https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71508
Bug ID: 71508 Summary: Huge memory usage on compiling with many types Product: gcc Version: 6.1.1 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: olarupaulstelian97+bugzilla at gmail dot com Target Milestone: --- The code at https://github.com/wkaras/C-plus-plus-library-bit-fields/tree/b5e1b4b420f2676a9bef9ce630ef86995911ca9d causes G++ to use up more than 3GB of RAM (on my machine I could not determine exactly how much). The code creates a huge number of types, however there are other compilers that handle it more graciously (I have managed to compile the code with CLang++ and it only used 1.4 GB of RAM when I tried it) Why the older version? That's what my Arch Linux running kernel 4.6.2-1-ARCH x86_64 provides in its official repositories.