https://gcc.gnu.org/bugzilla/show_bug.cgi?id=35361

Jeffrey A. Law <law at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
                 CC|                            |law at redhat dot com
         Resolution|---                         |FIXED

--- Comment #2 from Jeffrey A. Law <law at redhat dot com> ---
This was fixed a couple years ago:
Author: hubicka <hubicka@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Fri May 16 17:49:06 2014 +0000

        * varpool.c (dump_varpool_node): Dump write-only flag.
        * lto-cgraph.c (lto_output_varpool_node, input_varpool_node): Stream
        write-only flag.
        * tree-cfg.c (execute_fixup_cfg): Remove statements setting write-only
variables.


        * gcc.c-torture/execute/20101011-1.c: Update testcase.
        * gcc.dg/ira-shrinkwrap-prep-1.c: Update testcase.
        * gcc.dg/tree-ssa/writeonly.c: New testcase.
        * gcc.dg/tree-ssa/ssa-dse-6.c: Update testcase.
        * gcc.dg/tree-ssa/pr21559.c: Update testcase.
        * gcc.dg/debug/pr35154.c: Update testcase.
        * gcc.target/i386/vectorize1.c: Update testcase.
        * ipa.c (process_references): New function.
        (set_readonly_bit): New function.
        (set_writeonly_bit): New function.
        (clear_addressable_bit): New function.
        (ipa_discover_readonly_nonaddressable_var): Mark write only variables;
fix
        handling of aliases.
        * cgraph.h (struct varpool_node): Add writeonly flag.

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