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* [Bug fortran/39039]  New: segfault with  common block and "-O1 -ftree-vectorize -msse2"
@ 2009-01-30  4:49 billingd at gcc dot gnu dot org
  2009-01-30  9:56 ` [Bug target/39039] " ubizjak at gmail dot com
  0 siblings, 1 reply; 2+ messages in thread
From: billingd at gcc dot gnu dot org @ 2009-01-30  4:49 UTC (permalink / raw)
  To: gcc-bugs

The following program segfaults when compiled with "-O1 -ftree-vectorize
-msse2".  Compiler is gfortran trunk revision 143693 (4.4.0 20090127).

Also fails with higher levels of optimization but requires both
-ftree-vectorize and -msse2.


program common
   real (kind=8) b(5)
   common /com1/b
   b = 100
end

The case is reduced from gfortran.fortran-torture/execute/common.f90


-- 
           Summary: segfault with  common block and "-O1 -ftree-vectorize -
                    msse2"
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: billingd at gcc dot gnu dot org
 GCC build triplet: i686-pc-cygwin
  GCC host triplet: i686-pc-cygwin
GCC target triplet: i686-pc-cygwin


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39039


^ permalink raw reply	[flat|nested] 2+ messages in thread
* [Bug target/39039] segfault with  common block and "-O1 -ftree-vectorize -msse2"
  2009-01-30  4:49 [Bug fortran/39039] New: segfault with common block and "-O1 -ftree-vectorize -msse2" billingd at gcc dot gnu dot org
@ 2009-01-30  9:56 ` ubizjak at gmail dot com
  0 siblings, 0 replies; 2+ messages in thread
From: ubizjak at gmail dot com @ 2009-01-30  9:56 UTC (permalink / raw)
  To: gcc-bugs



------- Comment #1 from ubizjak at gmail dot com  2009-01-30 09:56 -------
You can workaround this PE/COFF problem with -fno-common.

*** This bug has been marked as a duplicate of 37216 ***


-- 

ubizjak at gmail dot com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39039


^ permalink raw reply	[flat|nested] 2+ messages in thread
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2009-01-30  4:49 [Bug fortran/39039] New: segfault with common block and "-O1 -ftree-vectorize -msse2" billingd at gcc dot gnu dot org
2009-01-30  9:56 ` [Bug target/39039] " ubizjak at gmail dot com

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