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From: "pepalogik at seznam dot cz" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/52621] New: ICE when compiling Fortran77 code with optimization
Date: Mon, 19 Mar 2012 16:13:00 -0000	[thread overview]
Message-ID: <bug-52621-4@http.gcc.gnu.org/bugzilla/> (raw)

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52621

             Bug #: 52621
           Summary: ICE when compiling Fortran77 code with optimization
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: pepalogik@seznam.cz


Created attachment 26920
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26920
Library source producing the ICE

I am compiling an old Fortran 77 code on Windows XP. I have fixed this code to
make it basically work in both FTN95 (Silverfrost) and gfortran compilers. But
when I try to make a highly optimized build with gfortran, I get an ICE.

Compiler version:
C:\MinGW\bin>gfortran.exe -v
Using built-in specs.
COLLECT_GCC=gfortran.exe
COLLECT_LTO_WRAPPER=c:/mingw/bin/../libexec/gcc/mingw32/4.6.1/lto-wrapper.exe
Target: mingw32
Configured with: ../gcc-4.6.1/configure
--enable-languages=c,c++,fortran,objc,ob
j-c++ --disable-sjlj-exceptions --with-dwarf2 --enable-shared --enable-libgomp
-
-disable-win32-registry --enable-libstdcxx-debug
--enable-version-specific-runti
me-libs --build=mingw32 --prefix=/mingw
Thread model: win32
gcc version 4.6.1 (GCC)

Command:
gfortran.exe -std=legacy -march=native -mfpmath=sse -m3dnow -mmmx -msse -msse2
-msse3  -O3   -Wall    -c D:\Jenda\cbp\SATLEED\LEEDSATL_SB\leedsatl_sb.f -o
obj\Release\leedsatl_sb.o

CPU: AMD Athlon x2, see
<http://www.cpu-world.com/CPUs/K8/AMD-Athlon%20X2%204850e%20-%20ADH4850IAA5DO%20(ADH4850DOBOX).html>

Important: The ICE is gone if I decrease the optimization level to -O2 or
exclude the machine specific options (from -march to -msse3).

The code and output are attached.

Copyright note: The code comes from
<http://www.ap.cityu.edu.hk/personal-website/Van-Hove_files/leed/leedpack.html>
and I am actually not allowed to distribute it.


             reply	other threads:[~2012-03-19 16:12 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-19 16:13 pepalogik at seznam dot cz [this message]
2012-03-19 16:17 ` [Bug fortran/52621] " pepalogik at seznam dot cz
2012-03-20  8:42 ` burnus at gcc dot gnu.org
2012-03-21 12:45 ` pepalogik at seznam dot cz
2012-03-21 13:22 ` dominiq at lps dot ens.fr
2012-03-21 13:33 ` [Bug middle-end/52621] ICE with -O3 -march=opteron in initialize_matrix_A, at tree-data-ref.c:1964 burnus at gcc dot gnu.org
2012-03-21 13:52 ` [Bug middle-end/52621] [4.6/4.7/4.8 Regression] " dominiq at lps dot ens.fr
2012-03-21 14:21 ` dominiq at lps dot ens.fr
2012-03-21 14:27 ` dominiq at lps dot ens.fr
2012-04-05 10:52 ` rguenth at gcc dot gnu.org
2012-04-05 11:27 ` rguenth at gcc dot gnu.org
2012-04-11 12:18 ` rguenth at gcc dot gnu.org
2012-04-11 14:05 ` rguenth at gcc dot gnu.org
2012-04-11 14:21 ` [Bug middle-end/52621] [4.6/4.7 " rguenth at gcc dot gnu.org
2012-04-13 13:00 ` rguenth at gcc dot gnu.org
2012-07-06  9:20 ` rguenth at gcc dot gnu.org
2012-07-06  9:27 ` [Bug middle-end/52621] [4.6 " rguenth at gcc dot gnu.org
2012-07-17 22:56 ` danglin at gcc dot gnu.org
2013-04-12 16:27 ` jakub at gcc dot gnu.org

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