[Bug ipa/60243] IPA is slow on large cgraph tree

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60243

--- Comment #17 from Richard Biener <rguenth at gcc dot gnu.org> ---
So, add a comment in the asm to make the testcase test the same as originally
for this PR (seems to peak at ~2GB then).

Execution times (seconds)
 phase setup             :   0.00 ( 0%) usr   0.00 ( 0%) sys   0.01 ( 0%) wall 
  1182 kB ( 0%) ggc
 phase parsing           :   6.53 ( 3%) usr   7.40 (73%) sys  13.93 ( 6%) wall 
611643 kB (19%) ggc
 phase opt and generate  : 202.70 (97%) usr   2.70 (27%) sys 205.41 (94%) wall
2569108 kB (81%) ggc
 ipa profile             :  14.77 ( 7%) usr   0.00 ( 0%) sys  14.77 ( 7%) wall 
     0 kB ( 0%) ggc
 ipa SRA                 : 127.88 (61%) usr   0.89 ( 9%) sys 129.17 (59%) wall 
619431 kB (19%) ggc
 early inlining heuristics:   3.74 ( 2%) usr   0.00 ( 0%) sys   3.64 ( 2%) wall
   1928 kB ( 0%) ggc
 tree CFG construction   :   8.73 ( 4%) usr   0.05 ( 0%) sys   8.77 ( 4%) wall 
651524 kB (20%) ggc
 tree operand scan       :  10.61 ( 5%) usr   0.33 ( 3%) sys  10.77 ( 5%) wall 
 95009 kB ( 3%) ggc
 scheduling 2            :   3.69 ( 2%) usr   0.02 ( 0%) sys   3.80 ( 2%) wall 
   502 kB ( 0%) ggc
 TOTAL                 : 209.23            10.10           219.35           
3181942 kB