OSDT Weekly 第255期 · OSDT Weekly

欢迎来到 OSDT Weekly 第 255 期。我们即将又一次突破新的 bit 长度， 8 个 bits 已经不够用了！

编译社区的八卦信息

[PATCH 0/4]AArch64: support conditional early clobbers on certain operations https://gcc.gnu.org/pipermail/gcc-patches/2024-May/651763.html
[PATCH] LoongArch: Guard REGNO with REG_P in loongarch_expand_conditional_move [PR115169] https://gcc.gnu.org/pipermail/gcc-patches/2024-May/652419.html
[Patch, aarch64, middle-end] v3: Move pair_fusion pass from aarch64 to middle-end https://gcc.gnu.org/pipermail/gcc-patches/2024-May/652345.html
[wwwdocs] Document reimplementation of GNU threads library on Windows https://gcc.gnu.org/pipermail/gcc-patches/2024-May/651899.html
[PATCH] MIPS: Remove -m(no-)lra option https://gcc.gnu.org/pipermail/gcc-patches/2024-May/651810.html

本节内容来自 LLVM Weekly 第 542 期， Alex Bradbury 大哥持续稳定输出。

The next Cambridge compiler social will take place on June 19th at the Computer Laboratory. Be sure to RSVP.
如期而至： LLVM 18.1.6 was released. This is the last planned release for 18.1.x.
研究生同学们可以看看毕业算不算： The call for papers for the tenth workshop on the LLVM compiler infrastructure in HPC is out.
有伙伴研究了么，讲讲？ Vasileios Porpodas kicked off an RFC discussion on introducing the "sandbox vectorizer", an experimental modular vectorizer. This involves a transactional IR allowing the reversion of IR state if a transformation is found not to be profitable.
祝贺，接下来试试RISC-V？ John Regehr shared the good news that the AArch64 translation validation fuzzer is struggling to find new miscompilation bugs.
这个名字一眼就看出来是咱们社区的小伙伴！ "linuxlonelyeagle" suggested adding an memref.null operation to MLIR's memref dialect.
Inlining是“优化之母”么？ Simeon is seeking feedback on adding support for recursive inlining to LLVM.
学吧： The current status of VPlan for the loop vectorizer was documented. 99de3a6.
RISC-V的草案标准真的越来越细碎了： RISC-V profiles that are not yet ratified are now gated behind the -menable-experimental-extensions flag. e5a277b, 891d687.
AI反推技术数据类型的演进： New AArch64 intrinsics were added for bfloat16 min/max/minnm/maxnm. f7392f4.
方便了： Flang gained initial debuginfo support for local variables. cd5ee27.

[PATCH v2 0/1] riscv, gdbstub.c: fix reg_width in ricsv_gen_dynamic_vector_feature(), https://lists.gnu.org/archive/html/qemu-riscv/2024-05/msg00175.html
[PATCH v2 0/2] target/riscv: Minor fixes and improvements for Virtual IRQs, https://lists.gnu.org/archive/html/qemu-riscv/2024-05/msg00185.html
[PATCH v2 0/3] RISC-V virt MHP support, https://lists.gnu.org/archive/html/qemu-riscv/2024-05/msg00202.html
[PATCH 0/4] target/riscv: Implement May-Be-Operations(zimop) extension, https://lists.gnu.org/archive/html/qemu-riscv/2024-05/msg00207.html

往期社招及实习生招聘长期有效。

本周推荐：《爆发式赢单》

作者：倪建伟