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* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
@ 2015-04-08 10:08 ` doko at gcc dot gnu.org
2015-04-08 10:12 ` rguenth at gcc dot gnu.org
` (9 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: doko at gcc dot gnu.org @ 2015-04-08 10:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
--- Comment #1 from Matthias Klose <doko at gcc dot gnu.org> ---
seen when building the dnaclust package, also seen in the qtbase-opensource-src
package. currently reducing
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
2015-04-08 10:08 ` [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf doko at gcc dot gnu.org
@ 2015-04-08 10:12 ` rguenth at gcc dot gnu.org
2015-04-08 11:03 ` ktkachov at gcc dot gnu.org
` (8 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: rguenth at gcc dot gnu.org @ 2015-04-08 10:12 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |5.0
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
2015-04-08 10:08 ` [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf doko at gcc dot gnu.org
2015-04-08 10:12 ` rguenth at gcc dot gnu.org
@ 2015-04-08 11:03 ` ktkachov at gcc dot gnu.org
2015-04-08 13:17 ` doko at gcc dot gnu.org
` (7 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-08 11:03 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2015-04-08
CC| |ktkachov at gcc dot gnu.org
Ever confirmed|0 |1
--- Comment #2 from ktkachov at gcc dot gnu.org ---
Confirmed with r221914.
A gcc from 27Mar works though for me.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
` (2 preceding siblings ...)
2015-04-08 11:03 ` ktkachov at gcc dot gnu.org
@ 2015-04-08 13:17 ` doko at gcc dot gnu.org
2015-04-08 15:59 ` ktkachov at gcc dot gnu.org
` (6 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: doko at gcc dot gnu.org @ 2015-04-08 13:17 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
--- Comment #3 from Matthias Klose <doko at gcc dot gnu.org> ---
Created attachment 35259
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35259&action=edit
reduced file
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
` (3 preceding siblings ...)
2015-04-08 13:17 ` doko at gcc dot gnu.org
@ 2015-04-08 15:59 ` ktkachov at gcc dot gnu.org
2015-04-08 16:28 ` ktkachov at gcc dot gnu.org
` (5 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-08 15:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ktkachov at gcc dot gnu.org
--- Comment #4 from ktkachov at gcc dot gnu.org ---
This looks similar to PR 64600.
The problem seems to be arm_canonicalize_comparison that
canonicalizes a comparison with 2147483647 (0x7fffffff)
into a comparison with that +1, that is 0x80000000 without properly
sign-extending it into 0xffffffff80000000 (which would make it -2147483648).
I have a fix, but it needs more testing
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
` (4 preceding siblings ...)
2015-04-08 15:59 ` ktkachov at gcc dot gnu.org
@ 2015-04-08 16:28 ` ktkachov at gcc dot gnu.org
2015-04-08 16:47 ` ktkachov at gcc dot gnu.org
` (4 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-08 16:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
--- Comment #5 from ktkachov at gcc dot gnu.org ---
(In reply to ktkachov from comment #4)
> This looks similar to PR 64600.
> The problem seems to be arm_canonicalize_comparison that
> canonicalizes a comparison with 2147483647 (0x7fffffff)
> into a comparison with that +1, that is 0x80000000 without properly
> sign-extending it into 0xffffffff80000000 (which would make it -2147483648).
That's not right logic, need to think a bit harder on what to do here...
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
` (5 preceding siblings ...)
2015-04-08 16:28 ` ktkachov at gcc dot gnu.org
@ 2015-04-08 16:47 ` ktkachov at gcc dot gnu.org
2015-04-10 7:08 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-08 16:47 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
--- Comment #6 from ktkachov at gcc dot gnu.org ---
(In reply to ktkachov from comment #5)
> (In reply to ktkachov from comment #4)
> > This looks similar to PR 64600.
> > The problem seems to be arm_canonicalize_comparison that
> > canonicalizes a comparison with 2147483647 (0x7fffffff)
> > into a comparison with that +1, that is 0x80000000 without properly
> > sign-extending it into 0xffffffff80000000 (which would make it -2147483648).
>
> That's not right logic, need to think a bit harder on what to do here...
err... Ignore this. I think doing the sign-extend here is the right thing to
do.
All these numbers close to INT_MIN/MAX are very fiddly :(
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
` (6 preceding siblings ...)
2015-04-08 16:47 ` ktkachov at gcc dot gnu.org
@ 2015-04-10 7:08 ` jakub at gcc dot gnu.org
2015-04-10 8:34 ` ktkachov at gcc dot gnu.org
` (2 subsequent siblings)
10 siblings, 0 replies; 11+ messages in thread
From: jakub at gcc dot gnu.org @ 2015-04-10 7:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jakub at gcc dot gnu.org
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
(In reply to ktkachov from comment #6)
> (In reply to ktkachov from comment #5)
> > (In reply to ktkachov from comment #4)
> > > This looks similar to PR 64600.
> > > The problem seems to be arm_canonicalize_comparison that
> > > canonicalizes a comparison with 2147483647 (0x7fffffff)
> > > into a comparison with that +1, that is 0x80000000 without properly
> > > sign-extending it into 0xffffffff80000000 (which would make it -2147483648).
> >
> > That's not right logic, need to think a bit harder on what to do here...
>
> err... Ignore this. I think doing the sign-extend here is the right thing to
> do.
> All these numbers close to INT_MIN/MAX are very fiddly :(
Any progress on this? We'd really like to build RC1 soon.
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
` (7 preceding siblings ...)
2015-04-10 7:08 ` jakub at gcc dot gnu.org
@ 2015-04-10 8:34 ` ktkachov at gcc dot gnu.org
2015-04-10 16:21 ` ktkachov at gcc dot gnu.org
2015-04-10 16:21 ` ktkachov at gcc dot gnu.org
10 siblings, 0 replies; 11+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-10 8:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
--- Comment #8 from ktkachov at gcc dot gnu.org ---
(In reply to Jakub Jelinek from comment #7)
> Any progress on this? We'd really like to build RC1 soon.
Was just doing some testing, patch posted at:
https://gcc.gnu.org/ml/gcc-patches/2015-04/msg00437.html
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
` (8 preceding siblings ...)
2015-04-10 8:34 ` ktkachov at gcc dot gnu.org
@ 2015-04-10 16:21 ` ktkachov at gcc dot gnu.org
2015-04-10 16:21 ` ktkachov at gcc dot gnu.org
10 siblings, 0 replies; 11+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-10 16:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
--- Comment #9 from ktkachov at gcc dot gnu.org ---
Author: ktkachov
Date: Fri Apr 10 16:20:35 2015
New Revision: 221976
URL: https://gcc.gnu.org/viewcvs?rev=221976&root=gcc&view=rev
Log:
[ARM] PR 65694: Properly sign-extend large numbers before passing to GEN_INT in
arm_canonicalize_comparison
PR target/65694
* config/arm/arm.c (arm_canonicalize_comparison): Use ARM_SIGN_EXTEND
when creating +1 values for SImode.
PR target/65694
* g++.dg/torture/pr65694.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/torture/pr65694.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/config/arm/arm.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 11+ messages in thread
* [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf
[not found] <bug-65694-4@http.gcc.gnu.org/bugzilla/>
` (9 preceding siblings ...)
2015-04-10 16:21 ` ktkachov at gcc dot gnu.org
@ 2015-04-10 16:21 ` ktkachov at gcc dot gnu.org
10 siblings, 0 replies; 11+ messages in thread
From: ktkachov at gcc dot gnu.org @ 2015-04-10 16:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65694
ktkachov at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #10 from ktkachov at gcc dot gnu.org ---
Fixed on trunk.
^ permalink raw reply [flat|nested] 11+ messages in thread
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2015-04-08 10:08 ` [Bug target/65694] [5 Regression] ICE (in decompose, at rtl.h:2007) on arm-linux-gnueabihf doko at gcc dot gnu.org
2015-04-08 10:12 ` rguenth at gcc dot gnu.org
2015-04-08 11:03 ` ktkachov at gcc dot gnu.org
2015-04-08 13:17 ` doko at gcc dot gnu.org
2015-04-08 15:59 ` ktkachov at gcc dot gnu.org
2015-04-08 16:28 ` ktkachov at gcc dot gnu.org
2015-04-08 16:47 ` ktkachov at gcc dot gnu.org
2015-04-10 7:08 ` jakub at gcc dot gnu.org
2015-04-10 8:34 ` ktkachov at gcc dot gnu.org
2015-04-10 16:21 ` ktkachov at gcc dot gnu.org
2015-04-10 16:21 ` ktkachov at gcc dot gnu.org
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