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* [Bug tree-optimization/55687] New: [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716
@ 2012-12-14 9:29 rguenth at gcc dot gnu.org
2012-12-14 9:29 ` [Bug tree-optimization/55687] " rguenth at gcc dot gnu.org
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-14 9:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55687
Bug #: 55687
Summary: [4.8 Regression] ICE in
hide_evolution_in_other_loops_than_loop, at
tree-chrec.c:716
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: rguenth@gcc.gnu.org
Target: i?86-*-*
Created attachment 28953
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=28953
preprocessed source
/usr/lib/gcc/i586-suse-linux/4.8/cc1 -fpreprocessed splashy_functions.i -quiet
-dumpbase splashy_functions.c -mtune=generic -march=i586 -auxbase-strip
splashy-splashy_functions.o -g -O2 -Wall -Werror -version -fomit-frame-pointer
-fmessage-length=0 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -o splashy_functions.s
GNU C (SUSE Linux) version 4.8.0 20121212 [trunk revision 194442]
(i586-suse-linux)
compiled by GNU C version 4.8.0 20121212 [trunk revision 194442], GMP
version 5.0.5, MPFR version 3.1.1, MPC version 1.0
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C (SUSE Linux) version 4.8.0 20121212 [trunk revision 194442]
(i586-suse-linux)
compiled by GNU C version 4.8.0 20121212 [trunk revision 194442], GMP
version 5.0.5, MPFR version 3.1.1, MPC version 1.0
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: e68fcd130690afd931631ae80bbb1d1f
splashy_functions.c: In function 'verbose_text_loop':
splashy_functions.c:1392:1: internal compiler error: in
hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716
}
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/55687] [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716
2012-12-14 9:29 [Bug tree-optimization/55687] New: [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716 rguenth at gcc dot gnu.org
@ 2012-12-14 9:29 ` rguenth at gcc dot gnu.org
2012-12-14 9:51 ` rguenth at gcc dot gnu.org
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-14 9:29 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55687
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |4.8.0
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/55687] [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716
2012-12-14 9:29 [Bug tree-optimization/55687] New: [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716 rguenth at gcc dot gnu.org
2012-12-14 9:29 ` [Bug tree-optimization/55687] " rguenth at gcc dot gnu.org
@ 2012-12-14 9:51 ` rguenth at gcc dot gnu.org
2012-12-14 11:06 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-14 9:51 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55687
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target|i?86-*-* |i?86-*-*, x86_64-*-*
Status|UNCONFIRMED |NEW
Last reconfirmed| |2012-12-14
Ever Confirmed|0 |1
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-14 09:50:57 UTC ---
Reduced testcase, fails at -O2
typedef struct _IO_FILE FILE;
typedef short gshort;
typedef struct _GString GString;
void verbose_text_loop (void *data)
{
FILE *dev_vcs;
char buf[81];
GString *buf_str;
gshort i, j;
while (1)
{
for (i = 1; i <= 7; i++)
{
while (__builtin_fgets_unlocked (buf, 81, dev_vcs))
{
for (j = 0; j < __builtin_strlen (buf); j++)
if (buf[j] != ' ')
break;
for (; j < __builtin_strlen (buf); j++)
g_string_append_c_inline (buf_str, buf[j]);
}
}
}
}
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/55687] [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716
2012-12-14 9:29 [Bug tree-optimization/55687] New: [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716 rguenth at gcc dot gnu.org
2012-12-14 9:29 ` [Bug tree-optimization/55687] " rguenth at gcc dot gnu.org
2012-12-14 9:51 ` rguenth at gcc dot gnu.org
@ 2012-12-14 11:06 ` rguenth at gcc dot gnu.org
2012-12-14 11:34 ` mpolacek at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-14 11:06 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55687
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |rguenth at gcc dot gnu.org
|gnu.org |
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-14 11:05:36 UTC ---
I'll have a look.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/55687] [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716
2012-12-14 9:29 [Bug tree-optimization/55687] New: [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716 rguenth at gcc dot gnu.org
` (2 preceding siblings ...)
2012-12-14 11:06 ` rguenth at gcc dot gnu.org
@ 2012-12-14 11:34 ` mpolacek at gcc dot gnu.org
2012-12-14 12:58 ` rguenth at gcc dot gnu.org
2012-12-14 12:59 ` rguenth at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: mpolacek at gcc dot gnu.org @ 2012-12-14 11:34 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55687
Marek Polacek <mpolacek at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |mpolacek at gcc dot gnu.org
--- Comment #3 from Marek Polacek <mpolacek at gcc dot gnu.org> 2012-12-14 11:34:24 UTC ---
More reduced.
void
foo (int c)
{
int buf[0];
short i, j;
while (1)
for (i = 0; i <= 1; i++)
while (--c)
{
for (; j < c; j++)
;
for (; j; j++)
bar (buf[j]);
}
}
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/55687] [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716
2012-12-14 9:29 [Bug tree-optimization/55687] New: [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716 rguenth at gcc dot gnu.org
` (3 preceding siblings ...)
2012-12-14 11:34 ` mpolacek at gcc dot gnu.org
@ 2012-12-14 12:58 ` rguenth at gcc dot gnu.org
2012-12-14 12:59 ` rguenth at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-14 12:58 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55687
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-14 12:57:36 UTC ---
Author: rguenth
Date: Fri Dec 14 12:57:27 2012
New Revision: 194498
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=194498
Log:
2012-12-14 Richard Biener <rguenther@suse.de>
PR tree-optimization/55687
* tree-chrec.h (no_evolution_in_loop_p): Properly use
tree_contains_chrecs.
* gcc.dg/torture/pr55687.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/torture/pr55687.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-chrec.h
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/55687] [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716
2012-12-14 9:29 [Bug tree-optimization/55687] New: [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716 rguenth at gcc dot gnu.org
` (4 preceding siblings ...)
2012-12-14 12:58 ` rguenth at gcc dot gnu.org
@ 2012-12-14 12:59 ` rguenth at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: rguenth at gcc dot gnu.org @ 2012-12-14 12:59 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55687
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-14 12:58:58 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 7+ messages in thread
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2012-12-14 9:29 [Bug tree-optimization/55687] New: [4.8 Regression] ICE in hide_evolution_in_other_loops_than_loop, at tree-chrec.c:716 rguenth at gcc dot gnu.org
2012-12-14 9:29 ` [Bug tree-optimization/55687] " rguenth at gcc dot gnu.org
2012-12-14 9:51 ` rguenth at gcc dot gnu.org
2012-12-14 11:06 ` rguenth at gcc dot gnu.org
2012-12-14 11:34 ` mpolacek at gcc dot gnu.org
2012-12-14 12:58 ` rguenth at gcc dot gnu.org
2012-12-14 12:59 ` rguenth at gcc dot gnu.org
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