OSDT Weekly 第202期 · OSDT Weekly

编译社区的八卦信息

Juzhe持续推进LOOP IVOPT patch, almost there! [PATCH V11] VECT: Add decrement IV support in Loop Vectorizer https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618724.html
IBM仍然在一点一点的扣PowerPC的支持。 [committed] rs6000: Enable REE pass by default https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618748.html
[PATCH 0/3] Refactor memory block operations https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618490.html
Intel关于安全特性的patch [PATCH] Provide -fcf-protection=branch,return. https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618263.html
[PATCH] Turn on LRA on all targets https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618636.html
RISC-V后端开发者，华人隐约占据半壁江山
[PATCH v9] RISC-V: Add the 'zfa' extension, version 0.2 https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618583.html
[PATCH V2] RISC-V: Add FRM and rounding mode operand into floating point intrinsics https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618614.html
[PATCH 0/7] openmp: OpenMP 5.1 loop transformation directives https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618556.html
Intel的Pan Li在RISC-V的开发非常活跃 [PATCH v2] RISC-V: Optimize vsetvl AVL for VLS VLMAX auto-vectorization https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618510.html
[PATCH] Machine_Mode: Extend machine_mode from 8 to 16 bits https://gcc.gnu.org/pipermail/gcc-patches/2023-May/618261.html

以下值得关注的内容来自小编9号的整理和推荐（LLVM IR 的变更）：

本节内容来自 LLVM Weekly 第 489 期， Alex Bradbury 大哥持续稳定输出。

上周的 Euro LLVM 2023 大成功： It was yet another successful EuroLLVM last week - thank you as always to the organisers and everyone involved. It was great to catch up with so many people (or make new connections).
收藏： Fabien Sanglard authored a series of articles on compiler drivers.
收藏： Yahwant Singh blogged about LLVM's loop unroll.
关注， false pos 挺麻烦： Mikhail Goncharov proposes moving premerge CI scripts to the LLVM monorepo and disabling some tests to remove false positives. Mikhail also made a general update.
要改风格： Tobias Hieta posted an update on Python code style and reformatting discussions, outlining the planned next steps.
国内的朋友？ Zheng Qian proposed extended loop idiom recognition to replace scalar math in loops with equivalent vector math. Respondents suggested alternate approaches may be better.
做RVV的伙伴可以关注： A scheduling model was committed for the RISC-V V extension on the SiFive 7 series. 1a85581.
恭喜乌鑫龙同学： Experimental MC layer support was added for the RISC-V Zcmp extension. 6b55e91.
能看懂么： SuffixTree was refactored to use LLVM-style RTTI and split into separate files. c2f0c20, 6cf993e.
恭喜 Qihan Cai 同学🎉 Codegen support was added for the RISC-V zhinx and zhinxmin extensions. 773b0aa.
新的RV贡献者： An optimized memcpy implementation for RISC-V was added to LLVM's libc. f4a3549.

往期社招及实习生招聘长期有效。

本周推荐：《生死疲劳》

作者：莫言