Re: c++/4549: inf. loop compiling bad code

Re: c++/4549: inf. loop compiling bad code

[lerdsuwa]

The following reply was made to PR c++/4549; it has been noted by GNATS.

From: lerdsuwa@gcc.gnu.org
To: gcc-bugs@gcc.gnu.org, gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org,
  jdonner@schedsys.com, nobody@gcc.gnu.org
Cc:  
Subject: Re: c++/4549: inf. loop compiling bad code
Date: 17 Nov 2001 07:24:08 -0000

 Synopsis: inf. loop compiling bad code
 
 State-Changed-From-To: open->analyzed
 State-Changed-By: lerdsuwa
 State-Changed-When: Fri Nov 16 23:24:06 2001
 State-Changed-Why:
     Confirmed.
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=4549&database=gcc

Re: c++/4549: inf. loop compiling bad code

[bangerth]

Synopsis: inf. loop compiling bad code

State-Changed-From-To: analyzed->closed
State-Changed-By: bangerth
State-Changed-When: Fri Nov 15 17:35:53 2002
State-Changed-Why:
    Both 3.2.1pre and 3.3 CVS now report
    tmp/g> /home/bangerth/bin/gcc-3.2.1-pre/bin/c++ -c x.cc
    x.cc: In function `int main()':
    x.cc:14: parse error before `{' token
    x.cc: At global scope:
    x.cc:18: redefinition of `Summat::Summat()'
    x.cc:7: `Summat::Summat()' previously defined here
    x.cc:18: no `Summat::Summat()' member function declared in class `Summat'
    x.cc: In constructor `Summat::Summat()':
    x.cc:19: parse error before `{' token
    
    and don't go into an endless loop any more.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=4549

Re: c++/4549: inf. loop compiling bad code

[lerdsuwa]

Synopsis: inf. loop compiling bad code

State-Changed-From-To: open->analyzed
State-Changed-By: lerdsuwa
State-Changed-When: Fri Nov 16 23:24:06 2001
State-Changed-Why:
    Confirmed.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&pr=4549&database=gcc

c++/4549: inf. loop compiling bad code

[jdonner]

>Number:         4549
>Category:       c++
>Synopsis:       inf. loop compiling bad code
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    unassigned
>State:          open
>Class:          ice-on-illegal-code
>Submitter-Id:   net
>Arrival-Date:   Thu Oct 11 14:16:02 PDT 2001
>Closed-Date:
>Last-Modified:
>Originator:     jdonner@schedsys.com
>Release:        3.0.1
>Organization:
>Environment:
Linux 2.4.7-64GB-SMP #1 SMP Tue Jul 24 15:26:03 GMT 2001 i686 unknown
>Description:
compiler goes into inf. loop on this code:

// begin /////////////////
struct ArrWrap {
  int arr[2];
};

class Summat {
public:
  Summat() : m_wrap((ArrWrap){{0, 1}}) {}
  ArrWrap m_wrap;
};

int main()
{
  ArrWrap wrap;
  wrap = {{0, 1}};
}

Summat::Summat()
{
  m_wrap = {{0, 1}};
}
// end /////////////////////////
>How-To-Repeat:
jdonner@goliath Common/Util> g++ -v -save-temps -W -Wall foodle.cpp
Reading specs from /usr/local/gcc301/lib/gcc-lib/i686-pc-linux-gnu/3.0.1/specs
Configured with: /home/jdonner/mkgcc3/gcc-3.0.1/configure --enable-threads=posix --prefix=/usr/local/gcc301
Thread model: posix
gcc version 3.0.1
 /usr/local/gcc301/lib/gcc-lib/i686-pc-linux-gnu/3.0.1/cpp0 -lang-c++ -D__GNUG__=3 -D__GXX_DEPRECATED -D__EXCEPTIONS -D__GXX_ABI_VERSION=100 -v -D__GNUC__=3 -D__GNUC_MINOR__=0 -D__GNUC_PATCHLEVEL__=1 -D__ELF__ -Dunix -Dlinux -D__ELF__ -D__unix__ -D__l
inux__ -D__unix -D__linux -Asystem=posix -D__NO_INLINE__ -D__STDC_HOSTED__=1 -W -Wall -D_GNU_SOURCE -Acpu=i386 -Amachine=i386 -Di386 -D__i386 -D__i386__ -D__tune_i686__ -D__tune_pentiumpro__ foodle.cpp foodle.ii
GNU CPP version 3.0.1 (cpplib) (i386 Linux/ELF)
ignoring nonexistent directory "/opt/oracle/rdbms/public"
ignoring nonexistent directory "/opt/oracle/rdbms/public"
ignoring nonexistent directory "/opt/oracle/rdbms/public"
ignoring nonexistent directory "/opt/oracle/rdbms/public"
ignoring nonexistent directory "/opt/oracle/rdbms/public"
ignoring nonexistent directory "/usr/local/gcc301/i686-pc-linux-gnu/include"
ignoring duplicate directory "/usr/local/qt/include"
ignoring duplicate directory "/usr/local/qt/include"
ignoring duplicate directory "/usr/local/qt/include"
ignoring duplicate directory "/usr/local/qt/include"
#include "..." search starts here:
#include <...> search starts here:
 /usr/local/qt/include
 /usr/local/gcc301/include/g++-v3
 /usr/local/gcc301/include/g++-v3/i686-pc-linux-gnu
 /usr/local/gcc301/include/g++-v3/backward
 /usr/local/include
 /usr/local/gcc301/lib/gcc-lib/i686-pc-linux-gnu/3.0.1/include
 /usr/include
End of search list.
 /usr/local/gcc301/lib/gcc-lib/i686-pc-linux-gnu/3.0.1/cc1plus -fpreprocessed foodle.ii -quiet -dumpbase foodle.cpp -W -Wall -version -o foodle.s
GNU CPP version 3.0.1 (cpplib) (i386 Linux/ELF)
GNU C++ version 3.0.1 (i686-pc-linux-gnu)
        compiled by GNU C version 3.0.1.
foodle.cpp:7: parse error before `)' token
foodle.cpp:7: missing ';' before right brace
foodle.cpp: In constructor `Summat::Summat()':
foodle.cpp:7: parse error before `m_wrap'

... have to ^C
I built this compiler with make -j 2, if that has anything
to do with it...
>Fix:

>Release-Note:
>Audit-Trail:
>Unformatted: