* [Bug target/34225] [4.3 Regression] ICE (segfault)
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
@ 2007-11-25 13:41 ` rguenth at gcc dot gnu dot org
2007-11-25 13:57 ` rguenth at gcc dot gnu dot org
` (9 subsequent siblings)
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From: rguenth at gcc dot gnu dot org @ 2007-11-25 13:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rguenth at gcc dot gnu dot org 2007-11-25 13:41 -------
Created an attachment (id=14635)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14635&action=view)
reduced testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault)
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
2007-11-25 13:41 ` [Bug target/34225] " rguenth at gcc dot gnu dot org
@ 2007-11-25 13:57 ` rguenth at gcc dot gnu dot org
2007-11-25 18:26 ` [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191 pinskia at gcc dot gnu dot org
` (8 subsequent siblings)
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From: rguenth at gcc dot gnu dot org @ 2007-11-25 13:57 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2007-11-25 13:57 -------
A cross to ppc64 shows
Program received signal SIGSEGV, Segmentation fault.
0x0000000000b7ff6a in adjacent_mem_locations (insn1=0x2b2889d519b0,
insn2=0x2b2889ce50f0)
at /space/rguenther/src/svn/trunk/gcc/config/rs6000/rs6000.c:18191
18191 return ((REGNO (reg0) == REGNO (reg1))
(gdb) print reg0
$1 = (rtx) 0x2b28893626e0
(gdb) print reg1
$2 = (rtx) 0x2b28893626e0
(gdb) call debug_rtx (reg0)
(reg/f:DI 1 1)
huh?
(gdb) bt
#0 0x0000000000b7ff6a in adjacent_mem_locations (insn1=0x2b2889d519b0,
insn2=0x2b2889ce50f0)
at /space/rguenther/src/svn/trunk/gcc/config/rs6000/rs6000.c:18191
#1 0x0000000000b80d2a in rs6000_sched_reorder2 (dump=0x2b2889cd6840,
sched_verbose=0, ready=0x137e998, pn_ready=0x7fff217a7000, clock_var=26)
at /space/rguenther/src/svn/trunk/gcc/config/rs6000/rs6000.c:18735
#2 0x0000000000d2e240 in schedule_block (target_bb=0x7fff217a7190,
rgn_n_insns1=62) at /space/rguenther/src/svn/trunk/gcc/haifa-sched.c:2487
#3 0x00000000008461f6 in schedule_region (rgn=0)
at /space/rguenther/src/svn/trunk/gcc/sched-rgn.c:2815
#4 0x0000000000846598 in schedule_insns ()
at /space/rguenther/src/svn/trunk/gcc/sched-rgn.c:2935
#5 0x0000000000846fab in rest_of_handle_sched2 ()
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
2007-11-25 13:41 ` [Bug target/34225] " rguenth at gcc dot gnu dot org
2007-11-25 13:57 ` rguenth at gcc dot gnu dot org
@ 2007-11-25 18:26 ` pinskia at gcc dot gnu dot org
2007-11-25 18:50 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-11-25 18:26 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
Target Milestone|--- |4.3.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
` (2 preceding siblings ...)
2007-11-25 18:26 ` [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191 pinskia at gcc dot gnu dot org
@ 2007-11-25 18:50 ` pinskia at gcc dot gnu dot org
2007-11-25 18:51 ` pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-11-25 18:50 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from pinskia at gcc dot gnu dot org 2007-11-25 18:50 -------
18191 return ((REGNO (reg0) == REGNO (reg1))
18192 && (val_diff == INTVAL (MEM_SIZE (a))
18193 || val_diff == -INTVAL (MEM_SIZE (b))));
18194 }
18195
(gdb) p a
$1 = (rtx) 0x426fca60
(gdb) p b
$2 = (rtx) 0x426fb370
(gdb) p debug_rtx(a)
(mem/c:BLK (reg/f:DI 1 1) [0 A8])
$3 = void
(gdb) p debug_rtx(b)
(mem/c:DI (plus:DI (reg/f:DI 1 1)
(const_int 120 [0x78])) [0 argv+0 S8 A8])
Confirmed. a does not have a mem attributes.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2007-11-25 18:50:20
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
` (3 preceding siblings ...)
2007-11-25 18:50 ` pinskia at gcc dot gnu dot org
@ 2007-11-25 18:51 ` pinskia at gcc dot gnu dot org
2007-11-25 18:52 ` pinskia at gcc dot gnu dot org
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-11-25 18:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2007-11-25 18:51 -------
(insn:TI 448 79 76 2 t.c:18 (set (mem/c:BLK (reg/f:DI 1 1) [0 A8])
(unspec:BLK [
(mem/c:BLK (reg/f:DI 1 1) [0 A8])
] 5)) 542 {stack_tie} (nil))
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
` (4 preceding siblings ...)
2007-11-25 18:51 ` pinskia at gcc dot gnu dot org
@ 2007-11-25 18:52 ` pinskia at gcc dot gnu dot org
2007-11-25 20:26 ` dje at gcc dot gnu dot org
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-11-25 18:52 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pinskia at gcc dot gnu dot org 2007-11-25 18:52 -------
#1 0x00828329 in rs6000_emit_stack_tie () at
../../gcc/config/rs6000/rs6000.c:14974
14974 emit_insn (gen_stack_tie (mem));
(gdb) l
14969 rs6000_emit_stack_tie (void)
14970 {
14971 rtx mem = gen_frame_mem (BLKmode,
14972 gen_rtx_REG (Pmode, STACK_POINTER_REGNUM));
14973
14974 emit_insn (gen_stack_tie (mem));
that is where the stack_tie is generated.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
` (5 preceding siblings ...)
2007-11-25 18:52 ` pinskia at gcc dot gnu dot org
@ 2007-11-25 20:26 ` dje at gcc dot gnu dot org
2007-11-26 14:45 ` jakub at gcc dot gnu dot org
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: dje at gcc dot gnu dot org @ 2007-11-25 20:26 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from dje at gcc dot gnu dot org 2007-11-25 20:26 -------
It is not clear that the scheduling code should be considering stack_tie for
this particular conflict. But the stack_tie MEM probably should have some
basic attributes using set_mem_attrs_from_reg.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
` (6 preceding siblings ...)
2007-11-25 20:26 ` dje at gcc dot gnu dot org
@ 2007-11-26 14:45 ` jakub at gcc dot gnu dot org
2007-11-26 21:15 ` jakub at gcc dot gnu dot org
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: jakub at gcc dot gnu dot org @ 2007-11-26 14:45 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from jakub at gcc dot gnu dot org 2007-11-26 14:45 -------
Created an attachment (id=14641)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=14641&action=view)
gcc43-pr34225-test.patch
Reduced testcase.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
` (7 preceding siblings ...)
2007-11-26 14:45 ` jakub at gcc dot gnu dot org
@ 2007-11-26 21:15 ` jakub at gcc dot gnu dot org
2007-11-27 15:28 ` jakub at gcc dot gnu dot org
2007-11-27 15:52 ` jakub at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: jakub at gcc dot gnu dot org @ 2007-11-26 21:15 UTC (permalink / raw)
To: gcc-bugs
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |jakub at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2007-11-25 18:50:20 |2007-11-26 21:15:44
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
` (8 preceding siblings ...)
2007-11-26 21:15 ` jakub at gcc dot gnu dot org
@ 2007-11-27 15:28 ` jakub at gcc dot gnu dot org
2007-11-27 15:52 ` jakub at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: jakub at gcc dot gnu dot org @ 2007-11-27 15:28 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from jakub at gcc dot gnu dot org 2007-11-27 15:28 -------
Subject: Bug 34225
Author: jakub
Date: Tue Nov 27 15:28:07 2007
New Revision: 130470
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=130470
Log:
PR target/34225
* config/rs6000/rs6000.c (adjacent_mem_locations): Don't assume
MEM_SIZE is set on all MEMs.
* gcc.dg/pr34225.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr34225.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/rs6000/rs6000.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread* [Bug target/34225] [4.3 Regression] ICE (segfault) in adjacent_mem_locations at rs6000.c:18191
2007-11-25 13:41 [Bug target/34225] New: [4.3 Regression] ICE (segfault) rguenth at gcc dot gnu dot org
` (9 preceding siblings ...)
2007-11-27 15:28 ` jakub at gcc dot gnu dot org
@ 2007-11-27 15:52 ` jakub at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: jakub at gcc dot gnu dot org @ 2007-11-27 15:52 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from jakub at gcc dot gnu dot org 2007-11-27 15:52 -------
Fixed.
--
jakub at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34225
^ permalink raw reply [flat|nested] 12+ messages in thread