riscv-gnu-toolchain
riscv-v-spec
riscv-gnu-toolchain | riscv-v-spec | |
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35 | 43 | |
3,121 | 858 | |
4.2% | - | |
8.2 | 6.0 | |
7 days ago | about 1 month ago | |
C | Assembly | |
GNU General Public License v3.0 or later | Creative Commons Attribution 4.0 |
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riscv-gnu-toolchain
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Is RISC-V ready for HPC? Evaluating the 64-core Sophon SG2042 RISC-V CPU
> no absurdely and grotesquely massive and complex compilers anywhere
Absence of evidence is not evidence of absence, and anyway there's not even an absence: https://github.com/riscv-collab/riscv-gnu-toolchain https://llvm.org/docs/RISCVUsage.html
> feature creeps on computer language syntax nowhere to be found
At least one of us is very confused, and in case it's me, how do language details matter to RISC-V?
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Help trying to build for riscv64gc-unknown-linux-musl
I then looked at the .cargo/config.toml provided by the guide and saw that it wasn't actually statically compiling the code. After a bit of tinkering and building my own toolchain from here, I ended up with this config.toml file:
- GNU toolchain for RISC-V including GCC
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Building a toolchain suitable for compiling V extension code
b) collabriscv - essentially gcc 12.2 + binutils master/2.40 as per https://github.com/riscv-collab/riscv-gnu-toolchain
- How do i specify vendor name while building the GNU toolchain?
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GCC 13 Adds RISC-V T-Head Vendor Extension Collection
Or would it be better to take what is in https://github.com/riscv-collab/riscv-gnu-toolchain which is gcc 12.2 and start from there?
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How to build toolchain with Zbs extension?
I'm not able to build https://github.com/riscv-collab/riscv-gnu-toolchain.git like this:
riscv-v-spec
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Scaleway launches RISC-V servers
Here are some resources I can recommend:
RVV spec (also look at the examples in the repo): https://github.com/riscv/riscv-v-spec/blob/master/v-spec.ado...
RVV intrinsics viewer: https://dzaima.github.io/intrinsics-viewer
Tutorial: RISC-V Vector Extension Demystified (3 hour video going over every instruction): https://youtu.be/oTaOd8qr53U
RISC-V Vector extension in a nutshell: https://fprox.substack.com/p/risc-v-vector-extension-in-a-nu...
If you want to see a more complex example/real world application, then you might also be ibterested ib my article about vectorizing unicode conversions: https://camel-cdr.github.io/rvv-bench-results/articles/vecto...
In terms of development I'd recommend using qemu and a cross compiler, or if you want hardware try to get the kendryte k230 (currently the only sbc with rvv 1.0 support) or wait a bit for better hardware (BPI-F3 and sg2380 should release this year).
- Cray-1 performance vs. modern CPUs
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x86 vs ARM; Vector and Matrix Extensions; How do they compare?
And this isn't just some theoretical or something unlikely to happen - the official spec already contains such a bug. If the writers of the spec can't get things right, even with the small amount of code in the spec, I don't have high hopes that less informed programmers will. RVV being absurdly complicated (IMO, compared to SVE2 and AVX10) doesn't help its cause here.
- riscv64 is now an official Debian architecture (rebootstrap in progress)
- Vector vs SIMD
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LLVM's libc Gets Much Faster memcpy For RISC-V
Will the reference one actually be the most optimal one on future hardware?
- Is there any good place to find a copy-paste-able quick reference on RISC-V extensions? Particularly for the vector extension
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Building a toolchain suitable for compiling V extension code
I'll do a deep dive into the https://gms.tf/riscv-vector.html#getting-started tutorial, and probably pop the proverbial stack and just study RVV 0.7.1 on its own (using https://github.com/riscv/riscv-v-spec/releases/tag/0.7.1).
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A weird idea for using RV32E on a RV32I core - multithreaded microcontrollers?
I see your point. You can file a request for it at https://github.com/riscv/riscv-v-spec/issues if you want to pitch it to the relevant ISA bodies. The bar for implementing it pretty high.
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Examining the Top Five Fallacies About RISC-V
It's not "unusual"; using data registers for mask is a valid tradeoff especially for low-end implementations, whereas higher-end architectures can easily use shadow registers. Discussed in depth at https://github.com/riscv/riscv-v-spec/issues/811
What are some alternatives?
riscv-binutils-gdb - RISC-V backports for binutils-gdb. Development is done upstream at the FSF.
riscv-p-spec - RISC-V Packed SIMD Extension
risc-v-examples - RISC-V examples for GD32V, K210, and QEMU
highway - Performance-portable, length-agnostic SIMD with runtime dispatch
rvv-llvm - This repository is outdated, support for RISC-V is now developed in upstream LLVM
highway - Highway - A Modern Javascript Transitions Manager
buildroot - Buildroot, making embedded Linux easy. Note that this is not the official repository, but only a mirror. The official Git repository is at http://git.buildroot.net/buildroot/. Do not open issues or file pull requests here.
riscv-bitmanip - Working draft of the proposed RISC-V Bitmanipulation extension
freedom-tools - Tools for SiFive's Freedom Platform
vroom - VRoom! RISC-V CPU
xv6-riscv - Xv6 for RISC-V
learn-fpga - Learning FPGA, yosys, nextpnr, and RISC-V