[Bug c++/40948] New: ICE in lower_stmt, at gimple-low.c:408

[Bug c++/40948] New: ICE in lower_stmt, at gimple-low.c:408

[lindevel at gmx dot net]

testclass.cpp: In constructor ‘TestClass::TestClass()’:
testclass.cpp:13: internal compiler error: in lower_stmt, at gimple-low.c:408

Please tell me if you need more information.

The error vanishes if the definition of TestClass::TestClass() is moved into
the declaration of TestClass.

Version: gcc (Gentoo 4.4.1 p1.0) 4.4.1


-- 
           Summary: ICE in lower_stmt, at gimple-low.c:408
           Product: gcc
           Version: 4.4.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: lindevel at gmx dot net
 GCC build triplet: x86_64-pc-linux-gnu
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[lindevel at gmx dot net]

------- Comment #1 from lindevel at gmx dot net  2009-08-03 09:17 -------
Created an attachment (id=18286)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18286&action=view)
TestClass source


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[lindevel at gmx dot net]

------- Comment #2 from lindevel at gmx dot net  2009-08-03 09:21 -------
Created an attachment (id=18287)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18287&action=view)
TestClass preprocessed source (compressed)


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jakub at gcc dot gnu dot org]

------- Comment #3 from jakub at gcc dot gnu dot org  2009-08-03 09:34 -------
Indeed, GIMPLE_WITH_CLEANUP_EXPR in the IL after gimplification.
On the trunk this ICEs too, with type verification failure.
Distilling a testcase.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jakub at gcc dot gnu dot org]

------- Comment #4 from jakub at gcc dot gnu dot org  2009-08-03 11:04 -------
Simplified testcase:
struct M
{
  M () {}
  ~M () {}
};

struct S
{
  S ();
  M m[1];
};

S::S () : m ((M[1]) { M () })
{
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jakub at gcc dot gnu dot org]

------- Comment #5 from jakub at gcc dot gnu dot org  2009-08-03 11:09 -------
This ICEs since somewhen between r134096 and r134281, likely PR35708.


-- 

jakub at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jason at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jakub at gcc dot gnu dot org]

------- Comment #6 from jakub at gcc dot gnu dot org  2009-08-03 12:07 -------
ctor initializer isn't needed, this ICEs as well:
struct M
{
  M () {}
  ~M () {}
};

void
foo ()
{
  M m[1] = (M[1]) { M () };
}

and the ICE on the trunk is for the same reason, GIMPLE_WITH_CLEANUP_EXPR left
in the IL during gimplification, presumably because there wasn't any
immediately surrounding CLEANUP_POINT_EXPR.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jakub at gcc dot gnu dot org]

------- Comment #7 from jakub at gcc dot gnu dot org  2009-08-03 14:57 -------
Seems this is cleanup of the finish_compound_literal returned TARGET_EXPR vs.
TRY_BLOCK added by build_vec_init for the from_array != 2 case.
The TARGET_EXPR with cleanup is only referenced from within stmts inside of the
TRY_BLOCK, yet the corresponding CLEANUP_POINT_EXPR is only added outside of
the TRY_BLOCK and thus gimplification doesn't find the
GIMPLE_WITH_CLEANUP_EXPR.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jakub at gcc dot gnu dot org]

------- Comment #8 from jakub at gcc dot gnu dot org  2009-08-03 15:11 -------
Created an attachment (id=18290)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=18290&action=view)
gcc45-pr40948.patch

Untested patch.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jason at gcc dot gnu dot org]

------- Comment #9 from jason at gcc dot gnu dot org  2009-08-04 02:10 -------
Subject: Bug 40948

Author: jason
Date: Tue Aug  4 02:10:05 2009
New Revision: 150394

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150394
Log:
        PR c++/40948
        * init.c (build_vec_init): Look through a TARGET_EXPR around a
        CONSTRUCTOR.

Added:
    trunk/gcc/testsuite/g++.dg/ext/complit12.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jason at gcc dot gnu dot org]

------- Comment #10 from jason at gcc dot gnu dot org  2009-08-04 02:26 -------
Subject: Bug 40948

Author: jason
Date: Tue Aug  4 02:26:34 2009
New Revision: 150395

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150395
Log:
        PR c++/40948
        * init.c (build_vec_init): Look through a TARGET_EXPR around a
        CONSTRUCTOR.


Added:
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/ext/complit12.C
      - copied unchanged from r150394,
trunk/gcc/testsuite/g++.dg/ext/complit12.C
Modified:
    branches/gcc-4_4-branch/gcc/cp/ChangeLog
    branches/gcc-4_4-branch/gcc/cp/init.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jason at gcc dot gnu dot org]

------- Comment #11 from jason at gcc dot gnu dot org  2009-08-06 16:25 -------
Subject: Bug 40948

Author: jason
Date: Thu Aug  6 16:25:19 2009
New Revision: 150529

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150529
Log:
        PR c++/40948
        * init.c (build_vec_init): Evaluate the initializer before
        starting the initialization try block.

Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/init.c
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/g++.dg/ext/complit12.C


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[jason at gcc dot gnu dot org]

------- Comment #12 from jason at gcc dot gnu dot org  2009-08-06 17:22 -------
Subject: Bug 40948

Author: jason
Date: Thu Aug  6 17:22:19 2009
New Revision: 150533

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=150533
Log:
        PR c++/40948
        * init.c (build_vec_init): Evaluate the initializer before
        starting the initialization try block.


Modified:
    branches/gcc-4_4-branch/gcc/cp/ChangeLog
    branches/gcc-4_4-branch/gcc/cp/init.c
    branches/gcc-4_4-branch/gcc/testsuite/ChangeLog
    branches/gcc-4_4-branch/gcc/testsuite/g++.dg/ext/complit12.C


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948

[Bug c++/40948] ICE in lower_stmt, at gimple-low.c:408

[pinskia at gcc dot gnu dot org]

------- Comment #13 from pinskia at gcc dot gnu dot org  2009-10-14 04:47 -------
Fixed.


-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.4.2


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40948