[Bug debug/43166] [4.5 Regression] ICE in simplify_subreg on fortran code

[jakub at gcc dot gnu dot org]

------- Comment #2 from jakub at gcc dot gnu dot org  2010-02-25 10:50 -------
Subject: Bug 43166

Author: jakub
Date: Thu Feb 25 10:50:24 2010
New Revision: 157063

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=157063
Log:
        PR debug/43166
        * cfgexpand.c (expand_debug_expr) <case VAR_DECL>: If mode is
        BLKmode, assert op0 is a MEM and just adjust its mode.

        * trans-common.c (build_common_decl): Also update DECL_MODE,
        and DECL_SIZE when encountering a larger common block and call
        layout_decl.

        * gfortran.dg/debug/pr43166.f: New test.

Added:
    trunk/gcc/testsuite/gfortran.dg/debug/pr43166.f
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cfgexpand.c
    trunk/gcc/fortran/ChangeLog
    trunk/gcc/fortran/trans-common.c
    trunk/gcc/testsuite/ChangeLog


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43166