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[Bug middle-end/30864] [4.3 Regression] ice for legal code with -O2
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 22 Feb 2007 19:04:49 -0000
- Subject: [Bug middle-end/30864] [4.3 Regression] ice for legal code with -O2
- References: <bug-30864-9596@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #4 from pinskia at gcc dot gnu dot org 2007-02-22 19:04 -------
Reduced testcase:
struct QString { ~QString(); };
template <class T> struct QValueListNode {
QValueListNode<T>* next;
T data;
};
template <class T> struct QValueListPrivate
{
~QValueListPrivate()
{
QValueListNode<T>* p = node->next;
while( p != node )
{
QValueListNode<T>* x = p->next;
delete p;
p = x;
}
}
QValueListNode<T>* node;
};
struct Option { QString sarg; };
struct Options {
QString helptext;
QValueListPrivate <QString> filelist;
QValueListPrivate <Option> optlist;
};
Options options;
--------------------------------
Backtrace:
#0 fancy_abort (file=0xda8f04 "../../gcc/cfg.c", line=665, function=0xda92c0
"alloc_aux_for_block") at ../../gcc/diagnostic.c:642
#1 0x00797674 in alloc_aux_for_block (bb=0xf6fbe0, size=24) at
../../gcc/cfg.c:665
#2 0x007979d8 in alloc_aux_for_blocks (size=24) at ../../gcc/cfg.c:693
#3 0x00989adc in estimate_bb_frequencies () at ../../gcc/predict.c:1712
#4 0x004b7594 in execute_function_todo (data=0x463d) at ../../gcc/passes.c:899
#5 0x004b6e70 in do_per_function (callback=0x4b71d4 <execute_function_todo>,
data=0x463d) at ../../gcc/passes.c:754
#6 0x004b76d8 in execute_todo (flags=17981) at ../../gcc/passes.c:932
#7 0x004b7e0c in execute_one_pass (pass=0xe9956c) at ../../gcc/passes.c:1077
(gdb) p *pass
$2 = {
name = 0xd82eb0 "apply_inline",
Note I reduced this to be able to reproduce with just -O2.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hubicka at gcc dot gnu dot
| |org
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Keywords| |ice-on-valid-code
Last reconfirmed|0000-00-00 00:00:00 |2007-02-22 19:04:49
date| |
Summary|[4.3 Regression] ice for |[4.3 Regression] ice for
|legal code with -O3 |legal code with -O2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30864