https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81443
--- Comment #8 from Eric Botcazou <ebotcazou at gcc dot gnu.org> --- > FWIW, reversing PR59461 (some manual edits required) on gcc-7_1_0-release > compiles cleanly, which is the first time that's happened on this machine > under N32. Successful builds on this machine take about 8 hours. Fail > builds....~3-4 hours. It's during stage2-bubble when compiling genrecog.c > will bail out, claiming no more virtual memory (2GB RAM + 3GB of swap). Can you invoke the problematic command manually and add -save-temps to it? This will give you a .i file, then gzip it and attach it to the PR.