[Bug c++/62127] New: [5.0 Regression] ICE with VLA in constructor

[Bug c++/62127] New: [5.0 Regression] ICE with VLA in constructor

[reichelt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62127

            Bug ID: 62127
           Summary: [5.0 Regression] ICE with VLA in constructor
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Keywords: ice-on-valid-code
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: reichelt at gcc dot gnu.org

The following valid code snippet triggers an ICE on trunk:

==================
struct A
{
  A(int);
};

A::A(int i)
{
  int x[1][i];
  x[0][0] = 0;
}
==================

bug.cc: In constructor 'A::A(int)':
bug.cc:6:1: internal compiler error: in execute, at cfgexpand.c:5731
 A::A(int i)
 ^
0x83a0b3 execute
        ../../gcc/gcc/cfgexpand.c:5731
Please submit a full bug report, [etc.]

The regression was introduced in June between 2014-06-12 and 2014-06-29.

This is actually the first part of the testcase from g++.dg/ext/vla1.C
compiled without "-pedantic-errors" (see PR6994).

[Bug c++/62127] [5.0 Regression] ICE with VLA in constructor

[reichelt at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62127

Volker Reichelt <reichelt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|                            |4.7.0, 4.8.0, 4.9.0
   Target Milestone|---                         |5.0
      Known to fail|                            |5.0

[Bug c++/62127] [5.0 Regression] ICE with VLA in constructor

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62127

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2014-08-14
                 CC|                            |hubicka at gcc dot gnu.org,
                   |                            |mpolacek at gcc dot gnu.org
     Ever confirmed|0                           |1

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Started with r212111.

[Bug c++/62127] [5 Regression] ICE with VLA in constructor

[jason at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62127

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |larsbj at gullik dot net

--- Comment #2 from Jason Merrill <jason at gcc dot gnu.org> ---
*** Bug 61678 has been marked as a duplicate of this bug. ***

[Bug c++/62127] [5 Regression] ICE with VLA in constructor

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62127

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |hubicka at gcc dot gnu.org

--- Comment #3 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Mine

[Bug c++/62127] [5 Regression] ICE with VLA in constructor

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62127

--- Comment #5 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Author: hubicka
Date: Mon Oct 13 14:43:24 2014
New Revision: 216150

URL: https://gcc.gnu.org/viewcvs?rev=216150&root=gcc&view=rev
Log:

    PR tree-optimization/62127
    * g++.dg/torture/pr62127.C: New testcase.
    * tree.c (remap_type_1): When remapping array, remap
    also its type.

Added:
    trunk/gcc/testsuite/g++.dg/torture/pr62127.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-inline.c

[Bug c++/62127] [5 Regression] ICE with VLA in constructor

[hubicka at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62127

Jan Hubicka <hubicka at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED

--- Comment #6 from Jan Hubicka <hubicka at gcc dot gnu.org> ---
Fixed.