public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug middle-end/48353] New: Bootstrap fail due to invalid register pair being assigned to pseudo
@ 2011-03-30 7:18 krebbel at gcc dot gnu.org
2011-03-30 7:25 ` [Bug middle-end/48353] " krebbel at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: krebbel at gcc dot gnu.org @ 2011-03-30 7:18 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48353
Summary: Bootstrap fail due to invalid register pair being
assigned to pseudo
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: krebbel@gcc.gnu.org
Created attachment 23811
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23811
testcase
Compiling the attached testcase with -O2 produces an invalid divide
instruction:
dsgfr %r7,%r1
The first parameter needs to an even numbered register.
from ira dump:
Try Assign 103(a10), cost=226: reassign to 7
changing reg in insn 50
Register 93 now in 3.
Register 103 now in 7.
(insn 50 40 62 4 (set (reg:TI 7 %r7 [103])
(ior:TI (ashift:TI (zero_extend:TI (mod:DI (reg:DI 8 %r8 [99])
(sign_extend:DI (reg/v:SI 1 %r1 [orig:49 copy_nregs ]
[49]))))
(const_int 64 [0x40]))
(zero_extend:TI (div:DI (reg:DI 8 %r8 [99])
(sign_extend:DI (reg/v:SI 1 %r1 [orig:49 copy_nregs ]
[49])))))) t.c:32 380 {divmodtisi3}
(nil))
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/48353] Bootstrap fail due to invalid register pair being assigned to pseudo
2011-03-30 7:18 [Bug middle-end/48353] New: Bootstrap fail due to invalid register pair being assigned to pseudo krebbel at gcc dot gnu.org
@ 2011-03-30 7:25 ` krebbel at gcc dot gnu.org
2011-03-30 7:29 ` krebbel at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: krebbel at gcc dot gnu.org @ 2011-03-30 7:25 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48353
--- Comment #1 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2011-03-30 06:52:58 UTC ---
Created attachment 23812
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=23812
Detailed IRA dump
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/48353] Bootstrap fail due to invalid register pair being assigned to pseudo
2011-03-30 7:18 [Bug middle-end/48353] New: Bootstrap fail due to invalid register pair being assigned to pseudo krebbel at gcc dot gnu.org
2011-03-30 7:25 ` [Bug middle-end/48353] " krebbel at gcc dot gnu.org
@ 2011-03-30 7:29 ` krebbel at gcc dot gnu.org
2011-03-30 9:26 ` [Bug middle-end/48353] [4.7 Regression] " rguenth at gcc dot gnu.org
2011-03-30 14:53 ` krebbel at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: krebbel at gcc dot gnu.org @ 2011-03-30 7:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48353
Andreas Krebbel <krebbel at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
CC| |vmakarov at redhat dot com
--- Comment #2 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2011-03-30 06:54:18 UTC ---
I suspect that this has to do with the recent IRA changes. Adding Vladimir to
cc.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/48353] [4.7 Regression] Bootstrap fail due to invalid register pair being assigned to pseudo
2011-03-30 7:18 [Bug middle-end/48353] New: Bootstrap fail due to invalid register pair being assigned to pseudo krebbel at gcc dot gnu.org
2011-03-30 7:25 ` [Bug middle-end/48353] " krebbel at gcc dot gnu.org
2011-03-30 7:29 ` krebbel at gcc dot gnu.org
@ 2011-03-30 9:26 ` rguenth at gcc dot gnu.org
2011-03-30 14:53 ` krebbel at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2011-03-30 9:26 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48353
Richard Guenther <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.7.0
Summary|Bootstrap fail due to |[4.7 Regression] Bootstrap
|invalid register pair being |fail due to invalid
|assigned to pseudo |register pair being
| |assigned to pseudo
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/48353] [4.7 Regression] Bootstrap fail due to invalid register pair being assigned to pseudo
2011-03-30 7:18 [Bug middle-end/48353] New: Bootstrap fail due to invalid register pair being assigned to pseudo krebbel at gcc dot gnu.org
` (2 preceding siblings ...)
2011-03-30 9:26 ` [Bug middle-end/48353] [4.7 Regression] " rguenth at gcc dot gnu.org
@ 2011-03-30 14:53 ` krebbel at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: krebbel at gcc dot gnu.org @ 2011-03-30 14:53 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48353
Andreas Krebbel <krebbel at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |RESOLVED
Resolution| |DUPLICATE
--- Comment #3 from Andreas Krebbel <krebbel at gcc dot gnu.org> 2011-03-30 14:24:29 UTC ---
This has already been fixed. Most likely while fixing the issue for ARM in
#48336.
*** This bug has been marked as a duplicate of bug 48336 ***
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2011-03-30 14:24 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2011-03-30 7:18 [Bug middle-end/48353] New: Bootstrap fail due to invalid register pair being assigned to pseudo krebbel at gcc dot gnu.org
2011-03-30 7:25 ` [Bug middle-end/48353] " krebbel at gcc dot gnu.org
2011-03-30 7:29 ` krebbel at gcc dot gnu.org
2011-03-30 9:26 ` [Bug middle-end/48353] [4.7 Regression] " rguenth at gcc dot gnu.org
2011-03-30 14:53 ` krebbel at gcc dot gnu.org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).