Eric Botcazou wrote: >> For what is worth I did the test again but this time I separated the main >> and f1 in two separate C files. I compiled them separately and then linked >> them together. This time the function was never inlined (even if there is >> just one or two calls, i.e. NC=1 or 2). >> > > You need LTO (-flto) to inline between different compilation units. > > Not sure if I understood right, but I compiled with -flto in both cases. Actually it's good that it didn't inline this time because I compiled with -Os too and inlining would make the code size bigger. It's weird though that when compiling main and f1 together, f1 is inlined up to 5 times increasing dramatically the code size.
