https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107931
--- Comment #18 from ishikawa,chiaki <ishikawa at yk dot rim.or.jp> --- I reported the issue to the following github for a very fast hashing function library. https://github.com/Cyan4973/xxHash/issues/800 >From the discussion there, I figured -Og does not define __NO_INLINE__ as -O0 would define it. Well the discussion refers to the problem mentioned earlier about the same issue. In there, the following mentions something about __NO_INLINE__. https://github.com/Cyan4973/xxHash/pull/720#issuecomment-1414481935 So I settled on manually define __NO_INLINE__ on the compiler command line. This makes it the compilation succeed. (The code seems to be written in such a manner that always_inline is not declared for the two functions if __NO_INLINE__ is defiend.) It would be great if -Og can define macro __NO_INLINE__ as -O0 does. Oh wait, -fno-inline has the same effect(?).
