OSDT Weekly 第299期 · OSDT Weekly

编译社区的八卦信息

[PATCH] _Hashtable fancy pointer support https://gcc.gnu.org/pipermail/gcc-patches/2025-March/678438.html
[PATCH] libstdc++: Add from_range_t constructors to debug ordered containers https://gcc.gnu.org/pipermail/gcc-patches/2025-March/678486.html
[PATCHSET] Update Rust frontend 21/03/2024 3/4 https://gcc.gnu.org/pipermail/gcc-patches/2025-March/678635.html
[PATCH] change cbl_field_data_t::etc_t::value from _Float128 to tree https://gcc.gnu.org/pipermail/gcc-patches/2025-March/678787.html
[PATCH] libstdc++: Fix std::vector::append_range for overlapping ranges https://gcc.gnu.org/pipermail/gcc-patches/2025-March/678900.html
[PATCH] RISC-V: Allow redirecting function calls to the same FMV clone https://gcc.gnu.org/pipermail/gcc-patches/2025-March/678918.html

[PATCH 0/5] ld: Pass $NOPIE_CFLAGS and $NOPIE_LDFLAGS to more tests https://sourceware.org/pipermail/binutils/2025-March/140099.html
[PATCH v1 00/14] AArch64 AEABI build attributes (a.k.a. object attributes v2) https://sourceware.org/pipermail/binutils/2025-March/140112.html
[PATCH v2] dwarf: Dump .debug_loclists only for DWARF-5 https://sourceware.org/pipermail/binutils/2025-March/140154.html

本节内容来自 LLVM Weekly 第 586 期， Alex Bradbury 大哥持续稳定输出。

收藏： Min-Yih Hsu blogged about calculating throughput with LLVM's scheduling model.
越来越重要了： The LLVM security response group 2024 transparency report was published.
小发布： LLVM 20.1.1 was released.
国内的朋友？ Shilei Tian would like to introduce a sentinel pointer value to DataLayout.
感谢 Tom： Tom Stellard has created an allow list of third-party GitHub Actions.
好久没关注过Windows了： Andrew Rogers shared a PSA on work to annotate LLVM public interfaces as part of efforts to build LLVM as a DLL on Windows.
厉害了！好像是来自巴西的开发者： The DAGCombiner learned to avoid store merging across function calls if the spilling is unprofitable. This can make a big difference on some RISC-V inputs, such as a greater than 10% reduction in runtime for 544.nab_r from SPEC on the BananaPi-F3 in the tested configuration. f138e36.
高通的动作很快： MC layer (assembler/disassembler) support was added for the RISC-V vendor extensions Xqcibi (branch immediate), Xqcisim (simulation hints), Xqcilb (long branch), and Xqcisync (sync delay) from Qualcomm. 036c6cb, 467e5a1, 0744d49, 3840f78.
LangRef documentation was added for llvm.readsteadycounter. cc2a86a.
国内的朋友？ Assembler support was added for the RISC-V Zilsd and Zclsd extensions ((compressed) load/store pair instructions). Also experimental assembler support for the Zvqdotq (vector quad widening dot product) extension. 480202f, eb77061.

RT-Thread v5.2.0 正式发布！此版本不仅是内核技术的重大升级，更标志着生态扩展、开发者支持与社区协作的全方位提升。详情见: https://mp.weixin.qq.com/s/q-y-N8lVJcrVi9BCrk1eEw。5.2.0 的 RelaseNotes 可以访问 https://github.com/RT-Thread/rt-thread/releases/tag/v5.2.0。
RT-Thread Smart 携手 K230/K230D 打造多核 RISC-V 高性能嵌入式操作系统。为 AI 边缘计算领域带来了一站式国产化解决方案，以“快速启动、高效 AI 加速、安全可靠”等特性，重新定义了智能终端开发的边界。详情见: https://mp.weixin.qq.com/s/KDYveBbSFJpbZgMvGmgaGg。
“小马智行” 携手 RT-Thread 睿赛德深耕自动驾驶技术领域，在近期举办的 RT-Thread 睿赛德开发者大会上，“小马智行” 展示了与国内领先的嵌入式操作系统 RT-Thread 睿赛德的合作成果，以及自身在智能汽车行业多个场景的前沿应用。详情见: https://finance.sina.com.cn/jjxw/2025-03-04/doc-inennutp2737758.shtml。

往期社招及实习生招聘长期有效。

本周推荐：《翻译的危险：清代中国与大英帝国之间两位译者的非凡人生》

作者：沈艾娣

译者：赵妍杰