C++玄学预编译优化

最新推荐文章于 2024-03-31 19:52:01 发布

蜗角虚名羊

最新推荐文章于 2024-03-31 19:52:01 发布

阅读量624

点赞数

分类专栏：杂

杂专栏收录该内容

27 篇文章

订阅专栏

本文探讨了C++代码的高级优化技巧，包括删除空指针检查、内联函数调用优化等，并展示了如何使用GCC编译器的预处理指令实现这些优化。此外，还介绍了如何利用AVX和SSE2指令集加速数据处理，适用于追求高性能计算的开发者。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

自为风月马前卒

#pragma GCC diagnostic error "-std=c++11"
#pragma GCC optimize("-fdelete-null-pointer-checks,inline-functions-called-once,-funsafe-loop-optimizations,-fexpensive-optimizations,-foptimize-sibling-calls,-ftree-switch-conversion,-finline-small-functions,inline-small-functions,-frerun-cse-after-loop,-fhoist-adjacent-loads,-findirect-inlining,-freorder-functions,no-stack-protector,-fpartial-inlining,-fsched-interblock,-fcse-follow-jumps,-fcse-skip-blocks,-falign-functions,-fstrict-overflow,-fstrict-aliasing,-fschedule-insns2,-ftree-tail-merge,inline-functions,-fschedule-insns,-freorder-blocks,-fwhole-program,-funroll-loops,-fthread-jumps,-fcrossjumping,-fcaller-saves,-fdevirtualize,-falign-labels,-falign-loops,-falign-jumps,unroll-loops,-fsched-spec,-ffast-math,Ofast,inline,-fgcse,-fgcse-lm,-fipa-sra,-ftree-pre,-ftree-vrp,-fpeephole2",3)
#pragma GCC target("avx","sse2")