Re: [avr-gcc-list] Getting inline to work

[Bob Weber]

>     > address@hidden wrote:
>     > > Hello all
>     > > 
>     > > I'm having a difficult time trying to get inline to 
>     work.
>     > > 
>     > > I have:
>     > > 
>     > > // prototypes
>     > > static inline void foo(void);
>     > > static void bar(void);
>     > > 
>     > > static inline void foo(void)
>     > > {
>     > >     //...
>     > > }
>     > > 
>     > > static void bar(void)
>     > > {
>     > >     //...
>     > >     foo();
>     > >     //...
>     > >     foo();
>     > >     //...
>     > >     foo();
>     > >     //...
>     > > }
>     > > 
>     > > I use -std=gnu99 -Os as well as -Winline and I don't 
>     get 
>     > > any warnings / errors and the listing shows that bar is 
>     > > *calling* foo; i.e. foo isn't getting inlined.
>     > 
>     > Try -finline-limit=<your favourite number>, or -O2. With -
>     Os, avr-gcc 
>     > has a *very low* limit on the size of functions it will 
>     inline.
>     > 
>     > David Gay
>     > address@hidden
>     > 
>     
>     Tried -02. Tried -finline-limit=10000.
>     Still no luck. So I used a macro to force inlining.
>     
>     Thanks for the info anyway.
>     
>     Eric
I've had the same problem with inlines, even with optimization at -O3. It's just a suggestion to the compiler, or so I've read, and sometimes the compiler won't/cannot inline the function.

By using macros, it's not a suggestion any more, and it works. I'll stick with that approach.

Bob