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From: "bli at cs dot wisc.edu" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/52464] When I compile my source codes with -O3 option, the compiler fails. This does not occur if I use -O2
Date: Sat, 10 Mar 2012 21:43:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D52464

--- Comment #6 from bli at cs dot wisc.edu 2012-03-10 21:43:05 UTC ---
Created attachment 26875
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=3D26875
The attachment is the preprocessed file (*.i*)

Sorry for not reading the rules carefully. The .ii file is attached.=20

GCC version 4.5.3

System: cygwin, this bug also occurs in Linux

Options and command line:
g++ -save-temps -Wall -O3 -ffast-math -c -I. parseIt.cpp

Compiler Output:

In file included from parseIt.cpp:9:0:
/usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/fstream: In constructor
=E2=80=98std::basic_ofstream<_CharT, _Traits>::basic_ofstream(const char*,
std::ios_base::openmode) [with _CharT =3D char, _Traits =3D std::char_trait=
s<char>,
std::ios_base::openmode =3D std::_Ios_Openmode]=E2=80=99:
/usr/lib/gcc/i686-pc-cygwin/4.5.3/include/c++/fstream:701:4: internal compi=
ler
error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.