Re: [PR 79108] Put ipa_node_params to GC memory

[Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>]

Hi Martin,

> when I fixed PR 78365 by streaming types of parameters that might not
> have been anywhere else, I forgot that I was holding them in non-GC
> memory and so I caused PR 79108.  The following patch fixes it by
> putting ipa_param_descriptor and ipa_node_params structures into GC
> memory, together with summary holding class ipa_node_params_t which is
> now a GC root.  In the process, I have turned the destructor of the
> latter into a remove and insert hooks of the summary holder.
>
> Bootstrapped and tested on x86_64-linux, also LTO-bootstrapped and
> tested, although with only C,C++ and Fortran and with sanitizers and
> multilib disabled.  (It is now a part of an undergoing  LTO bootstrap
> with everything).  OK for trunk?

this broke bootstrap on i386-pc-solaris2.12, sparc-sun-solaris2.12, and
i686-pc-linux-gnu (probably every 32-bit host), as confirmed by an
i386-pc-solaris2.10 reghunt.

E.g. in the Linux/i686 bootstrap, compiling tree-ssa-math-opts.o fails
with

virtual memory exhausted: Cannot allocate memory

In the Solaris cases, various libstdc++ source files fail to compile in
the same way.

	Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University