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Date: Wed, 03 Jun 2009 15:45:00 -0000
Subject: [Bug libfortran/40330]  New: [4.4 Regression] incorrect IO
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From: "jv244 at cam dot ac dot uk" <gcc-bugzilla@gcc.gnu.org>
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right now, 4.4 branch is broken for CP2K, there seems to be some error in
libfortran that causes incorrect writes. The diff in the restarts looks like:

56,58c56,58
<      &FORCEFIELD
<        PARMTYPE  CHM
<        PARM_FILE_NAME ../sample_pot/water.pot
---
>    FORCEFIELD,
>  ,PARMTYPE CHM
>  ,PARM_FILE_NAME../sample_pot/water.pot

so a leading & disappears, and whitespace is being replaced by ',' 

4.3.1 and 4.4.0 work fine, 4.4 branch is broken. However, using the 4.3.1
runtime with a 4.4 compiled binary is OK, so I guess it is libgfortran. I have
no testcase yet (other than running CP2K and inspect the restart), but will
delve into it.


-- 
           Summary: [4.4 Regression] incorrect IO
           Product: gcc
           Version: 4.4.1
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: libfortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jv244 at cam dot ac dot uk


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40330