[Bug middle-end/20644] bogus uninitialized warning on unused variable

[manu at gcc dot gnu dot org]

------- Comment #10 from manu at gcc dot gnu dot org  2008-08-10 18:47 -------
Subject: Bug 20644

Author: manu
Date: Sun Aug 10 18:46:10 2008
New Revision: 138933

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=138933
Log:
2008-08-10  Manuel Lopez-Ibanez  <manu@gcc.gnu.org>

        PR middle-end/20644
        * tree-ssa.c (struct walk_data): Add new flag
        warn_possibly_uninitialized.
        (warn_uninitialized_var): Use it.
        (warn_uninitialized_vars): New.
        (execute_early_warn_uninitialized): Call it.
        (execute_late_warn_uninitialized): Likewise.
testsuite/
        * gcc.dg/uninit-pr20644-O0.c: New.
        * gcc.dg/uninit-pr20644.c: New.

Added:
    trunk/gcc/testsuite/gcc.dg/uninit-pr20644-O0.c
    trunk/gcc/testsuite/gcc.dg/uninit-pr20644.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa.c


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20644