@c Copyright (C) 2025-2026 Free Software Foundation, Inc.
@c This is part of the GCC manual.
@c For copying conditions, see the file gcc/doc/include/fdl.texi.

@c This file is generated automatically using
@c  gcc/config/riscv/gen-riscv-ext-texi.cc from:
@c       gcc/config/riscv/riscv-ext.def
@c       gcc/config/riscv/riscv-opts.h

@c Please *DO NOT* edit manually.

@multitable @columnfractions .25 .15 .6
@headitem Extension Name @tab Supported Version @tab Description

@item @samp{g}
@tab -
@tab General-purpose computing base extension; @samp{g} expands to
@samp{i}, @samp{m}, @samp{a}, @samp{f}, @samp{d}, @samp{zicsr} and
@samp{zifencei}.

@item @samp{e}
@tab 2.0
@tab Reduced base integer extension

@item @samp{i}
@tab 2.0 2.1
@tab Base integer extension

@item @samp{m}
@tab 2.0
@tab Integer multiplication and division extension

@item @samp{a}
@tab 2.0 2.1
@tab Atomic extension

@item @samp{f}
@tab 2.0 2.2
@tab Single-precision floating-point extension

@item @samp{d}
@tab 2.0 2.2
@tab Double-precision floating-point extension

@item @samp{c}
@tab 2.0
@tab Compressed extension

@item @samp{b}
@tab 1.0
@tab Standard extension for bit manipulation functions

@item @samp{v}
@tab 1.0
@tab Vector extension

@item @samp{h}
@tab 1.0
@tab Hypervisor extension

@item @samp{zic64b}
@tab 1.0
@tab Cache block size is 64 bytes

@item @samp{zicbom}
@tab 1.0
@tab Cache-block management extension

@item @samp{zicbop}
@tab 1.0
@tab Cache-block prefetch extension

@item @samp{zicboz}
@tab 1.0
@tab Cache-block zero extension

@item @samp{ziccamoa}
@tab 1.0
@tab Main memory supports all atomics in A

@item @samp{ziccif}
@tab 1.0
@tab Main memory supports instruction fetch with atomicity requirement

@item @samp{zicclsm}
@tab 1.0
@tab Main memory supports misaligned loads/stores

@item @samp{ziccrse}
@tab 1.0
@tab Main memory supports forward progress on LR/SC sequences

@item @samp{zicfilp}
@tab 1.0
@tab Control-flow integrity landing pad extension

@item @samp{zicfiss}
@tab 1.0
@tab Control-flow integrity shadow stack extension

@item @samp{zicntr}
@tab 2.0
@tab Standard extension for base counters and timers

@item @samp{zicond}
@tab 1.0
@tab Integer conditional operations extension

@item @samp{zicsr}
@tab 2.0
@tab Control and status register access extension

@item @samp{zifencei}
@tab 2.0
@tab Instruction-fetch fence extension

@item @samp{zihintntl}
@tab 1.0
@tab Non-temporal locality hints extension

@item @samp{zihintpause}
@tab 2.0
@tab Pause hint extension

@item @samp{zihpm}
@tab 2.0
@tab Standard extension for hardware performance counters

@item @samp{zimop}
@tab 1.0
@tab May-be-operations extension

@item @samp{zilsd}
@tab 1.0
@tab Load/store pair instructions extension

@item @samp{zmmul}
@tab 1.0
@tab Integer multiplication extension

@item @samp{za128rs}
@tab 1.0
@tab Reservation set size of 128 bytes

@item @samp{za64rs}
@tab 1.0
@tab Reservation set size of 64 bytes

@item @samp{zaamo}
@tab 1.0
@tab Atomic memory operations extension

@item @samp{zabha}
@tab 1.0
@tab Byte and halfword atomic memory operations extension

@item @samp{zacas}
@tab 1.0
@tab Atomic compare-and-swap instructions extension

@item @samp{zalasr}
@tab 1.0
@tab Atomic load-acquire and store-release extension

@item @samp{zalrsc}
@tab 1.0
@tab Load-reserved/store-conditional subset of the A extension

@item @samp{zawrs}
@tab 1.0
@tab Wait-on-reservation-set extension

@item @samp{zama16b}
@tab 1.0
@tab Misaligned loads, stores, and AMOs that are fully contained within a naturally-aligned 16-byte boundary are atomic

@item @samp{zfa}
@tab 1.0
@tab Additional floating-point extension

@item @samp{zfbfmin}
@tab 1.0
@tab Minimal BF16 support extension

@item @samp{zfh}
@tab 1.0
@tab Half-precision floating-point extension

@item @samp{zfhmin}
@tab 1.0
@tab Minimal half-precision floating-point extension

@item @samp{zfinx}
@tab 1.0
@tab Single-precision floating-point in integer registers extension

@item @samp{zdinx}
@tab 1.0
@tab Double-precision floating-point in integer registers extension

@item @samp{zca}
@tab 1.0
@tab Integer compressed instruction extension

@item @samp{zcb}
@tab 1.0
@tab Simple compressed instruction extension

@item @samp{zcd}
@tab 1.0
@tab Compressed double-precision floating point loads and stores extension

@item @samp{zce}
@tab 1.0
@tab Compressed instruction extensions for embedded processors

@item @samp{zcf}
@tab 1.0
@tab Compressed single-precision floating point loads and stores extension

@item @samp{zcmop}
@tab 1.0
@tab Compressed may-be-operations extension

@item @samp{zcmp}
@tab 1.0
@tab Compressed push pop extension

@item @samp{zcmt}
@tab 1.0
@tab Table jump instruction extension

@item @samp{zclsd}
@tab 1.0
@tab Compressed load/store pair instructions extension

@item @samp{zba}
@tab 1.0
@tab Address calculation extension

@item @samp{zbb}
@tab 1.0
@tab Basic bit manipulation extension

@item @samp{zbc}
@tab 1.0
@tab Carry-less multiplication extension

@item @samp{zbkb}
@tab 1.0
@tab Cryptography bit-manipulation extension

@item @samp{zbkc}
@tab 1.0
@tab Cryptography carry-less multiply extension

@item @samp{zbkx}
@tab 1.0
@tab Cryptography crossbar permutation extension

@item @samp{zbs}
@tab 1.0
@tab Single-bit operation extension

@item @samp{zk}
@tab 1.0
@tab Standard scalar cryptography extension

@item @samp{zkn}
@tab 1.0
@tab NIST algorithm suite extension

@item @samp{zknd}
@tab 1.0
@tab AES Decryption extension

@item @samp{zkne}
@tab 1.0
@tab AES Encryption extension

@item @samp{zknh}
@tab 1.0
@tab Hash function extension

@item @samp{zkr}
@tab 1.0
@tab Entropy source extension

@item @samp{zks}
@tab 1.0
@tab ShangMi algorithm suite extension

@item @samp{zksed}
@tab 1.0
@tab SM4 block cipher extension

@item @samp{zksh}
@tab 1.0
@tab SM3 hash function extension

@item @samp{zkt}
@tab 1.0
@tab Data independent execution latency extension

@item @samp{ztso}
@tab 1.0
@tab Total store ordering extension

@item @samp{zvbb}
@tab 1.0
@tab Vector basic bit-manipulation extension

@item @samp{zvbc}
@tab 1.0
@tab Vector carry-less multiplication extension

@item @samp{zve32f}
@tab 1.0
@tab Vector extensions for embedded processors

@item @samp{zve32x}
@tab 1.0
@tab Vector extensions for embedded processors

@item @samp{zve64d}
@tab 1.0
@tab Vector extensions for embedded processors

@item @samp{zve64f}
@tab 1.0
@tab Vector extensions for embedded processors

@item @samp{zve64x}
@tab 1.0
@tab Vector extensions for embedded processors

@item @samp{zvfbfmin}
@tab 1.0
@tab Vector BF16 converts extension

@item @samp{zvfofp8min}
@tab 0.2
@tab Vector FP8 minimum extension

@item @samp{zvfbfwma}
@tab 1.0
@tab Vector BF16 widening multiply/add extension

@item @samp{zvfh}
@tab 1.0
@tab Vector half-precision floating-point extension

@item @samp{zvfhmin}
@tab 1.0
@tab Vector minimal half-precision floating-point extension

@item @samp{zvkb}
@tab 1.0
@tab Vector cryptography bit-manipulation extension

@item @samp{zvkg}
@tab 1.0
@tab Vector GCM/GMAC extension

@item @samp{zvkn}
@tab 1.0
@tab Vector NIST Algorithm Suite extension, @samp{zvkn} will expand to

@item @samp{zvknc}
@tab 1.0
@tab Vector NIST Algorithm Suite with carry-less multiply extension, @samp{zvknc}

@item @samp{zvkned}
@tab 1.0
@tab Vector AES block cipher extension

@item @samp{zvkng}
@tab 1.0
@tab Vector NIST Algorithm Suite with GCM extension, @samp{zvkng} will expand

@item @samp{zvknha}
@tab 1.0
@tab Vector SHA-2 secure hash extension

@item @samp{zvknhb}
@tab 1.0
@tab Vector SHA-2 secure hash extension

@item @samp{zvks}
@tab 1.0
@tab Vector ShangMi algorithm suite extension, @samp{zvks} will expand

@item @samp{zvksc}
@tab 1.0
@tab Vector ShangMi algorithm suite with carry-less multiplication extension,

@item @samp{zvksed}
@tab 1.0
@tab Vector SM4 block cipher extension

@item @samp{zvksg}
@tab 1.0
@tab Vector ShangMi algorithm suite with GCM extension

@item @samp{zvksh}
@tab 1.0
@tab Vector SM3 secure hash extension

@item @samp{zvkt}
@tab 1.0
@tab Vector data independent execution latency extension

@item @samp{zvl1024b}
@tab 1.0
@tab Minimum vector length standard extensions

@item @samp{zvl128b}
@tab 1.0
@tab Minimum vector length standard extensions

@item @samp{zvl16384b}
@tab 1.0
@tab Minimum vector length standard extension

@item @samp{zvl2048b}
@tab 1.0
@tab Minimum vector length standard extensions

@item @samp{zvl256b}
@tab 1.0
@tab Minimum vector length standard extensions

@item @samp{zvl32768b}
@tab 1.0
@tab Minimum vector length standard extension

@item @samp{zvl32b}
@tab 1.0
@tab Minimum vector length standard extensions

@item @samp{zvl4096b}
@tab 1.0
@tab Minimum vector length standard extensions

@item @samp{zvl512b}
@tab 1.0
@tab Minimum vector length standard extensions

@item @samp{zvl64b}
@tab 1.0
@tab Minimum vector length standard extensions

@item @samp{zvl65536b}
@tab 1.0
@tab Minimum vector length standard extension

@item @samp{zvl8192b}
@tab 1.0
@tab Minimum vector length standard extension

@item @samp{zhinx}
@tab 1.0
@tab Half-precision floating-point in integer registers extension

@item @samp{zhinxmin}
@tab 1.0
@tab Minimal half-precision floating-point in integer registers extension

@item @samp{zvabd}
@tab 0.7
@tab Vector absolute difference extension.

@item @samp{sdtrig}
@tab 1.0
@tab Debug triggers extension

@item @samp{sha}
@tab 1.0
@tab The augmented hypervisor extension

@item @samp{shcounterenw}
@tab 1.0
@tab Support writeable enables for any supported counter

@item @samp{shgatpa}
@tab 1.0
@tab SvNNx4 mode supported for all modes supported by satp

@item @samp{shlcofideleg}
@tab 1.0
@tab Delegating LCOFI interrupts to VS-mode

@item @samp{shtvala}
@tab 1.0
@tab The htval register provides all needed values

@item @samp{shvstvala}
@tab 1.0
@tab The vstval register provides all needed values

@item @samp{shvstvecd}
@tab 1.0
@tab The vstvec register supports direct mode

@item @samp{shvsatpa}
@tab 1.0
@tab The vsatp register supports all modes supported by satp

@item @samp{smaia}
@tab 1.0
@tab Advanced interrupt architecture extension

@item @samp{smcntrpmf}
@tab 1.0
@tab Cycle and instret privilege mode filtering

@item @samp{smcsrind}
@tab 1.0
@tab Machine-level indirect CSR access

@item @samp{smepmp}
@tab 1.0
@tab PMP enhancements for memory access and execution prevention on machine mode

@item @samp{smmpm}
@tab 1.0
@tab Supervisor-mode pointer masking extension

@item @samp{smnpm}
@tab 1.0
@tab Supervisor-mode pointer masking extension

@item @samp{smrnmi}
@tab 1.0
@tab Resumable non-maskable interrupts

@item @samp{smstateen}
@tab 1.0
@tab State enable extension

@item @samp{smdbltrp}
@tab 1.0
@tab Double trap extensions

@item @samp{ssaia}
@tab 1.0
@tab Advanced interrupt architecture extension for supervisor mode

@item @samp{ssccptr}
@tab 1.0
@tab Main memory supports page table reads

@item @samp{sscofpmf}
@tab 1.0
@tab Count overflow and filtering extension

@item @samp{sscounterenw}
@tab 1.0
@tab Support writeable enables for any supported counter

@item @samp{sscsrind}
@tab 1.0
@tab Supervisor-mode indirect CSR access

@item @samp{ssnpm}
@tab 1.0
@tab Supervisor-mode pointer masking extension

@item @samp{sspm}
@tab 1.0
@tab Supervisor-mode pointer masking extension

@item @samp{ssstateen}
@tab 1.0
@tab Supervisor-mode state-enable extension

@item @samp{sstc}
@tab 1.0
@tab Supervisor-mode timer interrupts extension

@item @samp{sstvala}
@tab 1.0
@tab Stval provides all needed values

@item @samp{sstvecd}
@tab 1.0
@tab Stvec supports direct mode

@item @samp{ssstrict}
@tab 1.0
@tab Unimplemented reserved encodings raise illegal instruction exceptions and no non-conforming extensions are present

@item @samp{ssdbltrp}
@tab 1.0
@tab Double trap extensions

@item @samp{ssu64xl}
@tab 1.0
@tab UXLEN=64 must be supported

@item @samp{supm}
@tab 1.0
@tab User-mode pointer masking extension

@item @samp{svinval}
@tab 1.0
@tab Fine-grained address-translation cache invalidation extension

@item @samp{svnapot}
@tab 1.0
@tab NAPOT translation contiguity extension

@item @samp{svpbmt}
@tab 1.0
@tab Page-based memory types extension

@item @samp{svvptc}
@tab 1.0
@tab Extension for obviating memory-management instructions after marking PTEs valid

@item @samp{svadu}
@tab 1.0
@tab Hardware updating of A/D bits extension

@item @samp{svade}
@tab 1.0
@tab Cause exception when hardware updating of A/D bits is disabled

@item @samp{svbare}
@tab 1.0
@tab Satp mode bare is supported

@item @samp{xcvalu}
@tab 1.0
@tab Core-V miscellaneous ALU extension

@item @samp{xcvbi}
@tab 1.0
@tab Core-V immediate branch extension

@item @samp{xcvelw}
@tab 1.0
@tab Core-V event load word extension

@item @samp{xcvmac}
@tab 1.0
@tab Core-V multiply-accumulate extension

@item @samp{xcvsimd}
@tab 1.0
@tab Core-V SIMD extension

@item @samp{xsfcease}
@tab 1.0
@tab SiFive CEASE instruction extension

@item @samp{xsfvcp}
@tab 1.0
@tab SiFive VCIX vector coprocessor extension

@item @samp{xsfvfnrclipxfqf}
@tab 1.0
@tab SiFive FP32-to-int8 ranged clip instructions

@item @samp{xsfvqmaccdod}
@tab 1.0
@tab SiFive int8 matrix multiplication extension

@item @samp{xsfvqmaccqoq}
@tab 1.0
@tab SiFive int8 matrix multiplication extension

@item @samp{xtheadba}
@tab 1.0
@tab T-head address calculation extension

@item @samp{xtheadbb}
@tab 1.0
@tab T-head basic bit-manipulation extension

@item @samp{xtheadbs}
@tab 1.0
@tab T-head single-bit instructions extension

@item @samp{xtheadcmo}
@tab 1.0
@tab T-head cache management operations extension

@item @samp{xtheadcondmov}
@tab 1.0
@tab T-head conditional move extension

@item @samp{xtheadfmemidx}
@tab 1.0
@tab T-head indexed memory operations for floating-point registers extension

@item @samp{xtheadfmv}
@tab 1.0
@tab T-head double floating-point high-bit data transmission extension

@item @samp{xtheadint}
@tab 1.0
@tab T-head acceleration interruption extension

@item @samp{xtheadmac}
@tab 1.0
@tab T-head multiply-accumulate extension

@item @samp{xtheadmemidx}
@tab 1.0
@tab T-head indexed memory operation extension

@item @samp{xtheadmempair}
@tab 1.0
@tab T-head two-GPR memory operation extension

@item @samp{xtheadsync}
@tab 1.0
@tab T-head multi-core synchronization extension

@item @samp{xtheadvector}
@tab 1.0
@tab T-head vector extension

@item @samp{xventanacondops}
@tab 1.0
@tab Ventana integer conditional operations extension

@item @samp{xmipscmov}
@tab 1.0
@tab Mips conditional move extension

@item @samp{xmipscbop}
@tab 1.0
@tab Mips prefetch extension

@item @samp{xandesperf}
@tab 5.0
@tab Andes performance extension

@item @samp{xandesbfhcvt}
@tab 5.0
@tab Andes bfloat16 conversion extension

@item @samp{xandesvbfhcvt}
@tab 5.0
@tab Andes vector bfloat16 conversion extension

@item @samp{xandesvsintload}
@tab 5.0
@tab Andes vector INT4 load extension

@item @samp{xandesvpackfph}
@tab 5.0
@tab Andes vector packed FP16 extension

@item @samp{xandesvdot}
@tab 5.0
@tab Andes vector dot product extension

@item @samp{xsmtvdot}
@tab 1.0
@tab SpacemiT vector dot product extension

@end multitable
