http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38474
--- Comment #75 from Richard Biener <rguenth at gcc dot gnu.org> --- On trunk with the reduced testcase and -O2 (no -g): ipa inlining heuristics : 9.85 ( 5%) usr 0.00 ( 0%) sys 9.93 ( 5%) wall 1448 kB ( 0%) ggc tree PTA : 161.26 (78%) usr 0.30 (45%) sys 162.00 (78%) wall 42484 kB ( 8%) ggc expand vars : 3.06 ( 1%) usr 0.01 ( 2%) sys 3.06 ( 1%) wall 16074 kB ( 3%) ggc integrated RA : 4.46 ( 2%) usr 0.11 (17%) sys 4.56 ( 2%) wall 87144 kB (17%) ggc TOTAL : 205.49 0.66 206.80 513245 kB -O3 is in the same ballpark. I'll look at this again.
