gcc -O = internal error when ostream.fail() !?

[Igor Durdanovic]

Hallo,

Am I missing something obvious? Here is the offending code that
crashes 3.2 compiler when compiled with -O

Igor

#include <iostream>

using namespace std;

void f( ostream& os )
{
  if ( os.fail() ) {}
}

int main()
{
  f( cout );
  return 0;
}


(4)467[968]> /usr/local/gcc-3.2-1/bin/g++ -v -O -c main.C 
Reading specs from /usr/local/gcc-3.2-1/lib/gcc-lib/i686-pc-linux-gnu/3.2/specs
Configured with: /usr/src/redhat/BUILD/gcc-3.2/configure --prefix=/usr/local/gcc-3.2-1
Thread model: posix
gcc version 3.2
 /usr/local/gcc-3.2-1/lib/gcc-lib/i686-pc-linux-gnu/3.2/cc1plus -v -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__OPTIMIZE__ -D__STDC_HOSTED__=1 -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ main.C -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -quiet -dumpbase main.C -O -version -o /tmp/ccAeqbkd.s
GNU CPP version 3.2 (cpplib) (i386 Linux/ELF)
GNU C++ version 3.2 (i686-pc-linux-gnu)
        compiled by GNU C version 3.2.
ignoring nonexistent directory "/usr/local/gcc-3.2-1/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/gcc-3.2-1/include/c++/3.2
 /usr/local/gcc-3.2-1/include/c++/3.2/i686-pc-linux-gnu
 /usr/local/gcc-3.2-1/include/c++/3.2/backward
 /usr/local/include
 /usr/local/gcc-3.2-1/include
 /usr/local/gcc-3.2-1/lib/gcc-lib/i686-pc-linux-gnu/3.2/include
 /usr/include
End of search list.
main.C: In function `void f(std::ostream&)':
main.C:8: internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL: http://www.gnu.org/software/gcc/bugs.html > for instructions.


(4)468[969]> /usr/local/gcc-3.2-1/bin/g++ -v  -c main.C 
Reading specs from /usr/local/gcc-3.2-1/lib/gcc-lib/i686-pc-linux-gnu/3.2/specs
Configured with: /usr/src/redhat/BUILD/gcc-3.2/configure --prefix=/usr/local/gcc-3.2-1
Thread model: posix
gcc version 3.2
 /usr/local/gcc-3.2-1/lib/gcc-lib/i686-pc-linux-gnu/3.2/cc1plus -v -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_i686__ -D__tune_pentiumpro__ main.C -D__GNUG__=3 -D__DEPRECATED -D__EXCEPTIONS -quiet -dumpbase main.C -version -o /tmp/cce38xx6.s
GNU CPP version 3.2 (cpplib) (i386 Linux/ELF)
GNU C++ version 3.2 (i686-pc-linux-gnu)
        compiled by GNU C version 3.2.
ignoring nonexistent directory "/usr/local/gcc-3.2-1/i686-pc-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/gcc-3.2-1/include/c++/3.2
 /usr/local/gcc-3.2-1/include/c++/3.2/i686-pc-linux-gnu
 /usr/local/gcc-3.2-1/include/c++/3.2/backward
 /usr/local/include
 /usr/local/gcc-3.2-1/include
 /usr/local/gcc-3.2-1/lib/gcc-lib/i686-pc-linux-gnu/3.2/include
 /usr/include
End of search list.
 as -V -Qy -o main.o /tmp/cce38xx6.s
GNU assembler version 2.12.1 (i386-redhat-linux) using BFD version 2.12.1


(4)469[970]> /usr/local/gcc-3.2-1/bin/g++ -v            
Reading specs from /usr/local/gcc-3.2-1/lib/gcc-lib/i686-pc-linux-gnu/3.2/specs
Configured with: /usr/src/redhat/BUILD/gcc-3.2/configure --prefix=/usr/local/gcc-3.2-1
Thread model: posix
gcc version 3.2