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[Bug middle-end/38474] compile time explosion in dataflow_set_preserve_mem_locs at -O3
- From: "rguenth at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Fri, 06 Dec 2013 13:43:34 +0000
- Subject: [Bug middle-end/38474] compile time explosion in dataflow_set_preserve_mem_locs at -O3
- Auto-submitted: auto-generated
- References: <bug-38474-4 at http dot gcc dot gnu dot org/bugzilla/>
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.