[Bug fortran/50327] [4.7 Regression] Front-end optimization generates wrong code for BLAS's srotmg

[tkoenig at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50327

--- Comment #4 from Thomas Koenig <tkoenig at gcc dot gnu.org> 2011-09-11 20:48:29 UTC ---
Author: tkoenig
Date: Sun Sep 11 20:48:26 2011
New Revision: 178768

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=178768
Log:
2011-09-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/50327
    * frontend-passes.c (dummy_expr_callback):  New function.
    (convert_do_while):  New function.
    (optimize_namespace):  Call code walker to convert do while loops.

2011-09-11  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/50327
    * gfortran.dg/do_while_1.f90:  New test.


Added:
    trunk/gcc/testsuite/gfortran.dg/do_while_1.f90
Modified:
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/frontend-passes.c
    trunk/gcc/testsuite/ChangeLog