http://www.duoduokou.com/c/17962778487689850847.html WebApr 1, 2024 · initial GCC11 issue goes away when disable strict aliasing we have places in code which violates strict aliasing rule I guess we need do disable strict aliasing. disable strict aliasing optimization ( -fno-strict-aliasing option for GCC and LLVM) or fix all places in kernel code where we violate strict aliasing rule (IMO, it's hardly achievable)
Type-pun problems - IBM
Web*RFC] perf tools: Fix strict alias issue for find_first_bit @ 2014-02-26 17:14 Jiri Olsa 2014-02-26 17:18 ` Peter Zijlstra 2014-03-02 8:57 ` [tip:perf/urgent] perf tools: Fix strict alias issue for find_first_bit tip-bot for Jiri Olsa 0 siblings, 2 replies; 4+ messages in thread From: Jiri Olsa @ 2014-02-26 17:14 UTC (permalink / raw) To: linux-kernel Cc: Jiri Olsa, Corey Ashford, … Web纯C多态性、类型双关和严格别名。这有多合法?,c,polymorphism,language-lawyer,strict-aliasing,type-punning,C,Polymorphism,Language Lawyer,Strict Aliasing,Type Punning,我一直在努力弄清楚下面的内容有多合法,我真的需要一些帮助 #include #include typedef struct foo { int foo; int bar; } foo; void make_foo(void * p) { foo * this ... shoe stores destiny
[LLVMdev] strict aliasing and LLVM - Google Groups
WebMay 23, 2024 · The strict aliasing rules can be surprising because the way optimizers take advantage of them doesn’t mesh well with the popular belief that pointers are “just numbers”. Ultimately, I think there are practical benefits to understanding the rules even if you disagree with them. WebJul 8, 2024 · The Strict Aliasing rule is enabled by default on optimization levels 2 and beyond, and when one tries to compile a program with aforementioned details the … WebJul 25, 2024 · What is the strict aliasing rule in C? The strict aliasing rule makes this setup illegal: dereferencing a pointer that aliases an object that is not of a compatible type or one of the other types allowed by C 2011 6.5 paragraph 7 1 is undefined behavior. Is there such a thing as an aliasing violation? rachel rays thanksgiving recipes