Re: c++/8582: [3.2 regression] ICE in exception handling

Re: c++/8582: [3.2 regression] ICE in exception handling

[Joe Buck]

The following reply was made to PR c++/8582; it has been noted by GNATS.

From: Joe Buck <jbuck@synopsys.com>
To: gcc-gnats@gcc.gnu.org, gcc-bugs@gcc.gnu.org, reichelt@igpm.rwth-aachen.de,
   gawrilow@math.tu-berlin.de
Cc:  
Subject: Re: c++/8582: [3.2 regression] ICE in exception handling
Date: Fri, 25 Apr 2003 12:38:00 -0700

 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8582
 
 There is no ICE for the 3.3 branch, but there is an ICE in the trunk 
 (20030423)
 for the original testcase.
 
 8582.C:32616: internal compiler error: Segmentation fault
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <URL:http://gcc.gnu.org/bugs.html> for instructions.
 
 The reduced testcase does *not* cause a crash, so evidently 3.4 has a 
 different
 bug.
 
 I will change the synopsis line to read "3.4 regression".
 

Re: c++/8582: [3.2 regression] ICE in exception handling

[Janis Johnson]

The following reply was made to PR c++/8582; it has been noted by GNATS.

From: Janis Johnson <janis187@us.ibm.com>
To: gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org, gawrilow@math.tu-berlin.de,
   gcc-bugs@gcc.gnu.org, nobody@gcc.gnu.org, jason@redhat.com
Cc:  
Subject: Re: c++/8582: [3.2 regression] ICE in exception handling
Date: Fri, 20 Dec 2002 14:50:24 -0800

 The regression reported in PR c++/8582 was fixed in the
 mainline with this patch, but still exists in the 3.2 branch:
 
 gcc (really 2002-04-04):
 
 2002-04-03  Jason Merrill  <jason@redhat.com>
 
         * except.c
         * except.h
         * expr.c
 
         PR c++/5636
         * tree.h
         * stmt.c
         * c-semantics.c
         * c-common.h
 
 gcc/cp:
 
 2002-04-04  Jason Merrill  <jason@redhat.com>
 
         * semantics.c
         * cp-tree.h
         * init.c
         * cp-tree.def
         * cp-tree.h
         * decl.c
         * dump.c
         * pt.c
         * tree.c
 
         * init.c
 
         PR c++/5636
         * semantics.c
 
         PR c++/5104
         * typeck.c
 
 Here's a small test case that causes the compiler to ICE
 when compiled on i686-linux:
 
 -------------------
 void* operator new(unsigned int, void*) throw();
 void operator delete (void*, void*) throw();
 
 struct A { A(); };
 
 struct B
 {
   struct X
   {
     ~X();
     operator void* () const;
   };
 
   X bar();
 };
 
 struct C
 {
   B b;
 
   C(A&) { new(b.bar()) A; }
 };
 
 void foo()
 {
   A a;
   C c(a);
 }
 -------------------
 
 Output from the 3.2 branch compiler:
 
 8582.C: In constructor `C::C(A&)':
 8582.C:21: Internal compiler error in convert_from_eh_region_ranges_1,
 at
    except.c:1404
 Please submit a full bug report,
 with preprocessed source if appropriate.
 See <URL:http://www.gnu.org/software/gcc/bugs.html> for instructions.
 
 http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=8582