OSDT Weekly 第350期 · OSDT Weekly

近期活动预告

3/20 LLVM 北京线下活动通知（Beijing LLVM Meetup） https://mp.weixin.qq.com/s/RAZIP40VF3jUbYxfewq4LA

[PATCH GCC17-stage1] aarch64: Add peephole2 to sink extension past csel for cinc https://gcc.gnu.org/pipermail/gcc-patches/2026-March/710484.html

一个探讨gcc后端中，小于word_mode的machine mode扩展到word_mode时,如何减少非必要的sign\zero extend指令的讨论

Questions on PROMOTE_MODE, function_promote_mode https://gcc.gnu.org/pipermail/gcc-patches/2026-March/710494.html
[PATCH GCC17-stage1] riscv: Optimize power-of-2 boundary comparisons in conditional moves https://gcc.gnu.org/pipermail/gcc-patches/2026-March/710496.html
[PATCH 0/3] RISC-V: Compiler support for HWASAN https://gcc.gnu.org/pipermail/gcc-patches/2026-March/710570.html
[PATCH GCC17-stage1] tree-optimization: Add pass_widen_accumulator to widen narrow loop accumulators https://gcc.gnu.org/pipermail/gcc-patches/2026-March/710577.html
[PATCH 0/2] c++: store TYPE_FIELDS in declaration order https://gcc.gnu.org/pipermail/gcc-patches/2026-March/710638.html
[RFC PATCH v2 0/4] Renesas RX FDPIC support https://gcc.gnu.org/pipermail/gcc-patches/2026-March/710704.html
[PATCH v3 0/2] aarch64: Add support for 2025 architecture feature https://gcc.gnu.org/pipermail/gcc-patches/2026-March/thread.html

本节内容来自 LLVM Weekly 第 637 期， Alex Bradbury 大哥持续稳定输出。

有要去的伙伴么？ The schedule for the MLIR Workshop at EuroLLVM was announced.
正常发版： LLVM 22.1.1 was released.
Gilles Grimaud posted an RFC on a RISC-V ropi-rwpi profile for split flash/RAM embedded systems. This allows code to be reloctable within executable storage and avoids requiring runtime relocation in .text.

[RFC PATCH 0/6] Implements RISC-V S-mode Physical Memory Protection (SPMP) and its extensions https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05812.html
[RFC PATCH 0/7] target/arm: Add FEAT_MEC (Memory Encryption) support https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05833.html
[PATCH v5 0/6] target/arm: ISV=0 data abort emulation library https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05477.html
[PATCH for-11.0 v4 0/8] hw/arm/smmuv3-accel: Support AUTO properties https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05799.html
[PATCH 0/5] i386/sev: Add TCG-emulated AMD SEV guest support https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05395.html
[PATCH v5 0/8] hw/nvme: add basic live migration support https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05357.html
[PATCH 0/2] vfio: Implement device features for vfio-user https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05558.html
[PATCH 00/60] ui: add standalone VNC server over D-Bus https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05271.html
[RFC PATCH 0/9] plugins: Introduce Fault Injection framework and API extensions https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05693.html
[PATCH v4 0/3] hvf: map granule abstraction, configurable IPA, and MAP_FIXED alignment fix https://lists.nongnu.org/archive/html/qemu-devel/2026-03/msg05484.html

往期社招及实习生招聘长期有效。

本周推荐：《机关功课51讲》

作者：张传禄