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* [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better
@ 2006-04-23 9:55 rask at sygehus dot dk
2006-04-23 14:46 ` [Bug c/27266] " rask at sygehus dot dk
` (10 more replies)
0 siblings, 11 replies; 12+ messages in thread
From: rask at sygehus dot dk @ 2006-04-23 9:55 UTC (permalink / raw)
To: gcc-bugs
Mainline is ICE'ing on testsuite/gcc.c-torture/compile/sync-1.c for some
arguments to -march. For example:
./xgcc -B. -O2
/mnt/sysfs/rask/cvssrc/gcc/gcc/testsuite/gcc.c-torture/compile/sync-1.c -S -o
/tmp/sync-1.s -march=pentium
/mnt/sysfs/rask/cvssrc/gcc/gcc/testsuite/gcc.c-torture/compile/sync-1.c: In
function 'test_lock':
/mnt/sysfs/rask/cvssrc/gcc/gcc/testsuite/gcc.c-torture/compile/sync-1.c:261:
internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
It works with: i386, i486, winchip-c6, winchip2 and c3.
It fails with: pentium, pentium-mmx, pentiumpro, pentium2, pentium3, pentium4,
nocona, prescott, k6, k6-2, k6-3, k8, athlon, opteron and c3-2.
The gcc-4.1.0-3 compiler shipped by Red Hat fails in the same way for the same
arguments to -march.
--
Summary: syncronization primitives cause ICE with -march=pentium
or better
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: rask at sygehus dot dk
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug c/27266] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
@ 2006-04-23 14:46 ` rask at sygehus dot dk
2006-04-23 16:09 ` [Bug target/27266] [4.2 Regression] " pinskia at gcc dot gnu dot org
` (9 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: rask at sygehus dot dk @ 2006-04-23 14:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from rask at sygehus dot dk 2006-04-23 14:46 -------
Created an attachment (id=11317)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11317&action=view)
Preprocessed source code
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
2006-04-23 14:46 ` [Bug c/27266] " rask at sygehus dot dk
@ 2006-04-23 16:09 ` pinskia at gcc dot gnu dot org
2006-04-23 16:10 ` pinskia at gcc dot gnu dot org
` (8 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-04-23 16:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pinskia at gcc dot gnu dot org 2006-04-23 16:09 -------
Note Redhat's 4.1.0 is closer to 4.2.0 than 4.1.0.
Anyways confirmed a regression in that it worked in 4.1.0.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |ice-on-valid-code
Known to fail| |4.2.0
Known to work| |4.1.0
Last reconfirmed|0000-00-00 00:00:00 |2006-04-23 16:09:17
date| |
Summary|syncronization primitives |[4.2 Regression]
|cause ICE with - |syncronization primitives
|march=pentium or better |cause ICE with -
| |march=pentium or better
Target Milestone|--- |4.2.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
2006-04-23 14:46 ` [Bug c/27266] " rask at sygehus dot dk
2006-04-23 16:09 ` [Bug target/27266] [4.2 Regression] " pinskia at gcc dot gnu dot org
@ 2006-04-23 16:10 ` pinskia at gcc dot gnu dot org
2006-05-08 7:51 ` 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 @ 2006-04-23 16:10 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from pinskia at gcc dot gnu dot org 2006-04-23 16:10 -------
Also here is the backtrace:
#0 split_di (operands=0xc0c768, num=0, lo_half=0x7fffff89ab58,
hi_half=0x7fffff89ab48)
at /home/pinskia/src/newtest/trunk/gcc/config/i386/i386.c:8037
#1 0x00000000007ff0eb in ix86_expand_branch (code=<value optimized out>,
label=0x2aaaaae037d0)
at /home/pinskia/src/newtest/trunk/gcc/config/i386/i386.c:10196
#2 0x00000000006c0ec6 in gen_bne (operand0=0x2aaaaae037d0) at i386.md:12951
#3 0x0000000000725a1b in expand_compare_and_swap_loop (mem=0x2aaaaafb3d20,
old_reg=0x2aaaaafb3d40, new_reg=0x2aaaaafb3f60, seq=<value optimized out>)
at /home/pinskia/src/newtest/trunk/gcc/optabs.c:5960
#4 0x000000000072bfdc in expand_sync_operation (mem=0x2aaaaafb3d20,
val=<value optimized out>, code=AND)
at /home/pinskia/src/newtest/trunk/gcc/optabs.c:6048
#5 0x0000000000533587 in expand_builtin (exp=0x2aaaaae03410,
target=0xafafafafafafafaf, subtarget=0x0, mode=12633960, ignore=13)
at /home/pinskia/src/newtest/trunk/gcc/builtins.c:6279
#6 0x00000000005c37ae in expand_expr_real_1 (exp=<value optimized out>,
target=<value optimized out>, tmode=<value optimized out>,
modifier=EXPAND_NORMAL, alt_rtl=0x0)
at /home/pinskia/src/newtest/trunk/gcc/expr.c:7584
This proves this is a target specific bug.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
` (2 preceding siblings ...)
2006-04-23 16:10 ` pinskia at gcc dot gnu dot org
@ 2006-05-08 7:51 ` pinskia at gcc dot gnu dot org
2006-05-09 23:57 ` janis 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 @ 2006-05-08 7:51 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2006-05-08 07:51 -------
Janis could you do a regression hunt for this bug?
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |janis at gcc dot gnu dot org
GCC build triplet|i686-pc-linux-gnu |
GCC host triplet|i686-pc-linux-gnu |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
` (3 preceding siblings ...)
2006-05-08 7:51 ` pinskia at gcc dot gnu dot org
@ 2006-05-09 23:57 ` janis at gcc dot gnu dot org
2006-05-20 8:01 ` kazu at gcc dot gnu dot org
` (5 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: janis at gcc dot gnu dot org @ 2006-05-09 23:57 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from janis at gcc dot gnu dot org 2006-05-09 23:57 -------
A regression hunt using an i686-linux cross compiler on powerpc-linux with the
testcase attached in comment #1 identified this large merge from gomp-branch:
http://gcc.gnu.org/viewcvs?view=rev&rev=108997
r108997 | rth | 2005-12-23 00:43:34 +0000 (Fri, 23 Dec 2005)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
` (4 preceding siblings ...)
2006-05-09 23:57 ` janis at gcc dot gnu dot org
@ 2006-05-20 8:01 ` kazu at gcc dot gnu dot org
2006-05-20 8:43 ` kazu at gcc dot gnu dot org
` (4 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: kazu at gcc dot gnu dot org @ 2006-05-20 8:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from kazu at gcc dot gnu dot org 2006-05-20 08:00 -------
Reduced down to:
signed long long sll;
void
foo (void)
{
__sync_fetch_and_add (&sll, 1);
}
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
` (5 preceding siblings ...)
2006-05-20 8:01 ` kazu at gcc dot gnu dot org
@ 2006-05-20 8:43 ` kazu at gcc dot gnu dot org
2006-05-20 19:41 ` kazu at gcc dot gnu dot org
` (3 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: kazu at gcc dot gnu dot org @ 2006-05-20 8:43 UTC (permalink / raw)
To: gcc-bugs
--
kazu at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |kazu at gcc dot gnu dot org
|dot org |
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
` (6 preceding siblings ...)
2006-05-20 8:43 ` kazu at gcc dot gnu dot org
@ 2006-05-20 19:41 ` kazu at gcc dot gnu dot org
2006-05-22 17:38 ` rth at gcc dot gnu dot org
` (2 subsequent siblings)
10 siblings, 0 replies; 12+ messages in thread
From: kazu at gcc dot gnu dot org @ 2006-05-20 19:41 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from kazu at gcc dot gnu dot org 2006-05-20 19:40 -------
Posted a patch.
--
kazu at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
URL| |http://gcc.gnu.org/ml/gcc-
| |patches/2006-
| |05/msg01033.html
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
` (7 preceding siblings ...)
2006-05-20 19:41 ` kazu at gcc dot gnu dot org
@ 2006-05-22 17:38 ` rth at gcc dot gnu dot org
2006-05-22 17:56 ` kazu at gcc dot gnu dot org
2006-05-22 17:56 ` kazu at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: rth at gcc dot gnu dot org @ 2006-05-22 17:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from rth at gcc dot gnu dot org 2006-05-22 17:38 -------
Subject: Re: [4.2 Regression] syncronization primitives cause ICE with
-march=pentium or better
On Sat, May 20, 2006 at 07:40:33PM -0000, kazu at gcc dot gnu dot org wrote:
> Posted a patch.
Patch ok.
r~
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
` (8 preceding siblings ...)
2006-05-22 17:38 ` rth at gcc dot gnu dot org
@ 2006-05-22 17:56 ` kazu at gcc dot gnu dot org
2006-05-22 17:56 ` kazu at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: kazu at gcc dot gnu dot org @ 2006-05-22 17:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from kazu at gcc dot gnu dot org 2006-05-22 17:56 -------
Subject: Bug 27266
Author: kazu
Date: Mon May 22 17:55:53 2006
New Revision: 113987
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=113987
Log:
gcc/
PR target/27266
* config/i386/i386.c (ix86_expand_branch): Jump to simple if
ix86_compare_emitted is non-NULL.
gcc/testsuite/
PR target/27266
* gcc.target/i386/pr27266.c: New.
Added:
trunk/gcc/testsuite/gcc.target/i386/pr27266.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/i386/i386.c
trunk/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
* [Bug target/27266] [4.2 Regression] syncronization primitives cause ICE with -march=pentium or better
2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
` (9 preceding siblings ...)
2006-05-22 17:56 ` kazu at gcc dot gnu dot org
@ 2006-05-22 17:56 ` kazu at gcc dot gnu dot org
10 siblings, 0 replies; 12+ messages in thread
From: kazu at gcc dot gnu dot org @ 2006-05-22 17:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from kazu at gcc dot gnu dot org 2006-05-22 17:56 -------
Checked in a patch.
--
kazu at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27266
^ permalink raw reply [flat|nested] 12+ messages in thread
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2006-04-23 9:55 [Bug c/27266] New: syncronization primitives cause ICE with -march=pentium or better rask at sygehus dot dk
2006-04-23 14:46 ` [Bug c/27266] " rask at sygehus dot dk
2006-04-23 16:09 ` [Bug target/27266] [4.2 Regression] " pinskia at gcc dot gnu dot org
2006-04-23 16:10 ` pinskia at gcc dot gnu dot org
2006-05-08 7:51 ` pinskia at gcc dot gnu dot org
2006-05-09 23:57 ` janis at gcc dot gnu dot org
2006-05-20 8:01 ` kazu at gcc dot gnu dot org
2006-05-20 8:43 ` kazu at gcc dot gnu dot org
2006-05-20 19:41 ` kazu at gcc dot gnu dot org
2006-05-22 17:38 ` rth at gcc dot gnu dot org
2006-05-22 17:56 ` kazu at gcc dot gnu dot org
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