[Bug tree-optimization/21081] [4.1 Regression] internal compiler error: verify_stmts failed.

["f dot demiralp at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Additional Comments From f dot demiralp at gmail dot com  2005-04-21 22:14 -------
Subject: RE:  [4.1 Regression] internal compiler error: verify_stmts failed.

I checked the gcc_4_0_0_release out from the cvs repository today and I have
tried it.

here the g++ version information
g++ -v
Using built-in specs.
Target: i686-pc-cygwin
Configured with:
/usr/cvs-src/gcc4/configure --verbose --enable-languages=c,c++ --enable-nls 
--without-included-gettext --with-system-zlib --enable-interpreter --enable-
threads=posix --enable-sjlj-exceptions --disable-version-specific-runtime-li
bs --disable-win32-registry
Thread model: posix
gcc version 4.0.0

I have got the same error.

if the reduced testcase you extract from the http.ii compiled without
optimisation ( -O2), it seems okay
but if the optimisation option is applied, it fails

$ g++ -c -O2 -Wall -Wno-ctor-dtor-privacy reduced.cpp
reduced.cpp: In function 'wxString GetHeader()':
reduced.cpp:11: internal compiler error: in valid_in_set, at
tree-ssa-pre.c:1082
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

do you think this is the same problem? or a new one should be submitted.

Fehmi Demiralp


-----Original Message-----
From: pinskia at gcc dot gnu dot org [mailto:gcc-bugzilla@gcc.gnu.org]
Sent: 20 April 2005 01:09
To: fdemiralp@gmail.com
Subject: [Bug tree-optimization/21081] [4.1 Regression] internal
compiler error: verify_stmts failed.



------- Additional Comments From pinskia at gcc dot gnu dot org  2005-04-20
00:08 -------
Do you know if this also works with the 4.0 branch?

Reduced testcase:
class wxString;

extern __attribute__((dllimport)) char* wxEmptyString;

struct wxString {};

inline wxString& wxGetEmptyString()
{
    return *(wxString *)&wxEmptyString;
}
wxString GetHeader()
{
    return wxGetEmptyString();
}

This is very target dependent as the __attribute__ is which is causing the
problem.

--
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1
   Last reconfirmed|0000-00-00 00:00:00         |2005-04-20 00:08:40
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21081

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=21081