[Bug tree-optimization/39203] LTO and -fwhole-program do not play along well

[hubicka at ucw dot cz]

------- Comment #8 from hubicka at ucw dot cz  2009-02-17 18:34 -------
Subject: Re:  LTO and -fwhole-program do not play along well

> > -fwhole-program essentially hides everything except for main and
> > functions/variables explicitly marked via attribute, so this is
> > exepcted.  You need to use --combine and or -lto to compile programs
> > consisting of multiple compilation units with -fwhole-program.
> 
> Yes.  As I just replied upthread, I think we could just turn off
> flag_whole_program when we know we are just generating IL out of the
> front ends.

Essentially yes, but since we are restarting the pass queue from later
time, won't we miss the visibility pass at linktime?
This is why I think we need two passes (one very early and one scheduled
after LTO read)

Honza
> 
> 
> Diego.
> 
> 
> -- 
> 
> 
> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39203
> 
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39203