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Re: Speculative call support in the callgraph


On Sat, Aug 10, 2013 at 01:15:11AM +0200, Jan Hubicka wrote:
> > Jan Hubicka <hubicka@ucw.cz> writes:
> > 
> > > Hi,
> > > this patch adds support for speculative calls into callgraph.  The idea is that
> > > any IPA optimization that believes it knows likely target of an indirect call
> > > (currently I use it for cross-module indirect call profiling, but I expect
> > > Martin J. can easily add support for ipa-cp and I hope to add speculative
> > > devirtualization in foreseeable future since it should make difference for
> > > Firefox). Speculative call replaces indirect call
> > 
> > Patch appears to break boot strap on x86_64-linux 
> > (or maybe your other one)
> 
> How do you bootstrap? This should not be used w/o lto+profiledbootstrap and
> that seems to work for me...

Neither LTO nor profiled

../gcc/configure --prefix=/pkg/gcc-$V-$D --enable-lto \
--with-plugin-ld=/usr/local/bin/ld-plugin  \
--disable-nls --enable-languages=$FRONTEND > /dev/null \
--enable-checking=release --disable-libstdcxx-pch  \
--disable-fixincl 

-Andi


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