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[Bug rtl-optimization/42175] Slow compile and much memory use at -O1
- 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: Wed, 15 Jan 2014 15:21:57 +0000
- Subject: [Bug rtl-optimization/42175] Slow compile and much memory use at -O1
- Auto-submitted: auto-generated
- References: <bug-42175-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42175
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Known to work| |4.9.0
Resolution|--- |FIXED
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
GCC 4.9 will use about 800MB at -O1 and
combiner : 2.92 ( 4%) usr 0.02 ( 1%) sys 2.77 ( 4%) wall
56720 kB ( 4%) ggc
integrated RA : 4.87 ( 7%) usr 0.06 ( 3%) sys 4.87 ( 7%) wall
138947 kB ( 9%) ggc
LRA non-specific : 2.45 ( 4%) usr 0.03 ( 1%) sys 2.49 ( 4%) wall
22036 kB ( 1%) ggc
TOTAL : 66.46
at -O2 memory usage stays the same but
df reaching defs : 7.16 ( 7%) usr 0.01 ( 0%) sys 6.93 ( 7%) wall
0 kB ( 0%) ggc
df live regs : 6.87 ( 7%) usr 0.04 ( 1%) sys 6.86 ( 7%) wall
0 kB ( 0%) ggc
df live&initialized regs: 4.05 ( 4%) usr 0.00 ( 0%) sys 4.19 ( 4%) wall
0 kB ( 0%) ggc
combiner : 3.17 ( 3%) usr 0.04 ( 1%) sys 3.10 ( 3%) wall
61821 kB ( 3%) ggc
integrated RA : 5.77 ( 6%) usr 0.06 ( 2%) sys 5.95 ( 6%) wall
139550 kB ( 7%) ggc
LRA non-specific : 2.49 ( 3%) usr 0.02 ( 1%) sys 2.48 ( 2%) wall
21955 kB ( 1%) ggc
TOTAL : 97.65 2.67 100.30
1881806 kB
I'd say FIXED. Yay.