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* [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113
@ 2011-05-28 0:55 arthur.j.odwyer at gmail dot com
2011-07-24 20:54 ` [Bug target/49206] [4.5/4.6/4.7 Regression] " pinskia at gcc dot gnu.org
` (13 more replies)
0 siblings, 14 replies; 15+ messages in thread
From: arthur.j.odwyer at gmail dot com @ 2011-05-28 0:55 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
Summary: RA failure in spill_failure, at reload1.c:2113
Product: gcc
Version: 4.5.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: arthur.j.odwyer@gmail.com
Created attachment 24383
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24383
Output of "ajo-gcc -O2 -w -c test.c -v"
This register-allocator failure reproduces for me with svn revision 173843
(2011-05-17), and also with gcc 4.5.1. It doesn't reproduce with gcc 4.4.5. I'm
on Ubuntu 10.10, x86-64.
cat >test.c <<EOF
struct S1 { short f0; };
extern volatile struct S1 g_5;
extern int g_120, i;
extern short g_339;
int func_72(int x, int y, struct S1 z) {
for (z.f0 = -3; z.f0 > 16; z.f0 += 1)
foo();
return g_120;
}
int main() {
while (g_339 % 0x200003) continue;
if (i)
func_72(0, 0, g_5);
foo(&g_339);
return 0;
}
EOF
gcc -O2 -w -c test.c
test.c: In function ‘main’:
test.c:17:1: error: unable to find a register to spill in class ‘DREG’
test.c:17:1: error: this is the insn:
(insn 7 6 8 2 (parallel [
(set (reg:SI 2 cx [64])
(truncate:SI (lshiftrt:DI (mult:DI (sign_extend:DI (reg:SI 4 si
[orig:61 pretmp.11 ] [61]))
(sign_extend:DI (reg:SI 2 cx [66])))
(const_int 32 [0x20]))))
(clobber (scratch:SI))
(clobber (reg:CC 17 flags))
]) test.c:12 343 {*smulsi3_highpart_1}
(expr_list:REG_DEAD (reg:SI 2 cx [66])
(expr_list:REG_UNUSED (reg:CC 17 flags)
(expr_list:REG_EQUAL (truncate:SI (lshiftrt:DI (mult:DI
(sign_extend:DI (reg:SI 4 si [orig:61 pretmp.11 ] [61]))
(const_int 2147480577 [0x7ffff401]))
(const_int 32 [0x20])))
(nil)))))
test.c:17:1: internal compiler error: in spill_failure, at reload1.c:2113
This test case is reduced from the output of Csmith 2.1.0 (git hash 01aa8b04,
https://github.com/Quuxplusone/csmith/), using the following command line:
csmith --paranoid --longlong --no-pointers --no-arrays --jumps --consts
--volatiles --checksum --no-divs --muls --no-bitfields --no-packed-struct -s
855007444
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
@ 2011-07-24 20:54 ` pinskia at gcc dot gnu.org
2011-08-01 14:00 ` rguenth at gcc dot gnu.org
` (12 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu.org @ 2011-07-24 20:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2011.07.24 20:54:39
Target Milestone|--- |4.5.4
Summary|RA failure in |[4.5/4.6/4.7 Regression] RA
|spill_failure, at |failure in spill_failure,
|reload1.c:2113 |at reload1.c:2113
Ever Confirmed|0 |1
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2011-07-24 20:54:39 UTC ---
Confirmed.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
2011-07-24 20:54 ` [Bug target/49206] [4.5/4.6/4.7 Regression] " pinskia at gcc dot gnu.org
@ 2011-08-01 14:00 ` rguenth at gcc dot gnu.org
2011-08-22 8:00 ` jakub at gcc dot gnu.org
` (11 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-08-01 14:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
2011-07-24 20:54 ` [Bug target/49206] [4.5/4.6/4.7 Regression] " pinskia at gcc dot gnu.org
2011-08-01 14:00 ` rguenth at gcc dot gnu.org
@ 2011-08-22 8:00 ` jakub at gcc dot gnu.org
2011-08-22 16:39 ` sergos.gnu at gmail dot com
` (10 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-08-22 8:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-08-22 07:29:16 UTC ---
Can only reproduce this with
http://gcc.gnu.org/viewcvs?view=revision&revision=172023
and later.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (2 preceding siblings ...)
2011-08-22 8:00 ` jakub at gcc dot gnu.org
@ 2011-08-22 16:39 ` sergos.gnu at gmail dot com
2011-08-22 16:46 ` jakub at gcc dot gnu.org
` (9 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: sergos.gnu at gmail dot com @ 2011-08-22 16:39 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
--- Comment #3 from Sergey Ostanevich <sergos.gnu at gmail dot com> 2011-08-22 16:37:54 UTC ---
is it right that while() is an infinite loop? at least some phases can rely on
this?
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (3 preceding siblings ...)
2011-08-22 16:39 ` sergos.gnu at gmail dot com
@ 2011-08-22 16:46 ` jakub at gcc dot gnu.org
2012-03-01 19:58 ` ubizjak at gmail dot com
` (8 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu.org @ 2011-08-22 16:46 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-08-22 16:43:28 UTC ---
It is a conditional infinite loop (identical to if (g_339 % 0x200003) for (;;);
).
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (4 preceding siblings ...)
2011-08-22 16:46 ` jakub at gcc dot gnu.org
@ 2012-03-01 19:58 ` ubizjak at gmail dot com
2012-03-01 21:33 ` jakub at gcc dot gnu.org
` (7 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2012-03-01 19:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
--- Comment #5 from Uros Bizjak <ubizjak at gmail dot com> 2012-03-01 19:57:27 UTC ---
The testcase works OK for 4.7, 64bit and 32bit targets.
GCC: (GNU) 4.7.0 20120229 (experimental) [trunk revision 184671]
I propose to add the testcase to the 4.7 torture testsuite and close the bug.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (5 preceding siblings ...)
2012-03-01 19:58 ` ubizjak at gmail dot com
@ 2012-03-01 21:33 ` jakub at gcc dot gnu.org
2012-03-01 23:05 ` ubizjak at gmail dot com
` (6 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-03-01 21:33 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-01 21:31:33 UTC ---
This went away with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181075
but was it really a fix for this, rather than just something that made the bug
latent?
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (6 preceding siblings ...)
2012-03-01 21:33 ` jakub at gcc dot gnu.org
@ 2012-03-01 23:05 ` ubizjak at gmail dot com
2012-07-02 11:41 ` [Bug target/49206] [4.5/4.6/4.7/4.8 " rguenth at gcc dot gnu.org
` (5 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2012-03-01 23:05 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
--- Comment #7 from Uros Bizjak <ubizjak at gmail dot com> 2012-03-01 23:04:12 UTC ---
(In reply to comment #6)
> This went away with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181075
> but was it really a fix for this, rather than just something that made the bug
> latent?
I am afraid that the change is not relevant for this bug, so the later...
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.5/4.6/4.7/4.8 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (7 preceding siblings ...)
2012-03-01 23:05 ` ubizjak at gmail dot com
@ 2012-07-02 11:41 ` rguenth at gcc dot gnu.org
2012-09-02 8:36 ` [Bug target/49206] [4.6/4.7/4.8 " ubizjak at gmail dot com
` (4 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-07-02 11:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.5.4 |4.6.4
--- Comment #8 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-02 11:40:05 UTC ---
The 4.5 branch is being closed, adjusting target milestone.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.6/4.7/4.8 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (8 preceding siblings ...)
2012-07-02 11:41 ` [Bug target/49206] [4.5/4.6/4.7/4.8 " rguenth at gcc dot gnu.org
@ 2012-09-02 8:36 ` ubizjak at gmail dot com
2012-09-02 8:50 ` uros at gcc dot gnu.org
` (3 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2012-09-02 8:36 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
--- Comment #9 from Uros Bizjak <ubizjak at gmail dot com> 2012-09-02 08:35:45 UTC ---
(In reply to comment #7)
> > This went away with http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=181075
> > but was it really a fix for this, rather than just something that made the bug
> > latent?
>
> I am afraid that the change is not relevant for this bug, so the later...
I have backed up r181075 on the mainline, and the test still passes. I will
put the test to compile torture testsuite, as this is the maximum we can do
now.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.6/4.7/4.8 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (9 preceding siblings ...)
2012-09-02 8:36 ` [Bug target/49206] [4.6/4.7/4.8 " ubizjak at gmail dot com
@ 2012-09-02 8:50 ` uros at gcc dot gnu.org
2012-09-02 8:59 ` ubizjak at gmail dot com
` (2 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: uros at gcc dot gnu.org @ 2012-09-02 8:50 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
--- Comment #10 from uros at gcc dot gnu.org 2012-09-02 08:49:37 UTC ---
Author: uros
Date: Sun Sep 2 08:49:31 2012
New Revision: 190857
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190857
Log:
PR target/49206
* gcc.c-torture/compile/pr49206.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/compile/pr49206.c
Modified:
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.6/4.7/4.8 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (10 preceding siblings ...)
2012-09-02 8:50 ` uros at gcc dot gnu.org
@ 2012-09-02 8:59 ` ubizjak at gmail dot com
2012-09-02 9:11 ` [Bug target/49206] [4.6 " ubizjak at gmail dot com
2013-04-12 16:18 ` jakub at gcc dot gnu.org
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2012-09-02 8:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.7.1
Target Milestone|4.6.4 |4.8.0
Known to fail| |4.6.3
--- Comment #11 from Uros Bizjak <ubizjak at gmail dot com> 2012-09-02 08:58:52 UTC ---
Closed as fixed in 4.8.0.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.6 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (11 preceding siblings ...)
2012-09-02 8:59 ` ubizjak at gmail dot com
@ 2012-09-02 9:11 ` ubizjak at gmail dot com
2013-04-12 16:18 ` jakub at gcc dot gnu.org
13 siblings, 0 replies; 15+ messages in thread
From: ubizjak at gmail dot com @ 2012-09-02 9:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
Uros Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.8.0 |4.6.4
Summary|[4.6/4.7/4.8 Regression] RA |[4.6 Regression] RA failure
|failure in spill_failure, |in spill_failure, at
|at reload1.c:2113 |reload1.c:2113
--- Comment #12 from Uros Bizjak <ubizjak at gmail dot com> 2012-09-02 09:10:15 UTC ---
Let's keep this PR open as a 4.6 regression.
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug target/49206] [4.6 Regression] RA failure in spill_failure, at reload1.c:2113
2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
` (12 preceding siblings ...)
2012-09-02 9:11 ` [Bug target/49206] [4.6 " ubizjak at gmail dot com
@ 2013-04-12 16:18 ` jakub at gcc dot gnu.org
13 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-04-12 16:18 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49206
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
Target Milestone|4.6.4 |4.7.0
--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> 2013-04-12 16:17:48 UTC ---
The 4.6 branch has been closed, fixed in GCC 4.7.0.
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2013-04-12 16:18 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
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2011-05-28 0:55 [Bug target/49206] New: RA failure in spill_failure, at reload1.c:2113 arthur.j.odwyer at gmail dot com
2011-07-24 20:54 ` [Bug target/49206] [4.5/4.6/4.7 Regression] " pinskia at gcc dot gnu.org
2011-08-01 14:00 ` rguenth at gcc dot gnu.org
2011-08-22 8:00 ` jakub at gcc dot gnu.org
2011-08-22 16:39 ` sergos.gnu at gmail dot com
2011-08-22 16:46 ` jakub at gcc dot gnu.org
2012-03-01 19:58 ` ubizjak at gmail dot com
2012-03-01 21:33 ` jakub at gcc dot gnu.org
2012-03-01 23:05 ` ubizjak at gmail dot com
2012-07-02 11:41 ` [Bug target/49206] [4.5/4.6/4.7/4.8 " rguenth at gcc dot gnu.org
2012-09-02 8:36 ` [Bug target/49206] [4.6/4.7/4.8 " ubizjak at gmail dot com
2012-09-02 8:50 ` uros at gcc dot gnu.org
2012-09-02 8:59 ` ubizjak at gmail dot com
2012-09-02 9:11 ` [Bug target/49206] [4.6 " ubizjak at gmail dot com
2013-04-12 16:18 ` jakub at gcc dot gnu.org
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