public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
@ 2011-11-30 18:54 zsojka at seznam dot cz
2011-12-05 14:16 ` [Bug tree-optimization/51362] [4.7 Regression] " rguenth at gcc dot gnu.org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: zsojka at seznam dot cz @ 2011-11-30 18:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Bug #: 51362
Summary: [4.7 Regression ICE: SIGFPE (division by zero) in
good_cloning_opportunity_p at ipa-cp.c:2401
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: zsojka@seznam.cz
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 25957
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25957
reduced testcase
Compiler output:
$ gcc -O -fipa-cp -fipa-cp-clone testcase.c
(gdb) r
Starting program:
/mnt/svn/gcc-trunk/binary-181788-lto-fortran-checking-yes-rtl-df/libexec/gcc/x86_64-unknown-linux-gnu/4.7.0/cc1
-quiet testcase.c -quiet -dumpbase testcase.c -mtune=generic -march=x86-64
-auxbase testcase -O -fipa-cp -fipa-cp-clone -o /tmp/ccinm5Ix.s
Program received signal SIGFPE, Arithmetic exception.
0x0000000001125ed1 in good_cloning_opportunity_p (time_benefit=Unhandled dwarf
expression opcode 0xf3
) at /mnt/svn/gcc-trunk/gcc/ipa-cp.c:1233
1233 int evaluation = (time_benefit * freq_sum) / size_cost;
(gdb) bt
#0 0x0000000001125ed1 in good_cloning_opportunity_p (time_benefit=Unhandled
dwarf expression opcode 0xf3
) at /mnt/svn/gcc-trunk/gcc/ipa-cp.c:1233
#1 0x000000000112b335 in decide_whether_version_node () at
/mnt/svn/gcc-trunk/gcc/ipa-cp.c:2252
#2 ipcp_decision_stage () at /mnt/svn/gcc-trunk/gcc/ipa-cp.c:2401
#3 ipcp_driver () at /mnt/svn/gcc-trunk/gcc/ipa-cp.c:2441
#4 0x00000000008fa7e5 in execute_one_pass (pass=0x17c2180) at
/mnt/svn/gcc-trunk/gcc/passes.c:2074
#5 0x00000000008fafaa in execute_ipa_pass_list (pass=0x17c2180) at
/mnt/svn/gcc-trunk/gcc/passes.c:2441
#6 0x00000000006b1a50 in ipa_passes () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:2076
#7 cgraph_optimize () at /mnt/svn/gcc-trunk/gcc/cgraphunit.c:2147
#8 0x00000000006b1e8a in cgraph_finalize_compilation_unit () at
/mnt/svn/gcc-trunk/gcc/cgraphunit.c:1327
#9 0x000000000058f970 in c_write_global_declarations () at
/mnt/svn/gcc-trunk/gcc/c-decl.c:10026
#10 0x00000000009efa94 in compile_file (argc=15, argv=0x7fffffffdad8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:581
#11 do_compile (argc=15, argv=0x7fffffffdad8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:1936
#12 toplev_main (argc=15, argv=0x7fffffffdad8) at
/mnt/svn/gcc-trunk/gcc/toplev.c:2012
#13 0x00007ffff6178d2d in __libc_start_main () from /lib64/libc.so.6
#14 0x00000000005731a9 in _start ()
Tested revisions:
r181788 - crash
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
@ 2011-12-05 14:16 ` rguenth at gcc dot gnu.org
2011-12-06 14:29 ` rguenth at gcc dot gnu.org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-12-05 14:16 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.7.0
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
2011-12-05 14:16 ` [Bug tree-optimization/51362] [4.7 Regression] " rguenth at gcc dot gnu.org
@ 2011-12-06 14:29 ` rguenth at gcc dot gnu.org
2011-12-07 8:27 ` jakub at gcc dot gnu.org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-12-06 14:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
2011-12-05 14:16 ` [Bug tree-optimization/51362] [4.7 Regression] " rguenth at gcc dot gnu.org
2011-12-06 14:29 ` rguenth at gcc dot gnu.org
@ 2011-12-07 8:27 ` jakub at gcc dot gnu.org
2011-12-07 8:28 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-12-07 8:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011-12-07
CC| |jakub at gcc dot gnu.org
Ever Confirmed|0 |1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-12-07 08:26:52 UTC ---
This isn't dup of PR50744, it ICEs even with the PR50744 patch. But with the
patch on the assert that size_cost is non-zero, rather than because of dividing
by zero.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
` (2 preceding siblings ...)
2011-12-07 8:27 ` jakub at gcc dot gnu.org
@ 2011-12-07 8:28 ` jakub at gcc dot gnu.org
2011-12-07 10:39 ` jamborm at gcc dot gnu.org
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-12-07 8:28 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |burnus at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-12-07 08:27:26 UTC ---
*** Bug 51439 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
` (3 preceding siblings ...)
2011-12-07 8:28 ` jakub at gcc dot gnu.org
@ 2011-12-07 10:39 ` jamborm at gcc dot gnu.org
2011-12-07 13:04 ` jamborm at gcc dot gnu.org
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jamborm at gcc dot gnu.org @ 2011-12-07 10:39 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jamborm at gcc dot gnu.org
|gnu.org |
--- Comment #3 from Martin Jambor <jamborm at gcc dot gnu.org> 2011-12-07 10:39:41 UTC ---
Mine.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
` (4 preceding siblings ...)
2011-12-07 10:39 ` jamborm at gcc dot gnu.org
@ 2011-12-07 13:04 ` jamborm at gcc dot gnu.org
2011-12-13 14:00 ` jamborm at gcc dot gnu.org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: jamborm at gcc dot gnu.org @ 2011-12-07 13:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu.org
--- Comment #4 from Martin Jambor <jamborm at gcc dot gnu.org> 2011-12-07 13:03:42 UTC ---
Well, it's estimate_ipcp_clone_size_and_time that returns zero
estimated size growth. I find that quite strange, I'd never expect
the function to return that, I'd expect a new function clone to
certainly take up some space. Honza, should I handle the zero size
value or is that the bug that should be addressed?
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
` (5 preceding siblings ...)
2011-12-07 13:04 ` jamborm at gcc dot gnu.org
@ 2011-12-13 14:00 ` jamborm at gcc dot gnu.org
2011-12-13 15:46 ` jamborm at gcc dot gnu.org
2011-12-13 15:58 ` jamborm at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: jamborm at gcc dot gnu.org @ 2011-12-13 14:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |http://gcc.gnu.org/ml/gcc-p
| |atches/2011-12/msg00987.htm
| |l
--- Comment #5 from Martin Jambor <jamborm at gcc dot gnu.org> 2011-12-13 13:39:36 UTC ---
Patch posted to mailing list:
http://gcc.gnu.org/ml/gcc-patches/2011-12/msg00987.html
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
` (6 preceding siblings ...)
2011-12-13 14:00 ` jamborm at gcc dot gnu.org
@ 2011-12-13 15:46 ` jamborm at gcc dot gnu.org
2011-12-13 15:58 ` jamborm at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: jamborm at gcc dot gnu.org @ 2011-12-13 15:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
--- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> 2011-12-13 15:43:39 UTC ---
Author: jamborm
Date: Tue Dec 13 15:43:36 2011
New Revision: 182288
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182288
Log:
2011-12-13 Martin Jambor <mjambor@suse.cz>
PR tree-optimization/51362
* ipa-cp.c (estimate_local_effects): When estimated size of a
specialized clone is zero, bump it to one.
* testsuite/gcc.dg/ipa/pr51362.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/ipa/pr51362.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/ipa-cp.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug tree-optimization/51362] [4.7 Regression] ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
` (7 preceding siblings ...)
2011-12-13 15:46 ` jamborm at gcc dot gnu.org
@ 2011-12-13 15:58 ` jamborm at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: jamborm at gcc dot gnu.org @ 2011-12-13 15:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51362
Martin Jambor <jamborm at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #7 from Martin Jambor <jamborm at gcc dot gnu.org> 2011-12-13 15:55:50 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2011-12-13 15:56 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-11-30 18:54 [Bug tree-optimization/51362] New: [4.7 Regression ICE: SIGFPE (division by zero) in good_cloning_opportunity_p at ipa-cp.c:2401 zsojka at seznam dot cz
2011-12-05 14:16 ` [Bug tree-optimization/51362] [4.7 Regression] " rguenth at gcc dot gnu.org
2011-12-06 14:29 ` rguenth at gcc dot gnu.org
2011-12-07 8:27 ` jakub at gcc dot gnu.org
2011-12-07 8:28 ` jakub at gcc dot gnu.org
2011-12-07 10:39 ` jamborm at gcc dot gnu.org
2011-12-07 13:04 ` jamborm at gcc dot gnu.org
2011-12-13 14:00 ` jamborm at gcc dot gnu.org
2011-12-13 15:46 ` jamborm at gcc dot gnu.org
2011-12-13 15:58 ` jamborm at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).