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* [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
@ 2005-10-24 1:02 pbrook at gcc dot gnu dot org
2005-10-24 1:33 ` [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] " pbrook at gcc dot gnu dot org
` (13 more replies)
0 siblings, 14 replies; 15+ messages in thread
From: pbrook at gcc dot gnu dot org @ 2005-10-24 1:02 UTC (permalink / raw)
To: gcc-bugs
long long foo(void)
{
long long unsigned s=0;
long long unsigned b;
for (b = 0; b++, s == 0; )
{
s = b;
}
return s;
}
Compiled with -O2 -funroll-all-loops gives
internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
The problematic line is:
gcc_assert (rtx_equal_p (PATTERN (insn), PATTERN (orig_insn)));
And PATTERN(insn) is
(parallel [
(set (reg/v:DI 32 [ b ])
(plus:DI (reg/v:DI 32 [ b ])
(const_int 1 [0x1])))
(clobber (scratch:SI))
])
This fails because rtx_equal_p thinks the two (scratch:SI) are different
scratch registers, and returns 0.
--
Summary: internal compiler error: in apply_opt_in_copies, at
loop-unroll.c:2122
Product: gcc
Version: 4.1.0
Status: UNCONFIRMED
Keywords: ice-checking
Severity: normal
Priority: P2
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: pbrook at gcc dot gnu dot org
GCC target triplet: m68k-elf
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
@ 2005-10-24 1:33 ` pbrook at gcc dot gnu dot org
2005-10-24 1:35 ` pinskia at gcc dot gnu dot org
` (12 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pbrook at gcc dot gnu dot org @ 2005-10-24 1:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pbrook at gcc dot gnu dot org 2005-10-24 01:33 -------
Original testcase above is reduced from
gcc.c-torture/execute/920501-6.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
2005-10-24 1:33 ` [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] " pbrook at gcc dot gnu dot org
@ 2005-10-24 1:35 ` pinskia at gcc dot gnu dot org
2005-10-30 23:21 ` pinskia at gcc dot gnu dot org
` (11 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-10-24 1:35 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from pinskia at gcc dot gnu dot org 2005-10-24 01:35 -------
I should mention why I marked this as a regression. loop-unroll.c is new in
3.4.x.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
2005-10-24 1:33 ` [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] " pbrook at gcc dot gnu dot org
2005-10-24 1:35 ` pinskia at gcc dot gnu dot org
@ 2005-10-30 23:21 ` pinskia at gcc dot gnu dot org
2005-11-06 4:25 ` kazu at gcc dot gnu dot org
` (10 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-10-30 23:21 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P2 |P5
Target Milestone|--- |4.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (2 preceding siblings ...)
2005-10-30 23:21 ` pinskia at gcc dot gnu dot org
@ 2005-11-06 4:25 ` kazu at gcc dot gnu dot org
2005-11-06 12:23 ` pbrook at gcc dot gnu dot org
` (9 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: kazu at gcc dot gnu dot org @ 2005-11-06 4:25 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from kazu at gcc dot gnu dot org 2005-11-06 04:25 -------
Not reproducible using x86_64-pc-linux-gnu X m68k-none-elf.
Paul, is this still reproducible?
I also tried, gcc.c-torture/execute/920501-6.c, but I didn't get any ICE.
--
kazu at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |kazu at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (3 preceding siblings ...)
2005-11-06 4:25 ` kazu at gcc dot gnu dot org
@ 2005-11-06 12:23 ` pbrook at gcc dot gnu dot org
2005-11-11 23:48 ` janis at gcc dot gnu dot org
` (8 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pbrook at gcc dot gnu dot org @ 2005-11-06 12:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pbrook at gcc dot gnu dot org 2005-11-06 12:23 -------
Both still fail for me
Target: m68k-elf
Configured with: ../gcc/configure --prefix=/home/paul/arm --target=m68k-elf
--with-newlib --disable-shared --disable-threads --enable-languages=c,c++
Thread model: single
gcc version 4.1.0 20051106 (experimental)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (4 preceding siblings ...)
2005-11-06 12:23 ` pbrook at gcc dot gnu dot org
@ 2005-11-11 23:48 ` janis at gcc dot gnu dot org
2005-11-12 5:48 ` pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: janis at gcc dot gnu dot org @ 2005-11-11 23:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from janis at gcc dot gnu dot org 2005-11-11 23:48 -------
A regression hunt using an m68k-elf cross compiler on powerpc-linux shows
that the test failure begins with this patch:
r87487 | rakdver | 2004-09-14 08:05:46 +0000 (Tue, 14 Sep 2004) | 17 lines
* Makefile.in (loop-unroll.o): Add HASHTAB_H and RECOG_H dependency.
* basic-block.h (struct reorder_block_def): Add copy_number field.
* cfgloop.h (biv_p): Declare.
* cfgloopmanip.c (duplicate_loop_to_header_edge): Set copy_number.
* common.opt (fsplit-ivs-in-unroller): New flag.
* loop-iv.c (biv_p): New function.
* loop-unroll.c: Include hashtab.h and recog.h.
(struct iv_to_split, struct split_ivs_info): New types.
(analyze_ivs_to_split, si_info_start_duplication, split_ivs_in_copies,
free_si_info, si_info_hash, si_info_eq, analyze_iv_to_split_insn,
determine_split_iv_delta, get_ivts_expr, allocate_basic_variable,
insert_base_initialization, split_iv): New functions.
(peel_loop_completely, unroll_loop_constant_iterations,
unroll_loop_runtime_iterations, peel_loop_simple, unroll_loop_stupid):
Use them.
* doc/invoke.texi (-fsplit-ivs-in-unroller): Document.
http://gcc.gnu.org/viewcvs?view=rev&rev=87487
--
janis at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rakdver at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (5 preceding siblings ...)
2005-11-11 23:48 ` janis at gcc dot gnu dot org
@ 2005-11-12 5:48 ` pinskia at gcc dot gnu dot org
2005-11-13 10:12 ` rakdver at gcc dot gnu dot org
` (6 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-11-12 5:48 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2005-11-12 05:48:22
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (6 preceding siblings ...)
2005-11-12 5:48 ` pinskia at gcc dot gnu dot org
@ 2005-11-13 10:12 ` rakdver at gcc dot gnu dot org
2005-11-18 10:31 ` rakdver at gcc dot gnu dot org
` (5 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2005-11-13 10:12 UTC (permalink / raw)
To: gcc-bugs
--
rakdver at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |rakdver at gcc dot gnu dot
|dot org |org
Status|NEW |ASSIGNED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (7 preceding siblings ...)
2005-11-13 10:12 ` rakdver at gcc dot gnu dot org
@ 2005-11-18 10:31 ` rakdver at gcc dot gnu dot org
2005-11-18 15:45 ` [Bug rtl-optimization/24497] [3.4/4.0 " pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: rakdver at gcc dot gnu dot org @ 2005-11-18 10:31 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rakdver at gcc dot gnu dot org 2005-11-18 10:31 -------
Subject: Bug 24497
Author: rakdver
Date: Fri Nov 18 10:31:45 2005
New Revision: 107171
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=107171
Log:
PR rtl-optimization/24497
* loop-unroll.c (apply_opt_in_copies): Do not verify equality of
the copied insn.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/loop-unroll.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (8 preceding siblings ...)
2005-11-18 10:31 ` rakdver at gcc dot gnu dot org
@ 2005-11-18 15:45 ` pinskia at gcc dot gnu dot org
2006-02-27 14:12 ` steven at gcc dot gnu dot org
` (3 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2005-11-18 15:45 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.1.0 |4.0.3
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (9 preceding siblings ...)
2005-11-18 15:45 ` [Bug rtl-optimization/24497] [3.4/4.0 " pinskia at gcc dot gnu dot org
@ 2006-02-27 14:12 ` steven at gcc dot gnu dot org
2006-03-11 3:22 ` mmitchel at gcc dot gnu dot org
` (2 subsequent siblings)
13 siblings, 0 replies; 15+ messages in thread
From: steven at gcc dot gnu dot org @ 2006-02-27 14:12 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from steven at gcc dot gnu dot org 2006-02-27 14:12 -------
Was this fixed with the patch in comment #6?
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [3.4/4.0 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (10 preceding siblings ...)
2006-02-27 14:12 ` steven at gcc dot gnu dot org
@ 2006-03-11 3:22 ` mmitchel at gcc dot gnu dot org
2006-08-11 7:34 ` [Bug rtl-optimization/24497] [4.0 " ebotcazou at gcc dot gnu dot org
2007-02-03 15:47 ` gdr at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: mmitchel at gcc dot gnu dot org @ 2006-03-11 3:22 UTC (permalink / raw)
To: gcc-bugs
--
mmitchel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.0.3 |4.0.4
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [4.0 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (11 preceding siblings ...)
2006-03-11 3:22 ` mmitchel at gcc dot gnu dot org
@ 2006-08-11 7:34 ` ebotcazou at gcc dot gnu dot org
2007-02-03 15:47 ` gdr at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: ebotcazou at gcc dot gnu dot org @ 2006-08-11 7:34 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from ebotcazou at gcc dot gnu dot org 2006-08-11 07:33 -------
Paul, could you update the status of this PR? Thanks in advance.
--
ebotcazou at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu dot
| |org
Status|ASSIGNED |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug rtl-optimization/24497] [4.0 Regression] internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122
2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
` (12 preceding siblings ...)
2006-08-11 7:34 ` [Bug rtl-optimization/24497] [4.0 " ebotcazou at gcc dot gnu dot org
@ 2007-02-03 15:47 ` gdr at gcc dot gnu dot org
13 siblings, 0 replies; 15+ messages in thread
From: gdr at gcc dot gnu dot org @ 2007-02-03 15:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from gdr at gcc dot gnu dot org 2007-02-03 15:47 -------
Fixed in GCC-4.1.0 and higher.
--
gdr at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
Target Milestone|4.0.4 |4.1.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24497
^ permalink raw reply [flat|nested] 15+ messages in thread
end of thread, other threads:[~2007-02-03 15:47 UTC | newest]
Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
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2005-10-24 1:02 [Bug rtl-optimization/24497] New: internal compiler error: in apply_opt_in_copies, at loop-unroll.c:2122 pbrook at gcc dot gnu dot org
2005-10-24 1:33 ` [Bug rtl-optimization/24497] [3.4/4.0/4.1 Regression] " pbrook at gcc dot gnu dot org
2005-10-24 1:35 ` pinskia at gcc dot gnu dot org
2005-10-30 23:21 ` pinskia at gcc dot gnu dot org
2005-11-06 4:25 ` kazu at gcc dot gnu dot org
2005-11-06 12:23 ` pbrook at gcc dot gnu dot org
2005-11-11 23:48 ` janis at gcc dot gnu dot org
2005-11-12 5:48 ` pinskia at gcc dot gnu dot org
2005-11-13 10:12 ` rakdver at gcc dot gnu dot org
2005-11-18 10:31 ` rakdver at gcc dot gnu dot org
2005-11-18 15:45 ` [Bug rtl-optimization/24497] [3.4/4.0 " pinskia at gcc dot gnu dot org
2006-02-27 14:12 ` steven at gcc dot gnu dot org
2006-03-11 3:22 ` mmitchel at gcc dot gnu dot org
2006-08-11 7:34 ` [Bug rtl-optimization/24497] [4.0 " ebotcazou at gcc dot gnu dot org
2007-02-03 15:47 ` gdr at gcc dot gnu dot org
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