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.
