https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64928
--- Comment #4 from lucier at math dot purdue.edu --- On 02/03/2015 04:32 PM, pinskia at gcc dot gnu.org wrote: > > --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- > Note phase opt and generate is a toplevel time area. > The passes which take most of the time are: I'm also concerned about excessive memory usage; the largest passes (> 20 MB) are alias analysis : 0.21 ( 1%) usr 0.00 ( 0%) sys 0.19 ( 1%) wall 23934 kB ( 5%) ggc tree SSA incremental : 0.23 ( 1%) usr 0.01 ( 1%) sys 0.26 ( 1%) wall 27481 kB ( 5%) ggc dominator optimization : 0.22 ( 1%) usr 0.01 ( 1%) sys 0.22 ( 1%) wall 27417 kB ( 5%) ggc tree loop invariant motion: 0.16 ( 0%) usr 0.03 ( 4%) sys 0.19 ( 1%) wall 64219 kB (12%) ggc expand : 0.39 ( 1%) usr 0.02 ( 2%) sys 0.40 ( 1%) wall 87038 kB (17%) ggc CSE : 7.53 (21%) usr 0.01 ( 1%) sys 7.53 (20%) wall 30934 kB ( 6%) ggc integrated RA : 0.87 ( 2%) usr 0.00 ( 0%) sys 0.99 ( 3%) wall 48097 kB ( 9%) ggc LRA non-specific : 1.61 ( 4%) usr 0.01 ( 1%) sys 1.63 ( 4%) wall 37254 kB ( 7%) ggc This also affects the 4.8 branch and the mainline.
