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* [Bug tree-optimization/50873] New: The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE
@ 2011-10-26 13:45 mgretton at sourceware dot org
2011-10-27 8:44 ` [Bug tree-optimization/50873] " irar at il dot ibm.com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: mgretton at sourceware dot org @ 2011-10-26 13:45 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50873
Bug #: 50873
Summary: The fix to PR50730 causes
gcc.c-torture/unsorted/dilayout.c to ICE
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: mgretton@sourceware.org
CC: irar@il.ibm.com
Target: arm*-*-*
The fix to PR50730 (revision 180367 -
http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180367) causes the test
gcc.c-torture/unsorted/dilayout.c to ICE at -O3.
A reduced test case is:
$ cat test.c
/* arm-none-eabi-gcc -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=soft -O3 test.c */
struct ii
{
int a;
int b;
};
struct foo
{
int a;
struct ii ab;
};
struct ii
foo (int *p, struct foo a)
{
p[0] = a.a;
p[1] = a.ab.a;
}
/* end of test.c. */
$ arm-none-eabi-gcc -mcpu=cortex-a9 -mfpu=neon -mfloat-abi=soft -O3 test.c
test.c: In function 'foo':
test.c:15:11: internal compiler error: in expand_insn, at optabs.c:7693
-fno-tree-vectorize causes the issue to go away.
The issue still exists in revision 180524
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug tree-optimization/50873] The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE 2011-10-26 13:45 [Bug tree-optimization/50873] New: The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE mgretton at sourceware dot org @ 2011-10-27 8:44 ` irar at il dot ibm.com 2011-10-27 13:31 ` mgretton at sourceware dot org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: irar at il dot ibm.com @ 2011-10-27 8:44 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50873 Ira Rosen <irar at il dot ibm.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2011-10-27 Ever Confirmed|0 |1 --- Comment #1 from Ira Rosen <irar at il dot ibm.com> 2011-10-27 08:44:32 UTC --- I see this too, but I don't think it's my patch's fault. I reverted it and the reduced test still failed. The patch makes no difference for this basic block - it gets vectorized with or without it. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/50873] The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE 2011-10-26 13:45 [Bug tree-optimization/50873] New: The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE mgretton at sourceware dot org 2011-10-27 8:44 ` [Bug tree-optimization/50873] " irar at il dot ibm.com @ 2011-10-27 13:31 ` mgretton at sourceware dot org 2011-12-07 11:46 ` rsandifo at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: mgretton at sourceware dot org @ 2011-10-27 13:31 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50873 --- Comment #2 from Matthew Gretton-Dann <mgretton at sourceware dot org> 2011-10-27 13:31:27 UTC --- (In reply to comment #1) > I see this too, but I don't think it's my patch's fault. I reverted it and the > reduced test still failed. The patch makes no difference for this basic block - > it gets vectorized with or without it. Apologies if I've miss labelled this issue - git bisect suggested that r180367 was where the issue was introduced. I will take another look this afternoon to see if I misread the output and it was another check-in nearby. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/50873] The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE 2011-10-26 13:45 [Bug tree-optimization/50873] New: The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE mgretton at sourceware dot org 2011-10-27 8:44 ` [Bug tree-optimization/50873] " irar at il dot ibm.com 2011-10-27 13:31 ` mgretton at sourceware dot org @ 2011-12-07 11:46 ` rsandifo at gcc dot gnu.org 2011-12-12 15:59 ` rsandifo at gcc dot gnu.org 2012-01-18 9:47 ` rsandifo at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rsandifo at gcc dot gnu.org @ 2011-12-07 11:46 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50873 rsandifo@gcc.gnu.org <rsandifo at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED CC| |rsandifo at gcc dot gnu.org AssignedTo|unassigned at gcc dot |rsandifo at gcc dot gnu.org |gnu.org | --- Comment #3 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 2011-12-07 11:45:40 UTC --- We need to tweak maybe_legitimize_operand_same_code (thanks Ramana for the heads-up). Testing a fix. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/50873] The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE 2011-10-26 13:45 [Bug tree-optimization/50873] New: The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE mgretton at sourceware dot org ` (2 preceding siblings ...) 2011-12-07 11:46 ` rsandifo at gcc dot gnu.org @ 2011-12-12 15:59 ` rsandifo at gcc dot gnu.org 2012-01-18 9:47 ` rsandifo at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rsandifo at gcc dot gnu.org @ 2011-12-12 15:59 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50873 --- Comment #4 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 2011-12-12 15:18:29 UTC --- Author: rsandifo Date: Mon Dec 12 15:18:24 2011 New Revision: 182244 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=182244 Log: gcc/ PR middle-end/50873 * optabs.c (maybe_legitimize_operand_same_code): Use copy_to_mode_reg instead of force_reg. Do nothing if the address is already a non-virtual pseudo register. Modified: trunk/gcc/ChangeLog trunk/gcc/optabs.c ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug tree-optimization/50873] The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE 2011-10-26 13:45 [Bug tree-optimization/50873] New: The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE mgretton at sourceware dot org ` (3 preceding siblings ...) 2011-12-12 15:59 ` rsandifo at gcc dot gnu.org @ 2012-01-18 9:47 ` rsandifo at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: rsandifo at gcc dot gnu.org @ 2012-01-18 9:47 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50873 rsandifo@gcc.gnu.org <rsandifo at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|ASSIGNED |RESOLVED Resolution| |FIXED --- Comment #5 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 2012-01-18 09:32:44 UTC --- Fixed on trunk. ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-01-18 9:34 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-10-26 13:45 [Bug tree-optimization/50873] New: The fix to PR50730 causes gcc.c-torture/unsorted/dilayout.c to ICE mgretton at sourceware dot org 2011-10-27 8:44 ` [Bug tree-optimization/50873] " irar at il dot ibm.com 2011-10-27 13:31 ` mgretton at sourceware dot org 2011-12-07 11:46 ` rsandifo at gcc dot gnu.org 2011-12-12 15:59 ` rsandifo at gcc dot gnu.org 2012-01-18 9:47 ` rsandifo at gcc dot gnu.org
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