https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62016
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |compile-time-hog
Status|UNCONFIRMED |NEW
Last reconfirmed| |2014-08-05
Target Milestone|--- |4.8.4
Summary|very slow compilation at |[4.8/4.9/4.10 Regression]
|-O3 on x86_64-linux-gnu |very slow compilation at
| |-O3 on x86_64-linux-gnu
Ever confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed. 4.8 is slowest (very very slow), 4.9 is a lot better but still
100x slower than 4.7.
4.7:
TOTAL : 0.09 0.01 0.10
6621 kB
4.8:
<not finished after 6min 30s>
4.9:
ipa inlining heuristics : 2.99 (93%) usr 0.12 (92%) sys 3.11 (93%) wall
406507 kB (99%) ggc
4.10 (take with grain of salt - unoptimized and with checking):
ipa inlining heuristics : 6.81 (90%) usr 0.15 (94%) sys 6.95 (90%) wall
426678 kB (99%) ggc
