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From: "dcb314 at hotmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/105747] Possible resource hog with -O2 -fno-var-tracking
Date: Fri, 27 May 2022 09:22:53 +0000 [thread overview]
Message-ID: <bug-105747-4-TKb92sk81K@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-105747-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105747
--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Andrew Pinski from comment #1)
> Can you give the output of gcc -v?
Sure.
dcb@raspberrypi:~/csmith $ /home/dcb/gcc/results/bin/gcc -v
Using built-in specs.
COLLECT_GCC=/home/dcb/gcc/results/bin/gcc
COLLECT_LTO_WRAPPER=/home/dcb/gcc/results.20220525/libexec/gcc/arm-linux-gnueabihf/13.0.0/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: ../trunk/configure --prefix=/home/dcb/gcc/results.20220525
--disable-bootstrap --disable-multilib --disable-werror
--with-pkgversion=850a9ce8bcca59c7 --enable-checking=yes
--enable-languages=c,c++ --with-cpu=cortex-a72 --with-fpu=neon-fp-armv8
--with-float=hard --build=arm-linux-gnueabihf --host=arm-linux-gnueabihf
--target=arm-linux-gnueabihf
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 13.0.0 20220525 (experimental) (850a9ce8bcca59c7)
dcb@raspberrypi:~/csmith $
> Also maybe add -ftime-report and give that output too
dcb@raspberrypi:~/csmith $ (ulimit -t 600; time /home/dcb/gcc/results/bin/gcc
-c -w -O2 -fno-var-tracking -ftime-report bug814.c )
Time variable usr sys wall
GGC
phase setup : 0.05 ( 0%) 0.01 ( 0%) 0.10 ( 0%)
2166k ( 2%)
phase parsing : 0.92 ( 0%) 1.68 ( 50%) 2.64 ( 1%)
3162k ( 3%)
phase opt and generate : 413.81 (100%) 1.65 ( 49%) 416.39 ( 99%)
108M ( 95%)
phase last asm : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
2432 ( 0%)
garbage collection : 0.95 ( 0%) 0.03 ( 1%) 0.99 ( 0%)
0 ( 0%)
dump files : 0.02 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
0 ( 0%)
callgraph construction : 0.17 ( 0%) 0.03 ( 1%) 0.21 ( 0%)
1731k ( 1%)
callgraph optimization : 0.11 ( 0%) 0.01 ( 0%) 0.11 ( 0%)
2360 ( 0%)
callgraph functions expansion : 379.05 ( 91%) 1.00 ( 30%) 380.77 ( 91%)
102M ( 90%)
callgraph ipa passes : 34.08 ( 8%) 0.64 ( 19%) 34.92 ( 8%)
3324k ( 3%)
ipa function summary : 0.03 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
30k ( 0%)
ipa dead code removal : 0.02 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
ipa cp : 0.07 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
98k ( 0%)
ipa inlining heuristics : 0.04 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
105k ( 0%)
ipa function splitting : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
36k ( 0%)
ipa pure const : 0.05 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
1800 ( 0%)
ipa icf : 0.04 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
0 ( 0%)
ipa free inline summary : 0.02 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
ipa modref : 0.01 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
11k ( 0%)
cfg construction : 0.00 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
9952 ( 0%)
cfg cleanup : 0.06 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
13k ( 0%)
CFG verifier : 0.95 ( 0%) 0.00 ( 0%) 1.08 ( 0%)
0 ( 0%)
trivially dead code : 0.18 ( 0%) 0.00 ( 0%) 0.20 ( 0%)
0 ( 0%)
df scan insns : 0.10 ( 0%) 0.00 ( 0%) 0.11 ( 0%)
672 ( 0%)
df reaching defs : 0.05 ( 0%) 0.00 ( 0%) 0.10 ( 0%)
0 ( 0%)
df live regs : 0.83 ( 0%) 0.01 ( 0%) 0.91 ( 0%)
0 ( 0%)
df live&initialized regs : 0.14 ( 0%) 0.01 ( 0%) 0.16 ( 0%)
0 ( 0%)
df use-def / def-use chains : 0.04 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
df live reg subwords : 0.02 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
df reg dead/unused notes : 0.36 ( 0%) 0.00 ( 0%) 0.33 ( 0%)
505k ( 0%)
register information : 0.15 ( 0%) 0.00 ( 0%) 0.19 ( 0%)
0 ( 0%)
alias analysis : 0.30 ( 0%) 0.01 ( 0%) 0.37 ( 0%)
2877k ( 2%)
alias stmt walking : 68.16 ( 16%) 0.46 ( 14%) 69.10 ( 16%)
114k ( 0%)
register scan : 0.07 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
31k ( 0%)
rebuild jump labels : 0.05 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
0 ( 0%)
preprocessing : 0.20 ( 0%) 0.33 ( 10%) 0.57 ( 0%)
240k ( 0%)
lexical analysis : 0.36 ( 0%) 0.62 ( 19%) 0.90 ( 0%)
0 ( 0%)
parser (global) : 0.03 ( 0%) 0.18 ( 5%) 0.24 ( 0%)
784k ( 1%)
parser function body : 0.32 ( 0%) 0.53 ( 16%) 0.92 ( 0%)
2059k ( 2%)
parser inl. func. body : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
46k ( 0%)
early inlining heuristics : 0.02 ( 0%) 0.01 ( 0%) 0.01 ( 0%)
141k ( 0%)
inline parameters : 0.12 ( 0%) 0.01 ( 0%) 0.04 ( 0%)
77k ( 0%)
integration : 0.07 ( 0%) 0.02 ( 1%) 0.07 ( 0%)
629k ( 1%)
tree gimplify : 0.20 ( 0%) 0.00 ( 0%) 0.21 ( 0%)
2735k ( 2%)
tree CFG construction : 0.01 ( 0%) 0.01 ( 0%) 0.01 ( 0%)
182k ( 0%)
tree CFG cleanup : 0.14 ( 0%) 0.00 ( 0%) 0.10 ( 0%)
75k ( 0%)
tree VRP : 0.13 ( 0%) 0.00 ( 0%) 0.13 ( 0%)
94k ( 0%)
tree Early VRP : 0.17 ( 0%) 0.00 ( 0%) 0.20 ( 0%)
154k ( 0%)
tree copy propagation : 0.03 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
152 ( 0%)
tree PTA : 0.20 ( 0%) 0.01 ( 0%) 0.19 ( 0%)
56k ( 0%)
tree SSA rewrite : 0.04 ( 0%) 0.06 ( 2%) 0.09 ( 0%)
557k ( 0%)
tree SSA incremental : 0.14 ( 0%) 0.01 ( 0%) 0.21 ( 0%)
343k ( 0%)
tree operand scan : 0.15 ( 0%) 0.11 ( 3%) 0.25 ( 0%)
666k ( 1%)
dominator optimization : 0.21 ( 0%) 0.00 ( 0%) 0.20 ( 0%)
778k ( 1%)
backwards jump threading : 0.11 ( 0%) 0.02 ( 1%) 0.12 ( 0%)
165k ( 0%)
tree SRA : 0.09 ( 0%) 0.00 ( 0%) 0.06 ( 0%)
30k ( 0%)
tree CCP : 0.17 ( 0%) 0.00 ( 0%) 0.20 ( 0%)
60k ( 0%)
tree reassociation : 0.02 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
320 ( 0%)
tree PRE : 0.80 ( 0%) 0.01 ( 0%) 0.84 ( 0%)
742k ( 1%)
tree FRE : 2.00 ( 0%) 0.02 ( 1%) 1.77 ( 0%)
1294k ( 1%)
tree code sinking : 0.11 ( 0%) 0.00 ( 0%) 0.08 ( 0%)
11k ( 0%)
tree linearize phis : 0.07 ( 0%) 0.01 ( 0%) 0.07 ( 0%)
5848 ( 0%)
tree backward propagate : 0.00 ( 0%) 0.01 ( 0%) 0.00 ( 0%)
0 ( 0%)
tree forward propagate : 0.11 ( 0%) 0.00 ( 0%) 0.10 ( 0%)
33k ( 0%)
tree phiprop : 0.02 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
tree conservative DCE : 0.07 ( 0%) 0.02 ( 1%) 0.07 ( 0%)
128 ( 0%)
tree aggressive DCE : 0.04 ( 0%) 0.02 ( 1%) 0.04 ( 0%)
65k ( 0%)
tree DSE : 42.71 ( 10%) 0.00 ( 0%) 42.76 ( 10%)
11k ( 0%)
tree loop optimization : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
tree loop invariant motion : 0.02 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
17k ( 0%)
tree canonical iv : 0.02 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
13k ( 0%)
scev constant prop : 0.00 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
9456 ( 0%)
complete unrolling : 0.08 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
71k ( 0%)
tree vectorization : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
25k ( 0%)
tree slp vectorization : 0.24 ( 0%) 0.00 ( 0%) 0.22 ( 0%)
1519k ( 1%)
tree loop distribution : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
6288 ( 0%)
tree iv optimization : 0.08 ( 0%) 0.00 ( 0%) 0.09 ( 0%)
223k ( 0%)
predictive commoning : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
14k ( 0%)
tree copy headers : 0.03 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
36k ( 0%)
tree SSA verifier : 2.27 ( 1%) 0.07 ( 2%) 2.18 ( 1%)
0 ( 0%)
tree STMT verifier : 4.90 ( 1%) 0.12 ( 4%) 5.14 ( 1%)
0 ( 0%)
tree switch lowering : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
tree strlen optimization : 0.63 ( 0%) 0.00 ( 0%) 0.63 ( 0%)
19k ( 0%)
tree modref : 0.03 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
18k ( 0%)
callgraph verifier : 0.03 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
0 ( 0%)
dominance computation : 0.14 ( 0%) 0.00 ( 0%) 0.24 ( 0%)
0 ( 0%)
out of ssa : 0.01 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
776 ( 0%)
expand vars : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
103k ( 0%)
expand : 0.37 ( 0%) 0.00 ( 0%) 0.37 ( 0%)
4487k ( 4%)
post expand cleanups : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
21k ( 0%)
varconst : 0.00 ( 0%) 0.02 ( 1%) 0.00 ( 0%)
9000 ( 0%)
lower subreg : 0.09 ( 0%) 0.00 ( 0%) 0.08 ( 0%)
46k ( 0%)
jump : 0.01 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
forward prop : 0.35 ( 0%) 0.00 ( 0%) 0.34 ( 0%)
237k ( 0%)
CSE : 8.07 ( 2%) 0.00 ( 0%) 8.09 ( 2%)
2159k ( 2%)
dead code elimination : 0.11 ( 0%) 0.00 ( 0%) 0.11 ( 0%)
0 ( 0%)
dead store elim1 : 1.24 ( 0%) 0.00 ( 0%) 1.23 ( 0%)
797k ( 1%)
dead store elim2 : 10.56 ( 3%) 0.07 ( 2%) 10.68 ( 3%)
36M ( 32%)
loop init : 0.10 ( 0%) 0.02 ( 1%) 0.16 ( 0%)
443k ( 0%)
loop invariant motion : 0.02 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
7800 ( 0%)
loop doloop : 0.07 ( 0%) 0.00 ( 0%) 0.07 ( 0%)
5488 ( 0%)
CPROP : 0.52 ( 0%) 0.00 ( 0%) 0.46 ( 0%)
330k ( 0%)
PRE : 12.48 ( 3%) 0.13 ( 4%) 12.63 ( 3%)
37M ( 33%)
auto inc dec : 0.04 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
3336 ( 0%)
CSE 2 : 6.13 ( 1%) 0.01 ( 0%) 6.13 ( 1%)
798k ( 1%)
branch prediction : 0.03 ( 0%) 0.02 ( 1%) 0.02 ( 0%)
17k ( 0%)
combiner : 0.56 ( 0%) 0.00 ( 0%) 0.59 ( 0%)
879k ( 1%)
scheduling : 210.15 ( 51%) 0.08 ( 2%) 210.56 ( 50%)
1351k ( 1%)
integrated RA : 4.34 ( 1%) 0.00 ( 0%) 4.27 ( 1%)
4165k ( 4%)
LRA non-specific : 0.77 ( 0%) 0.01 ( 0%) 0.77 ( 0%)
757k ( 1%)
LRA virtuals elimination : 0.13 ( 0%) 0.00 ( 0%) 0.13 ( 0%)
85k ( 0%)
LRA reload inheritance : 0.19 ( 0%) 0.00 ( 0%) 0.21 ( 0%)
419k ( 0%)
LRA create live ranges : 0.33 ( 0%) 0.00 ( 0%) 0.32 ( 0%)
141k ( 0%)
LRA hard reg assignment : 7.85 ( 2%) 0.02 ( 1%) 7.93 ( 2%)
0 ( 0%)
LRA coalesce pseudo regs : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
LRA rematerialization : 0.08 ( 0%) 0.00 ( 0%) 0.08 ( 0%)
72 ( 0%)
reload CSE regs : 14.01 ( 3%) 0.00 ( 0%) 14.02 ( 3%)
413k ( 0%)
thread pro- & epilogue : 0.11 ( 0%) 0.00 ( 0%) 0.12 ( 0%)
22k ( 0%)
if-conversion 2 : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
800 ( 0%)
peephole 2 : 0.03 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
912 ( 0%)
scheduling fusion : 0.90 ( 0%) 0.01 ( 0%) 0.91 ( 0%)
103k ( 0%)
hard reg cprop : 0.16 ( 0%) 0.00 ( 0%) 0.15 ( 0%)
408 ( 0%)
scheduling 2 : 1.13 ( 0%) 0.01 ( 0%) 1.16 ( 0%)
154k ( 0%)
machine dep reorg : 0.06 ( 0%) 0.00 ( 0%) 0.05 ( 0%)
9976 ( 0%)
reorder blocks : 0.05 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
21k ( 0%)
shorten branches : 0.04 ( 0%) 0.00 ( 0%) 0.04 ( 0%)
2304 ( 0%)
final : 0.10 ( 0%) 0.03 ( 1%) 0.13 ( 0%)
3064 ( 0%)
tree if-combine : 0.00 ( 0%) 0.00 ( 0%) 0.02 ( 0%)
192 ( 0%)
straight-line strength reduction : 0.02 ( 0%) 0.00 ( 0%) 0.03 ( 0%)
648 ( 0%)
store merging : 0.37 ( 0%) 0.01 ( 0%) 0.39 ( 0%)
320k ( 0%)
initialize rtl : 0.01 ( 0%) 0.01 ( 0%) 0.01 ( 0%)
4984 ( 0%)
tree loop if-conversion : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
29k ( 0%)
access analysis : 0.03 ( 0%) 0.01 ( 0%) 0.03 ( 0%)
96 ( 0%)
early local passes : 0.00 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
0 ( 0%)
rest of compilation : 0.22 ( 0%) 0.02 ( 1%) 0.33 ( 0%)
527k ( 0%)
remove unused locals : 0.07 ( 0%) 0.01 ( 0%) 0.08 ( 0%)
0 ( 0%)
address taken : 0.05 ( 0%) 0.07 ( 2%) 0.17 ( 0%)
0 ( 0%)
verify loop closed : 0.01 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
verify RTL sharing : 2.36 ( 1%) 0.01 ( 0%) 2.34 ( 1%)
0 ( 0%)
rebuild frequencies : 0.01 ( 0%) 0.00 ( 0%) 0.00 ( 0%)
0 ( 0%)
repair loop structures : 0.01 ( 0%) 0.00 ( 0%) 0.01 ( 0%)
216 ( 0%)
TOTAL : 414.79 3.34 419.14
113M
Extra diagnostic checks enabled; compiler may run slowly.
Configure with --enable-checking=release to disable checks.
next prev parent reply other threads:[~2022-05-27 9:22 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-27 8:49 [Bug c/105747] New: " dcb314 at hotmail dot com
2022-05-27 9:14 ` [Bug middle-end/105747] " pinskia at gcc dot gnu.org
2022-05-27 9:22 ` dcb314 at hotmail dot com [this message]
2022-05-27 9:31 ` [Bug rtl-optimization/105747] Scheduler can take a long time on arm-linux sometimes pinskia at gcc dot gnu.org
2022-05-27 11:14 ` rguenth at gcc dot gnu.org
2022-06-07 8:28 ` dcb314 at hotmail dot com
2022-06-07 9:30 ` dcb314 at hotmail dot com
2022-06-11 9:45 ` dcb314 at hotmail dot com
2022-06-11 9:48 ` dcb314 at hotmail dot com
2022-06-12 9:40 ` dcb314 at hotmail dot com
2024-02-19 13:29 ` rguenth at gcc dot gnu.org
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