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* [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu
@ 2013-12-04 18:54 su at cs dot ucdavis.edu
2013-12-04 23:21 ` [Bug tree-optimization/59388] [4.9 Regression] " mpolacek at gcc dot gnu.org
` (9 more replies)
0 siblings, 10 replies; 11+ messages in thread
From: su at cs dot ucdavis.edu @ 2013-12-04 18:54 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
Bug ID: 59388
Summary: ICE on valid code at -O1 and above on x86_64-linux-gnu
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: su at cs dot ucdavis.edu
The following code causes an ICE when compiled with the current gcc trunk at
-O1 and above on x86_64-linux-gnu in both 32-bit and 64-bit modes.
It is a regression from 4.8.x.
$ gcc-trunk -v
Using built-in specs.
COLLECT_GCC=gcc-trunk
COLLECT_LTO_WRAPPER=/usr/local/gcc-trunk/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-trunk/configure --prefix=/usr/local/gcc-trunk
--enable-languages=c,c++ --disable-werror --enable-multilib
Thread model: posix
gcc version 4.9.0 20131204 (experimental) [trunk revision 205673] (GCC)
$
$ gcc-trunk -O0 small.c; a.out
$ gcc-4.8 -O1 small.c; a.out
$
$ gcc-trunk -O1 small.c
small.c: In function ‘main’:
small.c:9:1: error: definition in block 2 follows the use
main ()
^
for SSA_NAME: _2 in statement:
_8 = _2;
small.c:9:1: internal compiler error: verify_ssa failed
0xb56fcc verify_ssa(bool)
../../gcc-trunk/gcc/tree-ssa.c:1096
0x8fa8be execute_function_todo
../../gcc-trunk/gcc/passes.c:1844
0x8fb2b3 execute_todo
../../gcc-trunk/gcc/passes.c:1877
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
$
------------------------
int a;
struct
{
unsigned int f:1;
} b;
int
main ()
{
a = (0 < b.f) | b.f;
return a;
}
>From gcc-bugs-return-436663-listarch-gcc-bugs=gcc.gnu.org@gcc.gnu.org Wed Dec 04 19:00:19 2013
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From: "mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/59388] [4.9 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
Date: Wed, 04 Dec 2013 19:00:00 -0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 4.9.0
X-Bugzilla-Keywords:
X-Bugzilla-Severity: normal
X-Bugzilla-Who: mpolacek at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: 4.9.0
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Message-ID: <bug-59388-4-YfKgrduFic@http.gcc.gnu.org/bugzilla/>
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http://gcc.gnu.org/bugzilla/show_bug.cgi?idY388
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2013-12-04
CC| |mpolacek at gcc dot gnu.org
Known to work| |4.8.2
Target Milestone|--- |4.9.0
Summary|ICE on valid code at -O1 |[4.9 Regression] ICE on
|and above on |valid code at -O1 and above
|x86_64-linux-gnu |on x86_64-linux-gnu
Ever confirmed|0 |1
Known to fail| |4.9.0
--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed, -fno-tree-reassoc makes the ICE go away.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.9 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
@ 2013-12-04 23:21 ` mpolacek at gcc dot gnu.org
2013-12-05 10:59 ` [Bug tree-optimization/59388] [4.7/4.8/4.9 " jakub at gcc dot gnu.org
` (8 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2013-12-04 23:21 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7/4.8/4.9 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
2013-12-04 23:21 ` [Bug tree-optimization/59388] [4.9 Regression] " mpolacek at gcc dot gnu.org
@ 2013-12-05 10:59 ` jakub at gcc dot gnu.org
2013-12-06 17:40 ` jakub at gcc dot gnu.org
` (7 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-12-05 10:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work|4.8.2 |
Summary|[4.9 Regression] ICE on |[4.7/4.8/4.9 Regression]
|valid code at -O1 and above |ICE on valid code at -O1
|on x86_64-linux-gnu |and above on
| |x86_64-linux-gnu
Known to fail| |4.8.2
--- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This really is 4.7+ regression, you just need --enable-checking=yes compiler on
the branches to reproduce (otherwise it is a silent wrong-code ? ).
I'll have a look soon.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7/4.8/4.9 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
2013-12-04 23:21 ` [Bug tree-optimization/59388] [4.9 Regression] " mpolacek at gcc dot gnu.org
2013-12-05 10:59 ` [Bug tree-optimization/59388] [4.7/4.8/4.9 " jakub at gcc dot gnu.org
@ 2013-12-06 17:40 ` jakub at gcc dot gnu.org
2013-12-06 17:41 ` jakub at gcc dot gnu.org
` (6 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-12-06 17:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org
--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31392
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31392&action=edit
gcc49-pr59388.patch
Untested 4.9 fix.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7/4.8/4.9 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
` (2 preceding siblings ...)
2013-12-06 17:40 ` jakub at gcc dot gnu.org
@ 2013-12-06 17:41 ` jakub at gcc dot gnu.org
2013-12-06 21:00 ` jakub at gcc dot gnu.org
` (5 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-12-06 17:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 31393
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31393&action=edit
gcc48-pr59388.patch
Untested 4.8.x patch.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7/4.8/4.9 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
` (3 preceding siblings ...)
2013-12-06 17:41 ` jakub at gcc dot gnu.org
@ 2013-12-06 21:00 ` jakub at gcc dot gnu.org
2013-12-06 21:06 ` jakub at gcc dot gnu.org
` (4 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-12-06 21:00 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec 6 21:00:49 2013
New Revision: 205761
URL: http://gcc.gnu.org/viewcvs?rev=205761&root=gcc&view=rev
Log:
PR tree-optimization/59388
* tree-ssa-reassoc.c (update_range_test): If op == range->exp,
gimplify tem after stmt rather than before it.
* gcc.c-torture/execute/pr59388.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr59388.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-reassoc.c
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7/4.8/4.9 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
` (4 preceding siblings ...)
2013-12-06 21:00 ` jakub at gcc dot gnu.org
@ 2013-12-06 21:06 ` jakub at gcc dot gnu.org
2013-12-06 21:08 ` [Bug tree-optimization/59388] [4.7 " jakub at gcc dot gnu.org
` (3 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-12-06 21:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Author: jakub
Date: Fri Dec 6 21:06:13 2013
New Revision: 205762
URL: http://gcc.gnu.org/viewcvs?rev=205762&root=gcc&view=rev
Log:
PR tree-optimization/59388
* tree-ssa-reassoc.c (update_range_test): If op == range->exp,
gimplify tem after stmt rather than before it.
* gcc.c-torture/execute/pr59388.c: New test.
Added:
branches/gcc-4_8-branch/gcc/testsuite/gcc.c-torture/execute/pr59388.c
Modified:
branches/gcc-4_8-branch/gcc/ChangeLog
branches/gcc-4_8-branch/gcc/testsuite/ChangeLog
branches/gcc-4_8-branch/gcc/tree-ssa-reassoc.c
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
` (5 preceding siblings ...)
2013-12-06 21:06 ` jakub at gcc dot gnu.org
@ 2013-12-06 21:08 ` jakub at gcc dot gnu.org
2014-01-30 15:43 ` trippels at gcc dot gnu.org
` (2 subsequent siblings)
9 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2013-12-06 21:08 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.8.3, 4.9.0
Summary|[4.7/4.8/4.9 Regression] |[4.7 Regression] ICE on
|ICE on valid code at -O1 |valid code at -O1 and above
|and above on |on x86_64-linux-gnu
|x86_64-linux-gnu |
Known to fail|4.9.0 |
--- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Fixed for 4.8.3+ so far.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
` (6 preceding siblings ...)
2013-12-06 21:08 ` [Bug tree-optimization/59388] [4.7 " jakub at gcc dot gnu.org
@ 2014-01-30 15:43 ` trippels at gcc dot gnu.org
2014-05-26 13:59 ` rguenth at gcc dot gnu.org
2014-06-12 13:33 ` rguenth at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: trippels at gcc dot gnu.org @ 2014-01-30 15:43 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
Markus Trippelsdorf <trippels at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |trippels at gcc dot gnu.org
Target Milestone|4.9.0 |4.7.4
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
` (7 preceding siblings ...)
2014-01-30 15:43 ` trippels at gcc dot gnu.org
@ 2014-05-26 13:59 ` rguenth at gcc dot gnu.org
2014-06-12 13:33 ` rguenth at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-05-26 13:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |ice-checking, wrong-code
Priority|P1 |P2
Known to fail| |4.7.3
--- Comment #9 from Richard Biener <rguenth at gcc dot gnu.org> ---
Not sure why this was P1, dropping to P2.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug tree-optimization/59388] [4.7 Regression] ICE on valid code at -O1 and above on x86_64-linux-gnu
2013-12-04 18:54 [Bug tree-optimization/59388] New: ICE on valid code at -O1 and above on x86_64-linux-gnu su at cs dot ucdavis.edu
` (8 preceding siblings ...)
2014-05-26 13:59 ` rguenth at gcc dot gnu.org
@ 2014-06-12 13:33 ` rguenth at gcc dot gnu.org
9 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2014-06-12 13:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59388
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
Target Milestone|4.7.4 |4.8.3
Known to fail| |4.7.4
--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed for 4.8.3.
^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2014-06-12 13:33 UTC | newest]
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2013-12-04 23:21 ` [Bug tree-optimization/59388] [4.9 Regression] " mpolacek at gcc dot gnu.org
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