------- Comment #25 from hubicka at ucw dot cz 2010-04-03 21:19 -------
Subject: Re: [4.5 regression] 0.5% code size
regression caused by r147852
> But the the code as-is allows unlimited growth of a function (well,
> by PARAM_LARGE_FUNCTION_GROWTH for each inlining; the limit is
> basically PARAM_LARGE_FUNCTION_INSNS * (1 +
> PARAM_LARGE_FUNCTION_GROWTH/100) ^ n with n being the number of
Size after inlining decide whether we want to apply PARAM_LARGE_FUNCTION_GROWTH
or not. When we decide so (based on overall function size), the limit is
computed based on size without inlining.
So PARAM_LARGE_FUNCTION_INSNS only adds a buffer for small functions, but
should
not interfere with the growth limits once function gets bigger than that.
(at least it is intended to work this way, I will double check the
implementation after returning)
Honza
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40436
