[Bug fortran/52861] (missed optimisation) missed transformation to memset with -O3

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52861

--- Comment #6 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2012-06-07 14:33:56 UTC ---
Author: tkoenig
Date: Thu Jun  7 14:33:51 2012
New Revision: 188305

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188305
Log:
2012-06-07  Thomas König  <tkoenig@gcc.gnu.org>

    PR fortran/52861
    * frontend-passes.c (optimize_assignment):  Don't set the
    length of an empty string for deferred-length character
    variables.

2012-06-07  Thomas König  <tkoenig@gcc.gnu.org>

    PR fortran/52861
    * gfortran.dg/string_assign_2.f90:  New test case.



Added:
    trunk/gcc/testsuite/gfortran.dg/string_assign_2.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/frontend-passes.c
    trunk/gcc/testsuite/ChangeLog