeadBs", "true", "'xtheadbs' (T-Head single-bit instructions)">; def HasVendorXTHeadBs : Predicate<"Subtarget->hasVendorXTHeadBs()">, AssemblerPredicate<(all_of FeatureVendorXTHeadBs), "'xtheadbs' (T-Head single-bit instructions)">; def FeatureVendorXTHeadCondMov : SubtargetFeature<"xtheadcondmov", "HasVendorXTHeadCondMov", "true", "'xtheadcondmov' (T-Head conditional move instructions)">; def HasVendorXTHeadCondMov : Predicate<"Subtarget->hasVendorXTHeadCondMov()">, AssemblerPredicate<(all_of FeatureVendorXTHeadCondMov), "'xtheadcondmov' (T-Head conditional move instructions)">; def FeatureVendorXTHeadCmo : SubtargetFeature<"xtheadcmo", "HasVendorXTHeadCmo", "true", "'xtheadcmo' (T-Head cache management instructions)">; def HasVendorXTHeadCmo : Predicate<"Subtarget->hasVendorXTHeadCmo()">, AssemblerPredicate<(all_of FeatureVendorXTHeadCmo), "'xtheadcmo' (T-Head cache management instructions)">; def FeatureVendorXTHeadFMemIdx : SubtargetFeature<"xtheadfmemidx", "HasVendorXTHeadFMemIdx", "true", "'xtheadfmemidx' (T-Head FP Indexed Memory Operations)", [FeatureStdExtF]>; def HasVendorXTHeadFMemIdx : Predicate<"Subtarget->hasVendorXTHeadFMemIdx()">, AssemblerPredicate<(all_of FeatureVendorXTHeadFMemIdx), "'xtheadfmemidx' (T-Head FP Indexed Memory Operations)">; def FeatureVendorXTHeadMac : SubtargetFeature<"xtheadmac", "HasVendorXTHeadMac", "true", "'xtheadmac' (T-Head Multiply-Accumulate Instructions)">; def HasVendorXTHeadMac : Predicate<"Subtarget->hasVendorXTHeadMac()">, AssemblerPredicate<(all_of FeatureVendorXTHeadMac), "'xtheadmac' (T-Head Multiply-Accumulate Instructions)">; def FeatureVendorXTHeadMemIdx : SubtargetFeature<"xtheadmemidx", "HasVendorXTHeadMemIdx", "true", "'xtheadmemidx' (T-Head Indexed Memory Operations)">; def HasVendorXTHeadMemIdx : Predicate<"Subtarget->hasVendorXTHeadMemIdx()">, AssemblerPredicate<(all_of FeatureVendorXTHeadMemIdx), "'xtheadmemidx' (T-Head Indexed Memory Operations)">; def FeatureVendorXTHeadMemPair : SubtargetFeature<"xtheadmempair", "HasVendorXTHeadMemPair", "true", "'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 : SubtargetFeature<"xtheadsync", "HasVendorXTHeadSync", "true", "'xtheadsync' (T-Head multicore synchronization instructions)">; def HasVendorXTHeadSync : Predicate<"Subtarget->hasVendorXTHeadSync()">, AssemblerPredicate<(all_of FeatureVendorXTHeadSync), "'xtheadsync' (T-Head multicore synchronization instructions)">; def FeatureVendorXTHeadVdot : SubtargetFeature<"xtheadvdot", "HasVendorXTHeadVdot", "true", "'xtheadvdot' (T-Head Vector Extensions for Dot)", [FeatureStdExtV]>; def HasVendorXTHeadVdot : Predicate<"Subtarget->hasVendorXTHeadVdot()">, AssemblerPredicate<(all_of FeatureVendorXTHeadVdot), "'xtheadvdot' (T-Head Vector Extensions for Dot)">; def FeatureVendorXSfvcp : SubtargetFeature<"xsfvcp", "HasVendorXSfvcp", "true", "'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 : SubtargetFeature<"xsfvqmaccdod", "HasVendorXSfvqmaccdod", "true", "'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 : SubtargetFeature<"xsfvqmaccqoq", "HasVendorXSfvqmaccqoq", "true", "'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 : SubtargetFeature<"xsfvfwmaccqqq", "HasVendorXSfvfwmaccqqq", "true", "'XSfvfwmaccqqq' (SiFive Matrix Multiply Accumulate Instruction and 4-by-4))", [FeatureStdExtZve32f, FeatureStdExtZvfbfmin]>; def HasVendorXSfvfwmaccqqq : Predicate<"Subtarget->hasVendorXSfvfwmaccqqq()">, AssemblerPredicate<(all_of FeatureVendorXSfvfwmaccqqq), "'XSfvfwmaccqqq' (SiFive Matrix Multiply Accumulate Instruction and 4-by-4))">; def FeatureVendorXSfvfnrclipxfqf : SubtargetFeature<"xsfvfnrclipxfqf", "HasVendorXSfvfnrclipxfqf", "true", "'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 FeatureVendorXCVelw : SubtargetFeature<"xcvelw", "HasVendorXCVelw", "true", "'XCVelw' (CORE-V Event Load Word)">; def HasVendorXCVelw : Predicate<"Subtarget->hasVendorXCVelw()">, AssemblerPredicate<(any_of FeatureVendorXCVelw), "'XCVelw' (CORE-V Event Load Word)">; def FeatureVendorXCVbitmanip : SubtargetFeature<"xcvbitmanip", "HasVendorXCVbitmanip", "true", "'XCVbitmanip' (CORE-V Bit Manipulation)">; def HasVendorXCVbitmanip : Predicate<"Subtarget->hasVendorXCVbitmanip()">, AssemblerPredicate<(all_of FeatureVendorXCVbitmanip), "'XCVbitmanip' (CORE-V Bit Manipulation)">; def FeatureVendorXCVmac : SubtargetFeature<"xcvmac", "HasVendorXCVmac", "true", "'XCVmac' (CORE-V Multiply-Accumulate)">; def HasVendorXCVmac : Predicate<"Subtarget->hasVendorXCVmac()">, AssemblerPredicate<(all_of FeatureVendorXCVmac), "'XCVmac' (CORE-V Multiply-Accumulate)">; def FeatureVendorXCVmem : SubtargetFeature<"xcvmem", "HasVendorXCVmem", "true", "'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 : SubtargetFeature<"xcvalu", "HasVendorXCValu", "true", "'XCValu' (CORE-V ALU Operations)">; def HasVendorXCValu : Predicate<"Subtarget->hasVendorXCValu()">, AssemblerPredicate<(all_of FeatureVendorXCValu), "'XCValu' (CORE-V ALU Operations)">; def FeatureVendorXCVsimd : SubtargetFeature<"xcvsimd", "HasVendorXCvsimd", "true", "'XCVsimd' (CORE-V SIMD ALU)">; def HasVendorXCVsimd : Predicate<"Subtarget->hasVendorXCVsimd()">, AssemblerPredicate<(any_of FeatureVendorXCVsimd), "'XCVsimd' (CORE-V SIMD ALU)">; def FeatureVendorXCVbi : SubtargetFeature<"xcvbi", "HasVendorXCVbi", "true", "'XCVbi' (CORE-V Immediate Branching)">; def HasVendorXCVbi : Predicate<"Subtarget->hasVendorXCVbi()">, AssemblerPredicate<(all_of FeatureVendorXCVbi), "'XCVbi' (CORE-V Immediate Branching)">; //===----------------------------------------------------------------------===// // 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 FeatureRVE : SubtargetFeature<"e", "IsRVE", "true", "Implements RV{32,64}E (provides 16 rather than 32 GPRs)">; def IsRVE : Predicate<"Subtarget->isRVE()">, AssemblerPredicate<(all_of FeatureRVE)>; 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 FeatureTrailingSeqCstFence : SubtargetFeature<"seq-cst-trailing-fence", "EnableSeqCstTrailingFence", "true", "Enable trailing fence for seq-cst store.">; def FeatureFastUnalignedAccess : SubtargetFeature<"fast-unaligned-access", "HasFastUnalignedAccess", "true", "Has reasonably performant unaligned " "loads and stores (both scalar and vector)">; def FeaturePostRAScheduler : SubtargetFeature<"use-postra-scheduler", "UsePostRAScheduler", "true", "Schedule again after register allocation">; def TuneNoOptimizedZeroStrideLoad : SubtargetFeature<"no-optimized-zero-stride-load", "HasOptimizedZeroStrideLoad", "false", "Hasn't 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 TuneLUIADDIFusion : SubtargetFeature<"lui-addi-fusion", "HasLUIADDIFusion", "true", "Enable LUI+ADDI macrofusion">; def TuneAUIPCADDIFusion : SubtargetFeature<"auipc-addi-fusion", "HasAUIPCADDIFusion", "true", "Enable AUIPC+ADDI macrofusion">; def TuneZExtHFusion : SubtargetFeature<"zexth-fusion", "HasZExtHFusion", "true", "Enable SLLI+SRLI to be fused to zero extension of halfword">; def TuneZExtWFusion : SubtargetFeature<"zextw-fusion", "HasZExtWFusion", "true", "Enable SLLI+SRLI to be fused to zero extension of word">; def TuneShiftedZExtWFusion : SubtargetFeature<"shifted-zextw-fusion", "HasShiftedZExtWFusion", "true", "Enable SLLI+SRLI to be fused when computing (shifted) zero extension of word">; def TuneLDADDFusion : SubtargetFeature<"ld-add-fusion", "HasLDADDFusion", "true", "Enable LD+ADD macrofusion.">; 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()">; 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", [TuneNoDefaultUnroll, TuneShortForwardBranchOpt]>; 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">;