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[Bug libstdc++/80290] [6/7 Regression] g++ uses unreasonable amount of memory compiling nested string maps
- From: "redi at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 04 Apr 2017 09:36:45 +0000
- Subject: [Bug libstdc++/80290] [6/7 Regression] g++ uses unreasonable amount of memory compiling nested string maps
- Auto-submitted: auto-generated
- References: <bug-80290-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80290
--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Richard Biener from comment #1)
> Seems to be caused by libstdc++ changes given g++ 7 preprocessed source uses
> as much memory with g++ 5 as with 7 (even worse, at 12GB and still
> compiling...)
I doubt there's anything we can do to reduce it without losing standards
conformance in some way, but I'll take a look and what changed.