OSDT Weekly 第353期

近期活动预告

编译社区的八卦信息

GCC

• [PATCH v3] match.pd: (A>>C) != (B>>C) -> (A^B) >= (1<<C) [PR110010] https://gcc.gnu.org/pipermail/gcc-patches/2026-April/711972.html

• [PATCH] libstdc++: Export explicit instantiations for C++20 members of std::string https://gcc.gnu.org/pipermail/gcc-patches/2026-April/711997.html

• [PATCH v2 1/2] xtensa: Avoid redundant MEM_P() checks in memory constraint definitions https://gcc.gnu.org/pipermail/gcc-patches/2026-April/712160.html

• [PATCH] c++: Implement CWG3135 - constexpr structured bindings with prvalues from tuples https://gcc.gnu.org/pipermail/gcc-patches/2026-April/712174.html

• [PATCH] Correct x86: Call ix86_access_stack_p only for larger alignment https://gcc.gnu.org/pipermail/gcc-patches/2026-April/712182.html

• [PATCH][vect]: replace vect_scalar_cost_multiplier with param_vect_allow_possibly_not_worthwhile_vectorizations https://gcc.gnu.org/pipermail/gcc-patches/2026-April/712452.html

BINUTILS

本周风平浪静

GDB

本周风平浪静

GLIBC

讨论了LLM生成代码向GNU提交代码的规则

• glibc AI policy https://sourceware.org/pipermail/libc-alpha/2026-April/176395.html

• [PATCH v2] posix: Add POSIX aliases to some spawn functions https://sourceware.org/pipermail/libc-alpha/2026-April/176377.html

• [PATCH v8 0/6] elf: THP-aware load segment alignment https://sourceware.org/pipermail/libc-alpha/2026-April/176440.html

LLVM/Clang/LLDB/LLD

本节内容来自 LLVM Weekly 第 640 期， Alex Bradbury 大哥持续稳定输出。

• 所有开源社区都正在面对的问题： Jakub Kuderski started a discussion thread on concerns about the number of AI-generated bug fixes being submitted. It's a lengthy thread with a lot of viewpoints expressed that I feel I couldn't do justice to summarise. But even where there are different views on the solution, there is plenty of concern about maintainer load.

• 国内香山团队的伙伴？ "buggfg" started a discussion on the idea of 'RVCC' an incubator for high-performance RISC-V compiler optimisations. In general there re some concerns about producing an LLVM fork and wondering whether other methods might achieve similar results (and suggestions to discuss further through the biweekly RISC-V contributor calls, or in external groups).

• 欢迎围观： Notes from the 1st April LLVM Project Council meeting are now available.

• 欢迎围观： LLVM Foundation board minutes from March are now available.

• MLIR的风还是吹向了 JavaScript： Zhixun Tan and a long list of collaborators proposed JSIR: A high-level IR ofr JavaScript. Built in MLIR, it notably supports high fiedlity round-trips between source to/from AST to/from JSIR.

QEMU

• [PATCH v5 0/6] target/riscv: Implement Smsdid and Smmpt extension https://lore.kernel.org/qemu-devel/20260408140635.42546-1-zhiwei_liu@linux.alibaba.com/

• [PATCH v6 0/9] target/riscv: Add Zvfbfa extension support https://lore.kernel.org/qemu-devel/20260402125234.1371897-1-max.chou@sifive.com/

• [PATCH v6 0/7] Add RISC-V big-endian target support https://lore.kernel.org/qemu-devel/20260406154935.144674-1-djordje.todorovic@htecgroup.com/

• [PATCH qemu v2 0/7] Update opentitan uart (part of supporting opentitan version 1) https://lore.kernel.org/qemu-devel/177564643888.23414.7922925369077631439-0@git.sr.ht/

• [PATCH v11 00/21] target/arm: single-binary https://lore.kernel.org/qemu-devel/20260407222208.271838-1-pierrick.bouvier@linaro.org/

• [PATCH v2 00/14] Add ARM64 support for MSHV accelerator https://lore.kernel.org/qemu-devel/20260402-mshv_accel_arm64_supp-v2-0-754895c15e9e@linux.microsoft.com/

• [PATCH v3 00/33] hw/arm: Introduce generic FDT-driven machine https://lore.kernel.org/qemu-devel/20260402215629.745866-1-ruslichenko.r@gmail.com/

• [PATCH v4 00/28] Hexagon system emulation - Part 2/3 https://lore.kernel.org/qemu-devel/20260408041953.1899532-1-brian.cain@oss.qualcomm.com/

• [PATCH v4 0/9] Hexagon system emulation - Part 3/3 https://lore.kernel.org/qemu-devel/20260408042149.1902796-1-brian.cain@oss.qualcomm.com/

• [PATCH v10 00/30] Secure IPL Support for SCSI Scheme of virtio-blk/virtio-scsi Devices https://lore.kernel.org/qemu-devel/20260402221453.1602899-1-zycai@linux.ibm.com/

• [PATCH 00/15] s390x/pci: Implement migration for emulated devices https://lore.kernel.org/qemu-devel/20260402022921.298818-1-kshk@linux.ibm.com/

• [PATCH v3 00/14] intel_iommu: Enable PASID support for passthrough device https://lore.kernel.org/qemu-devel/20260403035541.18355-1-zhenzhong.duan@intel.com/

• [PATCH v3 00/10] hw/tpm: CRB chunking capability to handle PQC https://lore.kernel.org/qemu-devel/20260406141735.25844-1-armenon@redhat.com/

• [RFC PATCH 00/10] vfio: PCI device passthrough on Apple Silicon Macs https://lore.kernel.org/qemu-devel/20260405072857.66484-1-scottjgo@gmail.com/

RISC-V in China

• https://ruyisdk.cn 每日八卦都在这里了。

RT-Thread 社区

• 风平浪静。招募小编！

AI Compilers

• 风平浪静。招募小编！

本周工具链岗位

往期社招及实习生招聘长期有效。

• 知名芯片公司诚招AI基础软件专家
• Nvidia在北京办公室新开放了一个AI负责人岗位。点击这里查看
• 京东开放JavaScript引擎开发岗位，参与京东JS引擎能力建设

本周推荐阅读

本周推荐：《漫长的战败》

作者：桥本明子

译者：李鹏程

推荐：小编1号

去年，代表日本极右翼思想高市早苗上台之后，中日关系遭遇了重大的倒退，并且已经开始影响到两国在多项技术领域的交流。去年和今年在日本东京的 RISC-V Tokyo Day，从中国大陆前往的参展商和参会者都出现了可感知的下降。在这个局面下，重新拿起这本《漫长的战败： 日本的文化创伤、记忆与认同》，对于理解目前日本作为一个政权国家的走向有着指导性的意义。作者展示了历史的复杂性，对各个维度和历史阶段的日本各派别表现进行了描述。