Re: c++/6971: Internal compiler error / compiler SIGSEGV

Re: c++/6971: Internal compiler error / compiler SIGSEGV

[lerdsuwa]

Synopsis: Internal compiler error / compiler SIGSEGV

State-Changed-From-To: open->analyzed
State-Changed-By: lerdsuwa
State-Changed-When: Sun Jun  9 03:30:05 2002
State-Changed-Why:
    Confirmed.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6971

Re: c++/6971: Internal compiler error / compiler SIGSEGV

[neroden]

Synopsis: Internal compiler error / compiler SIGSEGV

State-Changed-From-To: analyzed->closed
State-Changed-By: neroden
State-Changed-When: Sat Jan 11 14:10:29 2003
State-Changed-Why:
    Works in 3.4 mainline, for whatever reason.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6971

Re: c++/6971: Internal compiler error / compiler SIGSEGV

[Reichelt]

The following reply was made to PR c++/6971; it has been noted by GNATS.

From: Reichelt <reichelt@igpm.rwth-aachen.de>
To: wwieser@gmx.de, gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org,
        nobody@gcc.gnu.org
Cc:  
Subject: Re: c++/6971: Internal compiler error / compiler SIGSEGV
Date: Wed, 12 Jun 2002 16:05:23 +0200

 Hi,
 
 the testcase can be reduced to the following (legal) code snippet
 (just compile with g++ -c):
 
 ----------------------------snip here---------------------------
 template<int N> class A
 {
     template<int I,int J> friend int foo();
 };
 
 A<0> a;
 
 template<int I,int J> int foo() { return J; }
 
 void bar() { foo<0,0>(); }
 ----------------------------snip here---------------------------
 
 The bug is present in gcc 2.95.x, 3.0.x, 3.1 and in the main trunk.
 (checked on i686-pc-linux-gnu and mips-sgi-irix6.5).
 
 Greetings,
 Volker Reichelt
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6971
 
 

c++/6971: Internal compiler error / compiler SIGSEGV

[wwieser]

>Number:         6971
>Category:       c++
>Synopsis:       Internal compiler error / compiler SIGSEGV
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    unassigned
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Sat Jun 08 12:26:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     wwieser@gmx.de
>Release:        gcc-3.1.1
>Organization:
>Environment:
Linux / i686
>Description:
Compiling the test code (as attached), the compiler 
reports an internal compiler error or crashes: 

Removing TONS of code to get a minimal example made the 
SIGSEGVs vanish; the internal errors remaining: 

gcc -c crashme.cc -Wno-non-template-friend -DBUG=0
crashme.cc: In function `void internal_vect::mult_mv(internal_vect::vector<r>&, 
   const internal_vect::matrix<r, c>&, const
   internal_vect::vector<c>&) [with int r = 10, 
   int c = 10, int N = 3]':
crashme.cc:53:   instantiated from `void 
   vect::operator*=(vect::Vector<R>&, const 
   vect::Matrix<N, N>&) [with int N = 10]'
crashme.cc:89:   instantiated from here
crashme.cc:37: Internal compiler error in c_expand_expr, 
   at c-common.c:3650
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.

Similar thing with
gcc -c crashme.cc -Wno-non-template-friend -DBUG=1

(Please don't tell me that I shall make the demo code 
even shorter. I already spent two hours or more to strip 
it down to that size; removing any individual line will 
prevent the bug from showing up.)
>How-To-Repeat:
Compile example code (as attached)
>Fix:
Don't know. 
>Release-Note:
>Audit-Trail:
>Unformatted:
----gnatsweb-attachment----
Content-Type: text/x-c++src; name="crashme.cc"
Content-Transfer-Encoding: base64
Content-Disposition: attachment; filename="crashme.cc"

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