c++/9872: temporary destructor not called?

[Sandor Kovacs]

(Hopefully now complete) bug report for " temporary destructor not called?"
 (see 
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=9872)


Symptoms: simple test program eats up memory if not compiled with 
-fno-elide-constructors. (simple program attached)


1) ouput of gcc -v:

Reading specs from /usr/lib/gcc-lib/i486-suse-linux/3.2/specs
Configured with: ../configure --enable-threads=posix --prefix=/usr 
--with-local-prefix=/usr/local --infodir=/usr/share/info 
--mandir=/usr/share/man --libdir=/usr/lib 
--enable-languages=c,c++,f77,objc,java,ada --enable-libgcj 
--with-gxx-include-dir=/usr/include/g++ --with-slibdir=/lib 
--with-system-zlib --enable-shared --enable-__cxa_atexit 
i486-suse-linuxThread model: posixgcc version 3.2- the system type: suse 8.1; 
uname -a:Linux dragon 2.4.20-ck2 #6 Tue Feb 4 08:44:23 JST 2003 i686 unknown 
- the options given when GCC was configured/built: see above (using the gcc3.2 
shipped with suse8.1) 
- the complete command line that triggers the bug: 

   gcc -I/usr/lib/qt3/include -c bug.cpp
   gcc -L/usr/lib/qt3/lib -lqt-mt bug.o -o bug
   ./bug


2) the compiler output (error messages, warnings, etc.): no compiler output 
ie. no error/warning messages
 

3) the preprocessed file (*.i*) that triggers the bug, generated by adding 
-save-temps... : gcc output: (see attachment for .ii file)

> gcc -v -save-temps -I/usr/lib/qt3/include -c bug.cpp
Reading specs from /usr/lib/gcc-lib/i486-suse-linux/3.2/specs
Configured with: ../configure --enable-threads=posix --prefix=/usr 
--with-local-prefix=/usr/local --infodir=/usr/share/info 
--mandir=/usr/share/man --libdir=/usr/lib 
--enable-languages=c,c++,f77,objc,java,ada --enable-libgcj 
--with-gxx-include-dir=/usr/include/g++ --with-slibdir=/lib 
--with-system-zlib --enable-shared --enable-__cxa_atexit 
i486-suse-linuxThread model: posixgcc version 3.2 
/usr/lib/gcc-lib/i486-suse-linux/3.2/cpp0 -lang-c++ -D__GNUG__=3 
-D__DEPRECATED -D__EXCEPTIONS -v -I/usr/lib/qt3/include -D__GNUC__=3 
-D__GNUC_MINOR__=2 -D__GNUC_PATCHLEVEL__=0 -D__GXX_ABI_VERSION=102 -D__ELF__ 
-Dunix -D__gnu_linux__ -Dlinux -D__ELF__ -D__unix__ -D__gnu_linux__ 
-D__linux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ 
-D__STDC_HOSTED__=1 -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 
-D__i386__ -D__tune_i486__ bug.cpp bug.iiGNU CPP version 3.2 (cpplib) (i386 
Linux/ELF)#include "..." search starts here:#include <...> search starts 
here: /usr/lib/qt3/include /usr/include/g++ /usr/include/g++/i486-suse-linux 
/usr/include/g++/backward /usr/local/include 
/usr/lib/gcc-lib/i486-suse-linux/3.2/include /usr/i486-suse-linux/include 
/usr/includeEnd of search list. /usr/lib/gcc-lib/i486-suse-linux/3.2/cc1plus 
-fpreprocessed bug.ii -quiet -dumpbase bug.cpp -version -o bug.sGNU CPP 
version 3.2 (cpplib) (i386 Linux/ELF)GNU C++ version 3.2 (i486-suse-linux)
        compiled by GNU C version 3.2.
 /usr/lib/gcc-lib/i486-suse-linux/3.2/../../../../i486-suse-linux/bin/as -V 
-Qy -o bug.o bug.sGNU assembler version 2.12.90.0.15 (i486-suse-linux) using 
BFD version 2.12.90.0.15 20020717 (SuSE)


4)... you may want to post parts of it to point out assembly code you consider 
to be wrong:

I attach the asm file as well, but have no idea which part of the code is 
wrong


If I've missed something or you need further info please let me know;

 Sandor


> Synopsis: temporary destructor not called?
>
> State-Changed-From-To: open->feedback
> State-Changed-By: bangerth
> State-Changed-When: Thu Feb 27 15:32:14 2003
> State-Changed-Why:
>     We need the _preprocessed_ source to reproduce the problem.
>     Please take a look at
>       http://gcc.gnu.org/bugs.html
>
>     Thanks
>       Wolfgang
>
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&
>pr=9872
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