[Bug c++/31579] New: ICE when compiling attached code

[Bug c++/31579] New: ICE when compiling attached code

[us15 at os dot inf dot tu-dresden dot de]

g++ crashes when compiling the attached code:
/tmp/build/src/oldloader.cpp:1638: 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.

Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: ../gcc-svn/configure --prefix=/usr --enable-shared
--enable-threads=posix --enable-__cxa_atexit --enable-languages=c,c++
--disable-checking --with-gnu-ld --verbose
Thread model: posix
gcc version 4.3.0 20070411 (experimental)


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           Summary: ICE when compiling attached code
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: us15 at os dot inf dot tu-dresden dot de
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug c++/31579] ICE when compiling attached code

[us15 at os dot inf dot tu-dresden dot de]

------- Comment #1 from us15 at os dot inf dot tu-dresden dot de  2007-04-15 17:23 -------
Created an attachment (id=13368)
 --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=13368&action=view)
preprocessed code that triggers ICE


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug c++/31579] ICE when compiling attached code

[pinskia at gcc dot gnu dot org]

------- Comment #2 from pinskia at gcc dot gnu dot org  2007-04-16 07:56 -------
Reduced testcase:
struct Industry {
 unsigned char produced_cargo[2];
};
unsigned int a = (((unsigned long)&reinterpret_cast<const volatile
char&>((((Industry*)(char*)8)->produced_cargo[0]))) - 8);


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pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug c++/31579] [4.3 regression] ICE when compiling attached code

[bangerth at dealii dot org]

------- Comment #3 from bangerth at dealii dot org  2007-04-19 20:06 -------
Confirmed. This is a regression on at least mainline. I don't
have my set of compilers around here to verify if it is also a 
regression on 4.1 and 4.2.x. It seems to work with 4.0.x.

W.


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bangerth at dealii dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |bangerth at dealii dot org
            Summary|ICE when compiling attached |[4.3 regression] ICE when
                   |code                        |compiling attached code


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug c++/31579] [4.3 regression] ICE when compiling attached code

[pinskia at gcc dot gnu dot org]

-- 

pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  GCC build triplet|i686-pc-linux-gnu           |
   GCC host triplet|i686-pc-linux-gnu           |
 GCC target triplet|i686-pc-linux-gnu           |
   Target Milestone|---                         |4.3.0


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug c++/31579] [4.3 regression] ICE when compiling attached code

[pinskia at gcc dot gnu dot org]

------- Comment #4 from pinskia at gcc dot gnu dot org  2007-04-19 20:15 -------
(In reply to comment #3)
> Confirmed. This is a regression on at least mainline. I don't
> have my set of compilers around here to verify if it is also a 
> regression on 4.1 and 4.2.x. It seems to work with 4.0.x.

I tried it out with 4.1.1 and 4.2.0 and it works there.


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
      Known to work|4.1.1                       |4.1.1 4.2.0
   Last reconfirmed|0000-00-00 00:00:00         |2007-04-19 20:15:32
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug c++/31579] [4.3 regression] ICE when compiling attached code

[pinskia at gcc dot gnu dot org]

------- Comment #5 from pinskia at gcc dot gnu dot org  2007-06-07 02:55 -------
I have a fix, I fixed this one already on the pointer_plus branch and I did not
know there was a way to invoke this bug on the trunk.
2007-05-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        * expr.c (expand_expr_addr_expr_1): Call expand_expr
        for the offset with the modifier as EXPAND_INITIALIZER
        if the modifier is EXPAND_INITIALIZER.
        (expand_expr_real_1 <case INTEGER_CST>): Don't force to
        a register if we had an overflow.
http://gcc.gnu.org/ml/gcc-patches/2007-05/msg00841.html


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pinskia at gcc dot gnu dot
                   |dot org                     |org
             Status|NEW                         |ASSIGNED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug middle-end/31579] [4.3 regression] ICE when compiling attached code

[pinskia at gcc dot gnu dot org]

------- Comment #6 from pinskia at gcc dot gnu dot org  2007-06-12 01:31 -------
Patch posted:
http://gcc.gnu.org/ml/gcc-patches/2007-06/msg00745.html


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pinskia at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                URL|                            |http://gcc.gnu.org/ml/gcc-
                   |                            |patches/2007-
                   |                            |06/msg00745.html
           Keywords|                            |patch


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug middle-end/31579] [4.3 regression] ICE when compiling attached code

[pinskia at gcc dot gnu dot org]

------- Comment #7 from pinskia at gcc dot gnu dot org  2007-06-12 19:16 -------
Subject: Bug 31579

Author: pinskia
Date: Tue Jun 12 19:15:50 2007
New Revision: 125655

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=125655
Log:
2007-06-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/31579
        * expr.c (expand_expr_addr_expr_1): Call expand_expr
        for the offset with the modifier as EXPAND_INITIALIZER
        if the modifier is EXPAND_INITIALIZER.
        (expand_expr_real_1 <case INTEGER_CST>): Don't force to
        a register if we had an overflow.

2007-06-12  Andrew Pinski  <andrew_pinski@playstation.sony.com>

        PR middle-end/31579
         * g++.dg/torture/pr31579.C: New testcase.


Added:
    trunk/gcc/testsuite/g++.dg/torture/pr31579.C
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/expr.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579

[Bug middle-end/31579] [4.3 regression] ICE when compiling attached code

[pinskia at gcc dot gnu dot org]

------- Comment #8 from pinskia at gcc dot gnu dot org  2007-06-12 19:16 -------
Fixed.


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pinskia at gcc dot gnu dot org changed:

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


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31579