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* [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
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