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* [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2)
@ 2010-11-07 20:37 ebotcazou at gcc dot gnu.org
2010-11-07 20:38 ` [Bug tree-optimization/46351] " ebotcazou at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: ebotcazou at gcc dot gnu.org @ 2010-11-07 20:37 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351
Summary: [4.6 regression] incorrect scalarization (2)
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: ebotcazou@gcc.gnu.org
The fix for PR tree-opt/44972 has introduced regressions in Ada, specifically:
(sra_modify_assign): Removed ref_expr_for_all_replacements_p checks,
checks for return values of build_ref_for_offset.
This is a second example, which ICEs in tree-sra.c directly because of an
offset not multiple of a byte:
eric@atlantis:~/build/gcc/native> gcc/xgcc -Bgcc -S opt10.adb -O2
+===========================GNAT BUG DETECTED==============================+
| 4.6.0 20101106 (experimental) [trunk revision 166404] (x86_64-suse-linux-gnu)
GCC error:|
| in build_ref_for_offset, at tree-sra.c:1345 |
| Error detected around opt10.adb:6:1
This is again a bitfield with aggregate type. I think that the checks of the
return values should be reinstated somehow or other.
The testcase is suitable for addition to the gnat.dg testsuite.
^ permalink raw reply [flat|nested] 9+ messages in thread* [Bug tree-optimization/46351] [4.6 regression] incorrect scalarization (2) 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org @ 2010-11-07 20:38 ` ebotcazou at gcc dot gnu.org 2010-11-07 20:38 ` ebotcazou at gcc dot gnu.org ` (6 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: ebotcazou at gcc dot gnu.org @ 2010-11-07 20:38 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351 --- Comment #1 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-11-07 20:38:11 UTC --- Created attachment 22312 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22312 opt10.adb ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/46351] [4.6 regression] incorrect scalarization (2) 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org 2010-11-07 20:38 ` [Bug tree-optimization/46351] " ebotcazou at gcc dot gnu.org @ 2010-11-07 20:38 ` ebotcazou at gcc dot gnu.org 2010-11-07 23:02 ` rguenth at gcc dot gnu.org ` (5 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: ebotcazou at gcc dot gnu.org @ 2010-11-07 20:38 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351 --- Comment #2 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-11-07 20:38:43 UTC --- Created attachment 22313 --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22313 opt10_pkg.ads ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/46351] [4.6 regression] incorrect scalarization (2) 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org 2010-11-07 20:38 ` [Bug tree-optimization/46351] " ebotcazou at gcc dot gnu.org 2010-11-07 20:38 ` ebotcazou at gcc dot gnu.org @ 2010-11-07 23:02 ` rguenth at gcc dot gnu.org 2010-11-08 19:44 ` jamborm at gcc dot gnu.org ` (4 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: rguenth at gcc dot gnu.org @ 2010-11-07 23:02 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351 Richard Guenther <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jamborm at gcc dot gnu.org Target Milestone|--- |4.6.0 ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/46351] [4.6 regression] incorrect scalarization (2) 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org ` (2 preceding siblings ...) 2010-11-07 23:02 ` rguenth at gcc dot gnu.org @ 2010-11-08 19:44 ` jamborm at gcc dot gnu.org 2010-11-09 8:23 ` ebotcazou at gcc dot gnu.org ` (3 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: jamborm at gcc dot gnu.org @ 2010-11-08 19:44 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351 Martin Jambor <jamborm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |ASSIGNED Last reconfirmed| |2010.11.08 19:44:09 AssignedTo|unassigned at gcc dot |jamborm at gcc dot gnu.org |gnu.org | Ever Confirmed|0 |1 --- Comment #3 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-11-08 19:44:09 UTC --- Scary stuff. I will look into it nevertheless. ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/46351] [4.6 regression] incorrect scalarization (2) 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org ` (3 preceding siblings ...) 2010-11-08 19:44 ` jamborm at gcc dot gnu.org @ 2010-11-09 8:23 ` ebotcazou at gcc dot gnu.org 2010-11-09 17:25 ` jamborm at gcc dot gnu.org ` (2 subsequent siblings) 7 siblings, 0 replies; 9+ messages in thread From: ebotcazou at gcc dot gnu.org @ 2010-11-09 8:23 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351 --- Comment #4 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2010-11-09 08:23:18 UTC --- > Scary stuff. I will look into it nevertheless. Thanks. There are a couple of other similar cases in PR tree-opt/46349 and tree-opt/46377, although the latter is probably a duplicate of this one. ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/46351] [4.6 regression] incorrect scalarization (2) 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org ` (4 preceding siblings ...) 2010-11-09 8:23 ` ebotcazou at gcc dot gnu.org @ 2010-11-09 17:25 ` jamborm at gcc dot gnu.org 2010-11-10 12:52 ` jamborm at gcc dot gnu.org 2010-11-10 12:53 ` jamborm at gcc dot gnu.org 7 siblings, 0 replies; 9+ messages in thread From: jamborm at gcc dot gnu.org @ 2010-11-09 17:25 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351 --- Comment #5 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-11-09 17:24:50 UTC --- Patch submitted to the mailing list: http://gcc.gnu.org/ml/gcc-patches/2010-11/msg00933.html ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/46351] [4.6 regression] incorrect scalarization (2) 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org ` (5 preceding siblings ...) 2010-11-09 17:25 ` jamborm at gcc dot gnu.org @ 2010-11-10 12:52 ` jamborm at gcc dot gnu.org 2010-11-10 12:53 ` jamborm at gcc dot gnu.org 7 siblings, 0 replies; 9+ messages in thread From: jamborm at gcc dot gnu.org @ 2010-11-10 12:52 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351 --- Comment #6 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-11-10 12:52:32 UTC --- Author: jamborm Date: Wed Nov 10 12:52:27 2010 New Revision: 166535 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=166535 Log: 2010-11-10 Martin Jambor <mjambor@suse.cz> PR tree-optimization/46351 PR tree-optimization/46377 * tree-sra.c (type_internals_preclude_sra_p): Disqualify types with aggregate bit-fields. * testsuite/gnat.dg/opt10.adb: New file. * testsuite/gnat.dg/opt10_pkg.ads: Likewise. * testsuite/gnat.dg/opt11.adb: Likewise. * testsuite/gnat.dg/opt11.ads: Likewise. Added: trunk/gcc/testsuite/gnat.dg/opt10.adb trunk/gcc/testsuite/gnat.dg/opt10_pkg.ads trunk/gcc/testsuite/gnat.dg/opt11.adb trunk/gcc/testsuite/gnat.dg/opt11.ads Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-sra.c ^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug tree-optimization/46351] [4.6 regression] incorrect scalarization (2) 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org ` (6 preceding siblings ...) 2010-11-10 12:52 ` jamborm at gcc dot gnu.org @ 2010-11-10 12:53 ` jamborm at gcc dot gnu.org 7 siblings, 0 replies; 9+ messages in thread From: jamborm at gcc dot gnu.org @ 2010-11-10 12:53 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46351 Martin Jambor <jamborm at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #7 from Martin Jambor <jamborm at gcc dot gnu.org> 2010-11-10 12:53:27 UTC --- Fixed. ^ permalink raw reply [flat|nested] 9+ messages in thread
end of thread, other threads:[~2010-11-10 12:53 UTC | newest] Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2010-11-07 20:37 [Bug tree-optimization/46351] New: [4.6 regression] incorrect scalarization (2) ebotcazou at gcc dot gnu.org 2010-11-07 20:38 ` [Bug tree-optimization/46351] " ebotcazou at gcc dot gnu.org 2010-11-07 20:38 ` ebotcazou at gcc dot gnu.org 2010-11-07 23:02 ` rguenth at gcc dot gnu.org 2010-11-08 19:44 ` jamborm at gcc dot gnu.org 2010-11-09 8:23 ` ebotcazou at gcc dot gnu.org 2010-11-09 17:25 ` jamborm at gcc dot gnu.org 2010-11-10 12:52 ` jamborm at gcc dot gnu.org 2010-11-10 12:53 ` jamborm at gcc dot gnu.org
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