Re: c++/10661: ICE in instantiate_decl, at cp/pt.c:10052 while instantiating static member variables

Re: c++/10661: ICE in instantiate_decl, at cp/pt.c:10052 while instantiating static member variables

[giovannibajo]

Synopsis: ICE in instantiate_decl, at cp/pt.c:10052 while instantiating static member variables

State-Changed-From-To: analyzed->closed
State-Changed-By: bajo
State-Changed-When: Thu May  8 17:11:44 2003
State-Changed-Why:
    The code is crashing GCC since 2.95 at least, but it's fixed
    in 3.4. To make it work in 3.3, just fix the code to be
    legal as explained in the audit trail.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10661

Re: c++/10661: ICE in instantiate_decl, at cp/pt.c:10052 while instantiating static member variables

[giovannibajo]

Old Synopsis: [3.3/3.4? regression] ICE in instantiate_decl
New Synopsis: ICE in instantiate_decl, at cp/pt.c:10052 while instantiating static member variables

Responsible-Changed-From-To: bajo->unassigned
Responsible-Changed-By: bajo
Responsible-Changed-When: Thu May  8 17:07:36 2003
Responsible-Changed-Why:
    Analysys is done
State-Changed-From-To: open->analyzed
State-Changed-By: bajo
State-Changed-When: Thu May  8 17:07:36 2003
State-Changed-Why:
    Ok, I'm done with this report. This is the reduced
    snippet that triggers the bug:
    
    ------------------------------------------------
    template <class A>
    struct Foo
    {
    	static const int var = 0; 
    
    	template <class>
    	struct Nested
    	{
    		static const int nested_var = var;
    	}; 
    };
    
    template <class A>
    struct Bar
    {
        typename Foo<A>::Nested<void> a;
    };
    
    template struct Bar<void>;
    ------------------------------------------------
    pr10661.cpp: In instantiation of `const int Foo<void>::var':
    pr10661.cpp:9:   instantiated from `Foo<void>::Nested<void>'
    pr10661.cpp:16:   instantiated from `Bar<void>'
    pr10661.cpp:19:   instantiated from here
    pr10661.cpp:4: internal compiler error: in instantiate_decl, at cp/pt.c:10330
    Please submit a full bug report,
    
    As anticipated, the code is illegal: it's missing a
    keyword 'template' in line 16, but we should not ICE
    anyway. Now the funny thing is, this reduced snippet
    is not a regression. I have no _clue_ why the original
    big testcase did compile on 3.2, probably for some weird
    reason. And I will _not_ go through everything again to
    find the difference, since there is an easy fix for this:
    just make the code legal. 
    Anyway, while working on this I forked out about 10 other
    ICEs, which I will file to GNATS and analyze in the next
    few days.

http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10661