[3.2 ICE regression, fixed in 3.3] Error reporting routines re-entered
>Submitter-Id: net
>Originator: "H. S. Teoh" <hsteoh@quickfur.ath.cx>
>Organization: The Debian Project
>Confidential: no
>Synopsis:
>Severity: non-critical
>Priority: medium
>Category: c++
>Class: ice-on-illegal-code
>Release: 3.2.2 (Debian) (Debian unstable)
>Environment:
System: Debian GNU/Linux (unstable)
Architecture: i686
host: i386-linux
Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,proto,pascal,objc,ada --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.2 --enable-shared --with-system-zlib --enable-nls --without-included-gettext --enable-__cxa_atexit --enable-clocale=gnu --enable-java-gc=boehm --enable-objc-gc i386-linux
Thread model: posix
gcc version 3.2.2 20021212 (Debian prerelease)
>Description:
[ Reported to the Debian BTS as report #180937.
Please CC 180937@bugs.debian.org on replies.
Log of report can be found at http://bugs.debian.org/180937 ]
A regression from 2.95, fixed in 3.3:
/*
* g++ 3.2 bug in handling switch statements that contain object declarations
* constructed using objects declared outside the switch.
*/
class common { };
class someclass {
public:
someclass(common *c) { }
~someclass() { }
};
class someotherclass {
public:
someotherclass(common *c) { }
~someotherclass() { }
};
int main(int argc, char *argv[]) {
enum { CHOICE_A, CHOICE_B } choice = CHOICE_A;
common commonobj;
switch (choice) {
case CHOICE_A:
someclass obj1(&commonobj);
// do something
break;
case CHOICE_B:
someotherclass obj2(&commonobj);
// do something
break;
default:
break;
}
}
class common { };
class someclass {
public:
someclass(common *c) { }
~someclass() { }
};
class someotherclass {
public:
someotherclass(common *c) { }
~someotherclass() { }
};
int main(int argc, char *argv[]) {
enum { CHOICE_A, CHOICE_B } choice = CHOICE_A;
common commonobj;
switch (choice) {
case CHOICE_A:
someclass obj1(&commonobj);
break;
case CHOICE_B:
someotherclass obj2(&commonobj);
break;
default:
break;
}
}
$ g++-3.2 bug-180937.cc
bug-180937.cc: In function `int main(int, char**)':
bug-180937.cc:29: jump to case label
bug-180937.cc:26: crosses initialization of `someclass obj1'
bug-180937.cc:33: jump to case label
bug-180937.cc:30: crosses initialization of `someotherclass obj2'
bug-180937.cc:26: crosses initialization of `someclass obj1'
Internal compiler error: Error reporting routines re-entered.
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
both g++-2.95.3 and current 3.3 don't ICE.
>How-To-Repeat:
>Fix:
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