[Bug c++/15696] New: [3.5 Regression] ICE in gimplifier with pointer-to-members

[Bug c++/15696] New: [3.5 Regression] ICE in gimplifier with pointer-to-members

[pinskia at gcc dot gnu dot org]

class A
{};
class B;
class B:public A
{};
class C
{
        typedef void (A::*ftype)();
        C(B* a){a->*ftype();}
};

-- 
           Summary: [3.5 Regression] ICE in gimplifier with pointer-to-
                    members
           Product: gcc
           Version: 3.5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: critical
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: pinskia at gcc dot gnu dot org
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15696

[Bug c++/15696] [3.5 Regression] ICE in gimplifier with pointer-to-members

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-05-28 01:47 -------
prtgddbgfd.cc: In constructor `C::C(B*)':
prtgddbgfd.cc:9: internal compiler error: in gimplify_expr, at gimplify.c:3471
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Been failing since at least 3.5-tree-ssa 20040512.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |3.5.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15696

[Bug c++/15696] [3.4/3.5 Regression] ICE with pointer-to-members

[reichelt at gcc dot gnu dot org]

------- Additional Comments From reichelt at gcc dot gnu dot org  2004-05-28 13:09 -------
Confirmed.

Stripping away unneccesary classes I get the following testcase:

========================================
struct A {};

typedef void (A::*ftype)();

void foo(A a) { a.*ftype(); }
========================================

Slightly modifing the last line, I get a testcase that already crashes
with gcc 3.4.0:

========================================
struct A {};

typedef void (A::*ftype)();

void foo() { A().*ftype(); }
========================================

PR15696.cc: In function `void foo()':
PR15696.cc:5: internal compiler error: in cxx_expand_expr, at cp/expr.c:101
Please submit a full bug report, [etc.]


-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |reichelt at gcc dot gnu dot
                   |                            |org
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
           Keywords|                            |monitored
      Known to fail|                            |3.4.0 3.5.0
      Known to work|                            |3.3.3
   Last reconfirmed|0000-00-00 00:00:00         |2004-05-28 13:09:37
               date|                            |
            Summary|[3.5 Regression] ICE in     |[3.4/3.5 Regression] ICE
                   |gimplifier with pointer-to- |with pointer-to-members
                   |members                     |
   Target Milestone|3.5.0                       |3.4.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15696

[Bug c++/15696] [3.4/3.5 Regression] ICE with pointer-to-members

[mmitchel at gcc dot gnu dot org]

------- Additional Comments From mmitchel at gcc dot gnu dot org  2004-05-28 20:01 -------
The first case in Comment #2 works in GCC 3.4.1.  Is the second case a regression?

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15696

[Bug c++/15696] [3.4/3.5 Regression] ICE with pointer-to-members

[pinskia at gcc dot gnu dot org]

------- Additional Comments From pinskia at gcc dot gnu dot org  2004-05-28 20:04 -------
Yes it used to work in 3.3.3.

-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=15696