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From: "doko at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug other/67893] New: [5 Regression] memory hog building a C++ file (on x86_64-linux-gnu)
Date: Thu, 08 Oct 2015 10:22:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67893

            Bug ID: 67893
           Summary: [5 Regression] memory hog building a C++ file (on
                    x86_64-linux-gnu)
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org
  Target Milestone: ---

Created attachment 36462
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=36462&action=edit
preprocessed source

this is one file from the insighttoolkit software, a swig generated source
file.

built with -g -O2 -fstack-protector-strong -fPIC -fno-strict-aliasing
trunk needs -fpermissive in addition.

memory usage with the 4.9 branch peaks at 2.5G, with the 5 branch at 3.3G, with
trunk at 2.3G.