http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59992
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> --- Bumping to --param max-gcse-memory=400 * 1024 * 1024 "fixes" that and we get (as expected from non-RTL checking -ftime-report) CPROP : 4.82 ( 3%) usr 0.57 ( 8%) sys 5.61 ( 3%) wall 112174 kB ( 4%) ggc PRE : 26.88 (16%) usr 0.78 (10%) sys 27.69 (16%) wall 4241 kB ( 0%) ggc TOTAL : 169.50 7.48 177.36 3130446 kB