[Bug c++/124480] [16 regression] g++.dg/modules/pr99023_b.X FAILs

[nshead at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124480

Nathaniel Shead <nshead at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |nshead at gcc dot gnu.org

--- Comment #1 from Nathaniel Shead <nshead at gcc dot gnu.org> ---
I've not been able to reproduce the memory consumption issues on
x86_64-pc-linux-gnu (albeit a 64-bit compiler) configured with
--enable-gather-detailed-mem-stats.  Result of '-fmem-report' notes a total
memory allocation of 76M for the process which is still well shy of 32-bit
address space usage.  Notably this includes only two 2MB allocations (both for
the allocation of 'ord_loc_remap' in module_state::write_prepare_maps).

This testcase passes '--param ggc-min-expand=0'.  Also passing '--param
ggc-min-heapsize=0' doesn't seem to change this much at all, while instead
removingthis flag drops total memory allocation to 69M.

I'll have see if I can try with a 32-bit compiler at some point and find if
there are differences there.