[Mingw-notify] [ mingw-Bugs-1844604 ] internal compiler error in main.cpp

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Bugs item #1844604, was opened at 2007-12-05 16:58
Message generated for change (Comment added) made by dannysmith
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Category: gcc
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: John Pye (jdpipe)
Assigned to: Nobody/Anonymous (nobody)
Summary: internal compiler error in main.cpp

Initial Comment:
Hi there

I got this 'internal compiler error' Segfault with the following commandline:

g++ -o main.o -c -g -Wall "-IC:\Program Files\Boost-1.34.1\include" "-IC:\Program Files\GnuWin32\include" main.cpp
main.cpp:45: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.mingw.org/bugs.shtml> for instructions.
scons: building terminated because of errors.
scons: *** [main.o] Error 1

*  OS version: XP

John@THUNDER ~/optx
$ gcc -v
Reading specs from c:/MinGW/bin/../lib/gcc/mingw32/3.4.5/specs
Configured with: ../gcc-3.4.5/configure --with-gcc --with-gnu-ld --with-gnu-as --host=mingw32 --target=mingw32 --prefix=/mingw --enable-threads --disable-nls --enable-languages=c,c++,f77,ada,objc,java --disable-win32-registry --disable-shared --enable-sjlj-exceptions --enable-libgcj --disable-java-awt --without-x --enable-java-gc=boehm --disable-libgcj-debug --enable-interpreter --enable-hash-synchronization --enable-libstdcxx-debug
Thread model: win32
gcc version 3.4.5 (mingw special)

John@THUNDER ~/optx
$ ld -v
GNU ld version 2.17.50 20060824

* mingw version MinGW-5.1.3.exe

* build environment: MSYS

John@THUNDER ~/optx
$ uname -a
MINGW32_NT-5.1 THUNDER 1.0.10(0.46/3/2) 2004-03-15 07:17 i686 unknown

* small test case demonstrating the bug: will send preprocessed code via email to the person following up this bug.

* mingw-runtime version:

#define __MINGW32_VERSION 3.13
#define __MINGW32_MAJOR_VERSION 3
#define __MINGW32_MINOR_VERSION 13

* w32api version:

#define __W32API_VERSION 3.10
#define __W32API_MAJOR_VERSION 3
#define __W32API_MINOR_VERSION 10

* any other detailed information pertinent to your experience with the bug

Previously compiled this code on another Windows system with no change, only change is that I am using GnuWin32 GSL instead of locally MSYS-compiled copy.

Cheers
JP



----------------------------------------------------------------------

Comment By: Danny Smith (dannysmith)
Date: 2007-12-06 19:41

Message:
Logged In: YES 
user_id=11494
Originator: NO

This appears to be dllimport issue, specifically with dllimport of
explicit template specializations, like this in mirrorbundle.h (line 107)

typedef ParametricTransform<MirrorBundle,ParametersMoveToNearest>
TransformMoveToNearest; 

template<> extern __attribute__((dllimport)) MirrorBundle &
TransformMoveToNearest::operator()(MirrorBundle &); 

There are two different problems 1) Older G++ has problem with vtable
emission when an entry is a dllimport. This causes ICE that you see.
Removing the dllimport from above template specialization importand
others
like it is workaround. 

2) G++ 4.3.0 reports: mirrorbundle.h:111: error: explicit template
specialization cannot have a storage class.

The "extern" in "template<> extern __attribute__((dllimport))" is
unnecessary and invalid C++. Is is it required by MSVC?

----------------------------------------------------------------------

Comment By: John Pye (jdpipe)
Date: 2007-12-05 19:05

Message:
Logged In: YES 
user_id=849068
Originator: YES

Attached is a minimal example with preprocessed code.

John@THUNDER ~/optx
$ g++ example-pre.cpp
[...]:45: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.mingw.org/bugs.shtml> for instructions.


File Added: example-pre.cpp.bz2

----------------------------------------------------------------------

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