inline-unit-growth trouble

[Andrew Pinski]

> 
> On 4/15/05, Andreas Krebbel <krebbel1@de.ibm.com> wrote:
> > Hi,
> > 
> > on S/390 we have currently a plenty of testsuite failures
> > due to inlining effects.
> > 
> > ld complains about testcases which try to link two files containing the same function
> > in .gnu.linkonce sections but with different code sizes. The sizes differ due
> > to different inlining decisions. The problem is that inlining maybe
> > prevented by global limits which maybe exceeded for one file but not for
> > the other.
> > The actual problem occurred with the "inline-unit-growth" limit which
> > may prevent inlining for a function in one file and allow it for the same
> > function in another.
> > 
> > I'm not sure how to fix that issue. To my mind the whole concept of per unit
> > limits influencing local inlining decisions seems a bit questionable.
> 
> Why does the linker not just pick either of the functions?  The size
> difference should not matter.

The linker warns about them being different sizes.  Oh well.  Someone
would need to look into how to fix this.

-- Pinski