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* [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
@ 2008-09-06 8:41 tbm at cyrius dot com
2008-09-06 8:46 ` [Bug tree-optimization/37392] " tbm at cyrius dot com
` (10 more replies)
0 siblings, 11 replies; 12+ messages in thread
From: tbm at cyrius dot com @ 2008-09-06 8:41 UTC (permalink / raw)
To: gcc-bugs
With current trunk (revision 140055):
(gdb) run -quiet -O3 ~/libimager-perl-fills.i
Starting program: /home/tbm/tmp/gcc/4.3-2008-09-06-r140055/gcc/cc1 -quiet -O3
~/libimager-perl-fills.i
Program received signal SIGSEGV, Segmentation fault.
verify_ssa (check_modified_stmt=1 '\001') at
/home/tbm/scratch/gcc/gcc/tree-ssa.c:751
751 if (!gimple_nop_p (stmt))
(gdb) where
#0 verify_ssa (check_modified_stmt=1 '\001') at
/home/tbm/scratch/gcc/gcc/tree-ssa.c:751
#1 0x0000000000640458 in execute_function_todo (data=<value optimized out>) at
/home/tbm/scratch/gcc/gcc/passes.c:998
#2 0x000000000064071f in execute_todo (flags=0) at
/home/tbm/scratch/gcc/gcc/passes.c:1024
#3 0x00000000006409bf in execute_one_pass (pass=0x101be60) at
/home/tbm/scratch/gcc/gcc/passes.c:1262
#4 0x0000000000640c35 in execute_pass_list (pass=0x101be60) at
/home/tbm/scratch/gcc/gcc/passes.c:1326
#5 0x00000000007374dc in tree_rest_of_compilation (fndecl=0x7f9b94701600) at
/home/tbm/scratch/gcc/gcc/tree-optimize.c:418
#6 0x00000000008b08e0 in cgraph_expand_function (node=0x7f9b94535200) at
/home/tbm/scratch/gcc/gcc/cgraphunit.c:1038
#7 0x00000000008b2654 in cgraph_optimize () at
/home/tbm/scratch/gcc/gcc/cgraphunit.c:1097
#8 0x00000000004169c3 in c_write_global_declarations () at
/home/tbm/scratch/gcc/gcc/c-decl.c:8080
#9 0x00000000006e873f in toplev_main (argc=<value optimized out>, argv=<value
optimized out>)
at /home/tbm/scratch/gcc/gcc/toplev.c:979
#10 0x00007f9b949441a6 in __libc_start_main () from /lib/libc.so.6
#11 0x00000000004044d9 in _start ()
(gdb)
--
Summary: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p
(stmt)
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tbm at cyrius dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
2008-09-06 8:46 ` [Bug tree-optimization/37392] " tbm at cyrius dot com
@ 2008-09-06 8:46 ` tbm at cyrius dot com
2008-09-06 21:44 ` pinskia at gcc dot gnu dot org
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: tbm at cyrius dot com @ 2008-09-06 8:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from tbm at cyrius dot com 2008-09-06 08:44 -------
Created an attachment (id=16240)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16240&action=view)
Preprocessed code
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
@ 2008-09-06 8:46 ` tbm at cyrius dot com
2008-09-06 8:46 ` tbm at cyrius dot com
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: tbm at cyrius dot com @ 2008-09-06 8:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from tbm at cyrius dot com 2008-09-06 08:45 -------
Created an attachment (id=16241)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=16241&action=view)
Slightly reduced testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
2008-09-06 8:46 ` [Bug tree-optimization/37392] " tbm at cyrius dot com
2008-09-06 8:46 ` tbm at cyrius dot com
@ 2008-09-06 21:44 ` pinskia at gcc dot gnu dot org
2008-09-06 22:29 ` 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 @ 2008-09-06 21:44 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
Summary|[4.4 Regression] Segfault in|[4.4 Regression] Segfault in
|verify_ssa: !gimple_nop_p |verify_ssa: !gimple_nop_p
|(stmt) |(stmt)
Target Milestone|--- |4.4.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
` (2 preceding siblings ...)
2008-09-06 21:44 ` pinskia at gcc dot gnu dot org
@ 2008-09-06 22:29 ` pinskia at gcc dot gnu dot org
2008-09-06 22:49 ` 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 @ 2008-09-06 22:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from pinskia at gcc dot gnu dot org 2008-09-06 22:27 -------
Reduced testcase:
typedef struct
{
unsigned char r, g, b;
}
rgb_color;
typedef union
{
rgb_color rgb;
unsigned char channel[4];
}
i_color;
struct i_fill_image_t
{
double matrix[9];
};
static i_color
interp_i_color (i_color before, i_color after, double pos)
{
i_color out;
int ch;
for (ch = 0; ch < 10; ++ch)
out.channel[ch] = (1 - pos) * before.channel[ch] * after.channel[ch] ;
if (out.channel[3])
for (ch = 0; ch < 10; ++ch)
if (ch != 3)
{
int temp = out.channel[ch] * 255 / out.channel[3];
if (temp > 255)
temp = 255;
}
return out;
}
void fill_image ( i_color * data )
{
struct i_fill_image_t *f ;
i_color *out = data;
double rx = f->matrix[0];
double ry = f->matrix[5];
i_color c[2][2];
i_color c2[2];
int dy = 0;
for (dy = 0; dy < 2; ++dy)
c2[dy] = interp_i_color (c[dy][0], c[dy][1], rx);
*out++ = interp_i_color (c2[0], c2[1], ry);
}
-- CUT --
It looks like inlining that is causing some SSA to have a NULL def statement.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2008-09-06 22:27:54
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
` (3 preceding siblings ...)
2008-09-06 22:29 ` pinskia at gcc dot gnu dot org
@ 2008-09-06 22:49 ` pinskia at gcc dot gnu dot org
2008-09-06 22:51 ` 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 @ 2008-09-06 22:49 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2008-09-06 22:48 -------
This works now with revision 140075.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
` (4 preceding siblings ...)
2008-09-06 22:49 ` pinskia at gcc dot gnu dot org
@ 2008-09-06 22:51 ` pinskia at gcc dot gnu dot org
2008-09-09 20:40 ` jsm28 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 @ 2008-09-06 22:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pinskia at gcc dot gnu dot org 2008-09-06 22:49 -------
I want to say part of the fix for PR 14703 fixed this bug.
Honza could you look into this bug?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
` (5 preceding siblings ...)
2008-09-06 22:51 ` pinskia at gcc dot gnu dot org
@ 2008-09-09 20:40 ` jsm28 at gcc dot gnu dot org
2008-09-12 5:29 ` tbm at cyrius dot com
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2008-09-09 20:40 UTC (permalink / raw)
To: gcc-bugs
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
` (6 preceding siblings ...)
2008-09-09 20:40 ` jsm28 at gcc dot gnu dot org
@ 2008-09-12 5:29 ` tbm at cyrius dot com
2008-09-12 9:54 ` hubicka at gcc dot gnu dot org
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: tbm at cyrius dot com @ 2008-09-12 5:29 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from tbm at cyrius dot com 2008-09-12 05:28 -------
(In reply to comment #4)
> This works now with revision 140075.
Maybe the reduced one works now, but the original preprocessed source
still shows the problem.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
` (7 preceding siblings ...)
2008-09-12 5:29 ` tbm at cyrius dot com
@ 2008-09-12 9:54 ` hubicka at gcc dot gnu dot org
2008-09-13 14:40 ` hubicka at gcc dot gnu dot org
2008-09-13 22:40 ` hubicka at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2008-09-12 9:54 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from hubicka at gcc dot gnu dot org 2008-09-12 09:52 -------
Testing patch..
--
hubicka at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |hubicka at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
Last reconfirmed|2008-09-06 22:27:54 |2008-09-12 09:52:53
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
` (8 preceding siblings ...)
2008-09-12 9:54 ` hubicka at gcc dot gnu dot org
@ 2008-09-13 14:40 ` hubicka at gcc dot gnu dot org
2008-09-13 22:40 ` hubicka at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2008-09-13 14:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from hubicka at gcc dot gnu dot org 2008-09-13 14:39 -------
Subject: Bug 37392
Author: hubicka
Date: Sat Sep 13 14:38:10 2008
New Revision: 140342
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=140342
Log:
PR tree-optimization/37392
* tree-inline.c (remap_gimple_stmt): Do not remap return value.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-inline.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug tree-optimization/37392] [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt)
2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
` (9 preceding siblings ...)
2008-09-13 14:40 ` hubicka at gcc dot gnu dot org
@ 2008-09-13 22:40 ` hubicka at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: hubicka at gcc dot gnu dot org @ 2008-09-13 22:40 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from hubicka at gcc dot gnu dot org 2008-09-13 22:38 -------
Fixed by my patch.
--
hubicka at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37392
^ permalink raw reply [flat|nested] 12+ messages in thread
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2008-09-06 8:41 [Bug tree-optimization/37392] New: [4.4 Regression] Segfault in verify_ssa: !gimple_nop_p (stmt) tbm at cyrius dot com
2008-09-06 8:46 ` [Bug tree-optimization/37392] " tbm at cyrius dot com
2008-09-06 8:46 ` tbm at cyrius dot com
2008-09-06 21:44 ` pinskia at gcc dot gnu dot org
2008-09-06 22:29 ` pinskia at gcc dot gnu dot org
2008-09-06 22:49 ` pinskia at gcc dot gnu dot org
2008-09-06 22:51 ` pinskia at gcc dot gnu dot org
2008-09-09 20:40 ` jsm28 at gcc dot gnu dot org
2008-09-12 5:29 ` tbm at cyrius dot com
2008-09-12 9:54 ` hubicka at gcc dot gnu dot org
2008-09-13 14:40 ` hubicka at gcc dot gnu dot org
2008-09-13 22:40 ` hubicka at gcc dot gnu dot org
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