public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug optimization/11994] New: vax-netbsd build segfaults on unwind-dw2.c
@ 2003-08-20 18:21 dhazeghi at yahoo dot com
2003-08-20 18:49 ` [Bug optimization/11994] [3.4 regression] " dhazeghi at yahoo dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: dhazeghi at yahoo dot com @ 2003-08-20 18:21 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11994
Summary: vax-netbsd build segfaults on unwind-dw2.c
Product: gcc
Version: 3.4
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P2
Component: optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dhazeghi at yahoo dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC target triplet: vax-netbsd
When building a cross (mainline 20030820) to vax-netbsd, build dies with:
./xgcc -B./ -B/tmp/dara//vax-netbsd/bin/ -isystem /tmp/dara//vax-netbsd/include
-isystem /tmp/dara//vax-netbsd/sys-include -L/tmp/mainline/objdir/gcc/../ld -O2
-DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -isystem ./include -g -DIN_LIBGCC2
-D__GCC_FLOAT_NOT_NEEDED -I. -I. -I../../gcc/gcc -I../../gcc/gcc/.
-I../../gcc/gcc/config -I../../gcc/gcc/../include -fexceptions -c
../../gcc/gcc/unwind-dw2.c -o libgcc/./unwind-dw2.o
In file included from ../../gcc/gcc/unwind-dw2.c:37:
../../gcc/gcc/unwind-pe.h: In function `size_of_encoded_value':
../../gcc/gcc/unwind-pe.h:88: internal compiler error: Segmentation fault
If the optimization level is decreases to -O1 or lower, the crash goes away.
Here's the testcase (it seems very fragile):
#define DW_EH_PE_absptr 0x00
#define DW_EH_PE_omit 0xff
#define DW_EH_PE_udata2 0x02
#define DW_EH_PE_udata4 0x03
#define DW_EH_PE_udata8 0x04
static unsigned int
size_of_encoded_value (unsigned char encoding)
{
switch (encoding & 0x07)
{
case DW_EH_PE_absptr:
return sizeof (void *);
case DW_EH_PE_udata2:
return 2;
case DW_EH_PE_udata4:
case DW_EH_PE_udata8:
return 8;
}
__gxx_abort ();
}
This can be reproduced just with a cross cc1.
Here's the backtrace:
#0 label_is_jump_target_p (label=0x40161280, jump_insn=0x401a2d00)
at ../../gcc/gcc/cfgcleanup.c:643
#1 0x08205ccd in try_optimize_cfg (mode=256) at ../../gcc/gcc/cfgcleanup.c:1720
#2 0x08205de1 in cleanup_cfg (mode=256) at ../../gcc/gcc/cfgcleanup.c:1891
#3 0x080b93ba in cfg_layout_initialize () at ../../gcc/gcc/cfglayout.c:1128
#4 0x081ffbdb in reorder_basic_blocks () at ../../gcc/gcc/bb-reorder.c:1067
#5 0x081d1c2d in rest_of_handle_reorder_blocks (decl=0x401a0b64,
insns=0x4015e3e0) at ../../gcc/gcc/toplev.c:2201
#6 0x081d3805 in rest_of_compilation (decl=0x401a0b64)
at ../../gcc/gcc/toplev.c:3401
#7 0x08063a9f in c_expand_body_1 (fndecl=0x401a0b64, nested_p=0)
at ../../gcc/gcc/c-decl.c:6329
#8 0x08063ec8 in c_expand_body (fndecl=0x401a0b64) at ../../gcc/gcc/c-decl.c:6411
#9 0x08063692 in finish_function (nested=0, can_defer_p=1)
at ../../gcc/gcc/c-decl.c:6199
#10 0x0804a3cb in yyparse () at c-parse.y:385
#11 0x0804e417 in c_parse_file () at c-parse.y:3015
#12 0x0808754d in c_common_parse_file (set_yydebug=1)
at ../../gcc/gcc/c-opts.c:1210
#13 0x081d1222 in compile_file () at ../../gcc/gcc/toplev.c:1730
#14 0x081d4cec in do_compile () at ../../gcc/gcc/toplev.c:4407
#15 0x081d4dc5 in toplev_main (argc=3, argv=0xbffff104)
at ../../gcc/gcc/toplev.c:4447
#16 0x080a0dbb in main (argc=3, argv=0xbffff104) at ../../gcc/gcc/main.c:35
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/11994] [3.4 regression] vax-netbsd build segfaults on unwind-dw2.c
2003-08-20 18:21 [Bug optimization/11994] New: vax-netbsd build segfaults on unwind-dw2.c dhazeghi at yahoo dot com
@ 2003-08-20 18:49 ` dhazeghi at yahoo dot com
2003-08-23 2:58 ` [Bug optimization/11994] [3.4 regression] [cfg] " pinskia at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: dhazeghi at yahoo dot com @ 2003-08-20 18:49 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11994
dhazeghi at yahoo dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|vax-netbsd build segfaults |[3.4 regression] vax-netbsd
|on unwind-dw2.c |build segfaults on unwind-
| |dw2.c
------- Additional Comments From dhazeghi at yahoo dot com 2003-08-20 18:49 -------
Works fine with 3.3 branch (20030820).
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/11994] [3.4 regression] [cfg] vax-netbsd build segfaults on unwind-dw2.c
2003-08-20 18:21 [Bug optimization/11994] New: vax-netbsd build segfaults on unwind-dw2.c dhazeghi at yahoo dot com
2003-08-20 18:49 ` [Bug optimization/11994] [3.4 regression] " dhazeghi at yahoo dot com
@ 2003-08-23 2:58 ` pinskia at gcc dot gnu dot org
2003-09-17 13:53 ` rakdver at gcc dot gnu dot org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2003-08-23 2:58 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11994
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|normal |critical
Priority|P2 |P1
Summary|[3.4 regression] vax-netbsd |[3.4 regression] [cfg] vax-
|build segfaults on unwind- |netbsd build segfaults on
|dw2.c |unwind-dw2.c
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/11994] [3.4 regression] [cfg] vax-netbsd build segfaults on unwind-dw2.c
2003-08-20 18:21 [Bug optimization/11994] New: vax-netbsd build segfaults on unwind-dw2.c dhazeghi at yahoo dot com
2003-08-20 18:49 ` [Bug optimization/11994] [3.4 regression] " dhazeghi at yahoo dot com
2003-08-23 2:58 ` [Bug optimization/11994] [3.4 regression] [cfg] " pinskia at gcc dot gnu dot org
@ 2003-09-17 13:53 ` rakdver at gcc dot gnu dot org
2003-09-18 7:13 ` pinskia at gcc dot gnu dot org
2003-09-27 16:33 ` dhazeghi at yahoo dot com
4 siblings, 0 replies; 6+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2003-09-17 13:53 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11994
------- Additional Comments From rakdver at gcc dot gnu dot org 2003-09-17 12:51 -------
Does not reproduce for me (mainline 20030917)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/11994] [3.4 regression] [cfg] vax-netbsd build segfaults on unwind-dw2.c
2003-08-20 18:21 [Bug optimization/11994] New: vax-netbsd build segfaults on unwind-dw2.c dhazeghi at yahoo dot com
` (2 preceding siblings ...)
2003-09-17 13:53 ` rakdver at gcc dot gnu dot org
@ 2003-09-18 7:13 ` pinskia at gcc dot gnu dot org
2003-09-27 16:33 ` dhazeghi at yahoo dot com
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2003-09-18 7:13 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11994
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
------- Additional Comments From pinskia at gcc dot gnu dot org 2003-09-18 06:36 -------
I know you are on vaction and I know Stanford starts next week.
Can you retry this as it looks to be fixed already?
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug optimization/11994] [3.4 regression] [cfg] vax-netbsd build segfaults on unwind-dw2.c
2003-08-20 18:21 [Bug optimization/11994] New: vax-netbsd build segfaults on unwind-dw2.c dhazeghi at yahoo dot com
` (3 preceding siblings ...)
2003-09-18 7:13 ` pinskia at gcc dot gnu dot org
@ 2003-09-27 16:33 ` dhazeghi at yahoo dot com
4 siblings, 0 replies; 6+ messages in thread
From: dhazeghi at yahoo dot com @ 2003-09-27 16:33 UTC (permalink / raw)
To: gcc-bugs
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11994
dhazeghi at yahoo dot com changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
------- Additional Comments From dhazeghi at yahoo dot com 2003-09-27 15:22 -------
I can't reproduce either with mainline (20030920). Closing...
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2003-09-27 15:22 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2003-08-20 18:21 [Bug optimization/11994] New: vax-netbsd build segfaults on unwind-dw2.c dhazeghi at yahoo dot com
2003-08-20 18:49 ` [Bug optimization/11994] [3.4 regression] " dhazeghi at yahoo dot com
2003-08-23 2:58 ` [Bug optimization/11994] [3.4 regression] [cfg] " pinskia at gcc dot gnu dot org
2003-09-17 13:53 ` rakdver at gcc dot gnu dot org
2003-09-18 7:13 ` pinskia at gcc dot gnu dot org
2003-09-27 16:33 ` dhazeghi at yahoo dot com
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).