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* [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1
@ 2008-02-17 8:23 vapier at gentoo dot org
2008-02-17 8:24 ` [Bug c/35227] " vapier at gentoo dot org
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: vapier at gentoo dot org @ 2008-02-17 8:23 UTC (permalink / raw)
To: gcc-bugs
on an x86_64/x86 system, a simple mandel code base crashes gcc-4.1.2 and newer:
$ gcc -c mandel.i -O1
mandel.i: In function 'mandel':
mandel.i:5: warning: incompatible implicit declaration of built-in function
'cabs'
mandel.i:2: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://bugs.gentoo.org/> for instructions.
Preprocessed source stored into /tmp/cc4gdEy7.out file, please attach this to
your bugreport.
gcc-4.0.4 seems to work, but anything newer bombs
--
Summary: [4.1/4.2 regression] gcc ICEs/segfaults when using
implicit cabs() with -O1
Product: gcc
Version: 4.2.4
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: vapier at gentoo dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug c/35227] [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
@ 2008-02-17 8:24 ` vapier at gentoo dot org
2008-02-17 8:33 ` [Bug middle-end/35227] [4.1/4.2/4.3 " pinskia at gcc dot gnu dot org
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: vapier at gentoo dot org @ 2008-02-17 8:24 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from vapier at gentoo dot org 2008-02-17 08:23 -------
Created an attachment (id=15174)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=15174&action=view)
mandel.i
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.1/4.2/4.3 regression] gcc ICEs/segfaults when using implicit cabs() with -O1
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
2008-02-17 8:24 ` [Bug c/35227] " vapier at gentoo dot org
@ 2008-02-17 8:33 ` pinskia at gcc dot gnu dot org
2008-02-17 12:17 ` rguenth at gcc dot gnu dot org
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2008-02-17 8:33 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Component|c |middle-end
Summary|[4.1/4.2 regression] gcc |[4.1/4.2/4.3 regression] gcc
|ICEs/segfaults when using |ICEs/segfaults when using
|implicit cabs() with -O1 |implicit cabs() with -O1
Target Milestone|--- |4.2.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.1/4.2/4.3 regression] gcc ICEs/segfaults when using implicit cabs() with -O1
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
2008-02-17 8:24 ` [Bug c/35227] " vapier at gentoo dot org
2008-02-17 8:33 ` [Bug middle-end/35227] [4.1/4.2/4.3 " pinskia at gcc dot gnu dot org
@ 2008-02-17 12:17 ` rguenth at gcc dot gnu dot org
2008-02-17 14:03 ` rguenth at gcc dot gnu dot org
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2008-02-17 12:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2008-02-17 12:16 -------
#0 0x084ccf42 in init_parameter_lattice_values ()
at /home/richard/src/trunk/gcc/tree-complex.c:170
#1 0x084d5053 in tree_lower_complex ()
at /home/richard/src/trunk/gcc/tree-complex.c:1506
#2 0x083e99eb in execute_one_pass (pass=0x8bd2a60)
at /home/richard/src/trunk/gcc/passes.c:1122
we don't have a default-def for C even though it seems it is marked
as register. And is so after into-ssa already.
<bb 2>:
D.1177_2 = (double) py_1(D);
D.1178_3 = COMPLEX_EXPR <D.1177_2, 0.0>;
C_4 = D.1178_3 * __complex__ (0.0, 1.0e+0);
D.1180_5 = cabs (C_4);
D.1179_6 = (int) D.1180_5;
return D.1179_6;
is it a bogus assumption that every symbol has a default definition?
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |amacleod at redhat dot com
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2008-02-17 12:16:57
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.1/4.2/4.3 regression] gcc ICEs/segfaults when using implicit cabs() with -O1
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
` (2 preceding siblings ...)
2008-02-17 12:17 ` rguenth at gcc dot gnu dot org
@ 2008-02-17 14:03 ` rguenth at gcc dot gnu dot org
2008-02-17 14:13 ` [Bug middle-end/35227] [4.1/4.2/4.3 regression] gcc ICEs for functions with unused complex argument rguenth at gcc dot gnu dot org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2008-02-17 14:03 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2008-02-17 14:02 -------
Indeed it is. Other callers check this. Mine.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rguenth at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2008-02-17 12:16:57 |2008-02-17 14:02:32
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.1/4.2/4.3 regression] gcc ICEs for functions with unused complex argument
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
` (3 preceding siblings ...)
2008-02-17 14:03 ` rguenth at gcc dot gnu dot org
@ 2008-02-17 14:13 ` rguenth at gcc dot gnu dot org
2008-02-17 15:08 ` rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2008-02-17 14:13 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from rguenth at gcc dot gnu dot org 2008-02-17 14:12 -------
Unrelated to the implicit cabs() decl:
double cabs(double _Complex);
double mandel(double _Complex C)
{
int py;
C = (__extension__ 1.0iF) * (double)py;
return cabs(C);
}
I have a patch.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-on-valid-code
Priority|P3 |P1
Summary|[4.1/4.2/4.3 regression] gcc|[4.1/4.2/4.3 regression] gcc
|ICEs/segfaults when using |ICEs for functions with
|implicit cabs() with -O1 |unused complex argument
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.1/4.2/4.3 regression] gcc ICEs for functions with unused complex argument
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
` (4 preceding siblings ...)
2008-02-17 14:13 ` [Bug middle-end/35227] [4.1/4.2/4.3 regression] gcc ICEs for functions with unused complex argument rguenth at gcc dot gnu dot org
@ 2008-02-17 15:08 ` rguenth at gcc dot gnu dot org
2008-02-17 15:11 ` [Bug middle-end/35227] [4.1/4.2 " rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2008-02-17 15:08 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from rguenth at gcc dot gnu dot org 2008-02-17 15:07 -------
Subject: Bug 35227
Author: rguenth
Date: Sun Feb 17 15:06:53 2008
New Revision: 132379
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=132379
Log:
2008-02-17 Richard Guenther <rguenther@suse.de>
PR middle-end/35227
* tree-complex.c (init_parameter_lattice_values): Handle parameters
without default definition.
* gcc.dg/torture/pr35227.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr35227.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-complex.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.1/4.2 regression] gcc ICEs for functions with unused complex argument
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
` (5 preceding siblings ...)
2008-02-17 15:08 ` rguenth at gcc dot gnu dot org
@ 2008-02-17 15:11 ` rguenth at gcc dot gnu dot org
2008-05-19 20:34 ` jsm28 at gcc dot gnu dot org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2008-02-17 15:11 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rguenth at gcc dot gnu dot org 2008-02-17 15:11 -------
Fixed on the trunk.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|rguenth at gcc dot gnu dot |unassigned at gcc dot gnu
|org |dot org
Status|ASSIGNED |NEW
Known to work|4.0.4 |4.0.4 4.3.0
Summary|[4.1/4.2/4.3 regression] gcc|[4.1/4.2 regression] gcc
|ICEs for functions with |ICEs for functions with
|unused complex argument |unused complex argument
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.1/4.2 regression] gcc ICEs for functions with unused complex argument
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
` (6 preceding siblings ...)
2008-02-17 15:11 ` [Bug middle-end/35227] [4.1/4.2 " rguenth at gcc dot gnu dot org
@ 2008-05-19 20:34 ` jsm28 at gcc dot gnu dot org
2008-07-04 23:01 ` [Bug middle-end/35227] [4.2 " jsm28 at gcc dot gnu dot org
2009-03-31 15:14 ` jsm28 at gcc dot gnu dot org
9 siblings, 0 replies; 11+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2008-05-19 20:34 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from jsm28 at gcc dot gnu dot org 2008-05-19 20:24 -------
4.2.4 is being released, changing milestones to 4.2.5.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.2.4 |4.2.5
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.2 regression] gcc ICEs for functions with unused complex argument
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
` (7 preceding siblings ...)
2008-05-19 20:34 ` jsm28 at gcc dot gnu dot org
@ 2008-07-04 23:01 ` jsm28 at gcc dot gnu dot org
2009-03-31 15:14 ` jsm28 at gcc dot gnu dot org
9 siblings, 0 replies; 11+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2008-07-04 23:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from jsm28 at gcc dot gnu dot org 2008-07-04 23:00 -------
Closing 4.1 branch.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|[4.1/4.2 regression] gcc |[4.2 regression] gcc ICEs
|ICEs for functions with |for functions with unused
|unused complex argument |complex argument
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug middle-end/35227] [4.2 regression] gcc ICEs for functions with unused complex argument
2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
` (8 preceding siblings ...)
2008-07-04 23:01 ` [Bug middle-end/35227] [4.2 " jsm28 at gcc dot gnu dot org
@ 2009-03-31 15:14 ` jsm28 at gcc dot gnu dot org
9 siblings, 0 replies; 11+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2009-03-31 15:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from jsm28 at gcc dot gnu dot org 2009-03-31 15:13 -------
Closing 4.2 branch, fixed in 4.3.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Known to fail|4.1.2 4.2.3 |4.1.2 4.2.3 4.2.5
Resolution| |FIXED
Target Milestone|4.2.5 |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35227
^ permalink raw reply [flat|nested] 11+ messages in thread
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2008-02-17 8:23 [Bug c/35227] New: [4.1/4.2 regression] gcc ICEs/segfaults when using implicit cabs() with -O1 vapier at gentoo dot org
2008-02-17 8:24 ` [Bug c/35227] " vapier at gentoo dot org
2008-02-17 8:33 ` [Bug middle-end/35227] [4.1/4.2/4.3 " pinskia at gcc dot gnu dot org
2008-02-17 12:17 ` rguenth at gcc dot gnu dot org
2008-02-17 14:03 ` rguenth at gcc dot gnu dot org
2008-02-17 14:13 ` [Bug middle-end/35227] [4.1/4.2/4.3 regression] gcc ICEs for functions with unused complex argument rguenth at gcc dot gnu dot org
2008-02-17 15:08 ` rguenth at gcc dot gnu dot org
2008-02-17 15:11 ` [Bug middle-end/35227] [4.1/4.2 " rguenth at gcc dot gnu dot org
2008-05-19 20:34 ` jsm28 at gcc dot gnu dot org
2008-07-04 23:01 ` [Bug middle-end/35227] [4.2 " jsm28 at gcc dot gnu dot org
2009-03-31 15:14 ` jsm28 at gcc dot gnu dot org
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