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* [Bug lto/45375] New: Mozilla does not build with LTO
@ 2010-08-22 9:38 hubicka at gcc dot gnu dot org
2010-08-22 12:40 ` [Bug lto/45375] " hubicka at gcc dot gnu dot org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2010-08-22 9:38 UTC (permalink / raw)
To: gcc-bugs
Metabug to track all the issues ;)
--
Summary: Mozilla does not build with LTO
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: blocker
Priority: P3
Component: lto
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: hubicka at gcc dot gnu dot org
GCC target triplet: x86_64-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug lto/45375] Mozilla does not build with LTO
2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
@ 2010-08-22 12:40 ` hubicka at gcc dot gnu dot org
2010-08-22 12:43 ` hubicka at gcc dot gnu dot org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2010-08-22 12:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from hubicka at gcc dot gnu dot org 2010-08-22 12:39 -------
Quick summary :)
1) -g build is currently broken because of dwarf2out recursion.
2) sqlite still gets miscompiled at 32bit (PR44897), but works now at 64bit for
some reason
3) Workaround attached to PR44846 is needed to avoid ICE due to one decl C++ FE
issues
4) 32bit mozilla now builds fine for me when linked with -O2, but -Os (the
default) leads to segfault at startup apparently because xpcom components do
not reproduce correctly
5) Older versions of gold seems to have issues.
6) Martin's devirtualization seems to behave funny doing 7400 clones and the
redirecting just about 20 calls.
7) Both Martin and Taras reported ICE in lto-symtab I can't reproduce
8) Mozilla needs some changes, since __attribute__ ((used)) is missing. I will
attach diff.
9) One needs 4GB in /tmp, with sane partitioning this goes down to 1GB
10) 32bit build gets close to addressing space issues at WPA stage, probably we
should not mmap all the .o files, since only about 1GB goes to garbage
collected memory.
--
hubicka at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mjambor at suse dot cz
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2010-08-22 12:40:00
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug lto/45375] Mozilla does not build with LTO
2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
2010-08-22 12:40 ` [Bug lto/45375] " hubicka at gcc dot gnu dot org
@ 2010-08-22 12:43 ` hubicka at gcc dot gnu dot org
2010-08-22 12:48 ` hubicka at gcc dot gnu dot org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2010-08-22 12:43 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from hubicka at gcc dot gnu dot org 2010-08-22 12:43 -------
Created an attachment (id=21543)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21543&action=view)
Mozilla changes needed.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug lto/45375] Mozilla does not build with LTO
2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
2010-08-22 12:40 ` [Bug lto/45375] " hubicka at gcc dot gnu dot org
2010-08-22 12:43 ` hubicka at gcc dot gnu dot org
@ 2010-08-22 12:48 ` hubicka at gcc dot gnu dot org
2010-08-22 13:10 ` hubicka at gcc dot gnu dot org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2010-08-22 12:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from hubicka at gcc dot gnu dot org 2010-08-22 12:48 -------
mozconfig I use:
export CC="gcc -flto -fuse-linker-plugin"
export CXX="g++ -fwhopr=24 -fuse-linker-plugin -fpermissive"
#export CXX="/builds/slave/tryserver-linux/build/gcc/bin/g++ -fwhopr=16
#-fuse-linker-plugin -static-libstdc++ -fpermissive"
ac_add_options --enable-application=browser
ac_add_options --enable-libxul
#ac_add_options --enable-debug
ac_add_options --enable-optimize
ac_add_options --disable-tests
#ac_add_options --enable-debug-symbols
export LDFLAGS="-Wl,--no-keep-memory"
mk_add_options MOZ_MAKE_FLAGS=-j24
mk_add_options MOZ_OBJDIR=/build-mozilla-scratch-O1
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug lto/45375] Mozilla does not build with LTO
2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
` (2 preceding siblings ...)
2010-08-22 12:48 ` hubicka at gcc dot gnu dot org
@ 2010-08-22 13:10 ` hubicka at gcc dot gnu dot org
2010-08-25 10:55 ` [Bug lto/45375] [meta-bug] " pinskia at gcc dot gnu dot org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2010-08-22 13:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from hubicka at gcc dot gnu dot org 2010-08-22 13:10 -------
WPA stage profile after (with sane partitioning). Decl reading and merging is
major issue. I am surprised we are faster on streaming out than reading.
Execution times (seconds)
garbage collection : 5.71 ( 3%) usr 0.00 ( 0%) sys 5.72 ( 3%) wall
0 kB ( 0%) ggc
callgraph optimization: 1.70 ( 1%) usr 0.00 ( 0%) sys 1.72 ( 1%) wall
13488 kB ( 0%) ggc
varpool construction : 0.58 ( 0%) usr 0.01 ( 0%) sys 0.57 ( 0%) wall
43924 kB ( 1%) ggc
ipa cp : 1.62 ( 1%) usr 0.02 ( 0%) sys 1.66 ( 1%) wall
70914 kB ( 2%) ggc
ipa lto gimple in : 4.28 ( 2%) usr 0.33 ( 4%) sys 4.63 ( 2%) wall
15 kB ( 0%) ggc
ipa lto gimple out : 6.45 ( 3%) usr 0.33 ( 4%) sys 6.74 ( 3%) wall
0 kB ( 0%) ggc
ipa lto decl in : 48.34 (26%) usr 1.93 (23%) sys 50.30 (26%) wall
3021266 kB (87%) ggc
ipa lto decl out : 40.53 (22%) usr 0.19 ( 2%) sys 40.75 (21%) wall
0 kB ( 0%) ggc
ipa lto decl init I/O : 1.03 ( 1%) usr 0.06 ( 1%) sys 1.08 ( 1%) wall
77094 kB ( 2%) ggc
ipa lto cgraph I/O : 0.94 ( 1%) usr 0.21 ( 3%) sys 1.15 ( 1%) wall
237872 kB ( 7%) ggc
ipa lto decl merge : 45.14 (24%) usr 1.08 (13%) sys 46.23 (24%) wall
273 kB ( 0%) ggc
ipa lto cgraph merge : 0.89 ( 0%) usr 0.00 ( 0%) sys 0.89 ( 0%) wall
5164 kB ( 0%) ggc
whopr wpa : 2.38 ( 1%) usr 0.04 ( 0%) sys 2.41 ( 1%) wall
1 kB ( 0%) ggc
whopr wpa I/O : 3.08 ( 2%) usr 3.97 (48%) sys 7.38 ( 4%) wall
0 kB ( 0%) ggc
ipa reference : 1.55 ( 1%) usr 0.00 ( 0%) sys 1.59 ( 1%) wall
0 kB ( 0%) ggc
ipa profile : 0.19 ( 0%) usr 0.00 ( 0%) sys 0.18 ( 0%) wall
0 kB ( 0%) ggc
ipa pure const : 1.05 ( 1%) usr 0.00 ( 0%) sys 1.04 ( 1%) wall
0 kB ( 0%) ggc
parser : 0.58 ( 0%) usr 0.00 ( 0%) sys 0.58 ( 0%) wall
17738 kB ( 1%) ggc
inline heuristics : 15.73 ( 8%) usr 0.00 ( 0%) sys 15.74 ( 8%) wall
2974 kB ( 0%) ggc
callgraph verifier : 2.56 ( 1%) usr 0.02 ( 0%) sys 2.59 ( 1%) wall
0 kB ( 0%) ggc
varconst : 0.01 ( 0%) usr 0.02 ( 0%) sys 0.02 ( 0%) wall
0 kB ( 0%) ggc
TOTAL : 186.41 8.27 195.10
3491946 kB
--
hubicka at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn|44871 |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug lto/45375] [meta-bug] Mozilla does not build with LTO
2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
` (3 preceding siblings ...)
2010-08-22 13:10 ` hubicka at gcc dot gnu dot org
@ 2010-08-25 10:55 ` pinskia at gcc dot gnu dot org
2010-09-04 20:39 ` hubicka at gcc dot gnu dot org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2010-08-25 10:55 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|blocker |normal
Keywords| |meta-bug
Summary|Mozilla does not build with |[meta-bug] Mozilla does not
|LTO |build with LTO
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug lto/45375] [meta-bug] Mozilla does not build with LTO
2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
` (4 preceding siblings ...)
2010-08-25 10:55 ` [Bug lto/45375] [meta-bug] " pinskia at gcc dot gnu dot org
@ 2010-09-04 20:39 ` hubicka at gcc dot gnu dot org
2010-09-16 12:09 ` hubicka at gcc dot gnu dot org
2010-09-17 0:28 ` hubicka at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2010-09-04 20:39 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from hubicka at gcc dot gnu dot org 2010-09-04 20:39 -------
Oprofile of WHOPR build. It is quite suprrising how low the usual cpu hogs
shows..
113909 7.6329 lto1 lto1
htab_find_slot_with_hash
42787 2.8671 libc-2.11.1.so libc-2.11.1.so _int_malloc
36514 2.4468 lto1 lto1
iterative_hash_hashval_t
36289 2.4317 libelf.so.0.8.12 libelf.so.0.8.12
/usr/lib64/libelf.so.0.8.12
28366 1.9008 lto1 lto1 htab_expand
27648 1.8527 libc-2.11.1.so libc-2.11.1.so memset
27045 1.8123 lto1 lto1
cgraph_edge_badness
26670 1.7871 lto1 lto1
inflate_fast
25955 1.7392 lto1 lto1
lto_input_tree
20010 1.3408 lto1 lto1
lto_input_uleb128
18853 1.2633 lto1 lto1
bitmap_set_bit
16452 1.1024 as as /usr/bin/as
16215 1.0865 lto1 lto1
lto_input_1_unsigned
16141 1.0816 lto1 lto1
lto_output_1_stream
15244 1.0215 libc-2.11.1.so libc-2.11.1.so memcpy
15241 1.0213 lto1 lto1
htab_hash_string
13806 0.9251 lto1 lto1
record_reg_classes.constprop.10
13743 0.9209 lto1 lto1
lto_output_tree
13220 0.8859 lto1 lto1
ggc_internal_alloc_stat
12879 0.8630 libc-2.11.1.so libc-2.11.1.so
malloc_consolidate
12847 0.8609 libc-2.11.1.so libc-2.11.1.so _int_free
11712 0.7848 lto1 lto1
lto_streamer_cache_insert_1
11593 0.7768 lto1 lto1
linemap_lookup
11100 0.7438 lto1 lto1
ht_lookup_with_hash
10837 0.7262 lto1 lto1 gtc_visit
10460 0.7009 lto1 lto1
cgraph_estimate_growth
10438 0.6994 lto1 lto1
value_member
9812 0.6575 lto1 lto1 walk_tree_1
9316 0.6243 oprofiled oprofiled
/usr/bin/oprofiled
8979 0.6017 libc-2.11.1.so libc-2.11.1.so malloc
8825 0.5914 libc-2.11.1.so libc-2.11.1.so free
8625 0.5780 lto1 lto1
pointer_set_insert
8304 0.5564 lto1 lto1
ggc_set_mark
8276 0.5546 lto1 lto1
type_pair_eq
8089 0.5420 lto1 lto1
gimple_types_compatible_p_1
7981 0.5348 lto1 lto1
lto_output_uleb128_stream
7388 0.4951 lto1 lto1
df_note_compute
7349 0.4924 lto1 lto1
operand_equal_p
7349 0.4924 lto1 lto1
pointer_map_contains
7117 0.4769 lto1 lto1
bitmap_bit_p
7067 0.4736 lto1 lto1 pool_alloc
7030 0.4711 lto1 lto1
verify_cgraph_node
6954 0.4660 lto1 lto1
lto_input_sleb128
6947 0.4655 lto1 lto1
gt_ggc_mx_lang_tree_node
6747 0.4521 libc-2.11.1.so libc-2.11.1.so calloc
6403 0.4291 lto1 lto1 htab_delete
6360 0.4262 lto1 lto1
constrain_operands.part.12
6198 0.4153 lto1 lto1
bitmap_clear_bit
6103 0.4090 lto1 lto1 cse_insn
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug lto/45375] [meta-bug] Mozilla does not build with LTO
2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
` (5 preceding siblings ...)
2010-09-04 20:39 ` hubicka at gcc dot gnu dot org
@ 2010-09-16 12:09 ` hubicka at gcc dot gnu dot org
2010-09-17 0:28 ` hubicka at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2010-09-16 12:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from hubicka at gcc dot gnu dot org 2010-09-16 12:09 -------
PR 45679 also reproduce during -O3 build. I am testing patch for it now.
--
hubicka at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |45679
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug lto/45375] [meta-bug] Mozilla does not build with LTO
2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
` (6 preceding siblings ...)
2010-09-16 12:09 ` hubicka at gcc dot gnu dot org
@ 2010-09-17 0:28 ` hubicka at gcc dot gnu dot org
7 siblings, 0 replies; 9+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2010-09-17 0:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from hubicka at gcc dot gnu dot org 2010-09-17 00:28 -------
Gold shipped with SLES:
GNU gold (GNU Binutils; SUSE Linux Enterprise 11 2.20.0.20100122-0.7.9) 1.
is known to have problems leading to PR45194
The following version: GNU gold (GNU Binutils 2.20.51.20100706) 1.9
works for me.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45375
^ permalink raw reply [flat|nested] 9+ messages in thread
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2010-08-22 9:38 [Bug lto/45375] New: Mozilla does not build with LTO hubicka at gcc dot gnu dot org
2010-08-22 12:40 ` [Bug lto/45375] " hubicka at gcc dot gnu dot org
2010-08-22 12:43 ` hubicka at gcc dot gnu dot org
2010-08-22 12:48 ` hubicka at gcc dot gnu dot org
2010-08-22 13:10 ` hubicka at gcc dot gnu dot org
2010-08-25 10:55 ` [Bug lto/45375] [meta-bug] " pinskia at gcc dot gnu dot org
2010-09-04 20:39 ` hubicka at gcc dot gnu dot org
2010-09-16 12:09 ` hubicka at gcc dot gnu dot org
2010-09-17 0:28 ` hubicka at gcc dot gnu dot org
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