On 10/25/2017 11:54 PM, Michael Collison wrote:
> Ping. Original patch posted here:
>
> https://gcc.gnu.org/ml/gcc-patches/2017-10/msg01317.html
Is this still needed or was it addressed by the patch Jakub checked in here:
2017-11-01 Jakub Jelinek <ja...@redhat.com>
PR rtl-optimization/82778
PR rtl-optimization/82597
* compare-elim.c (struct comparison): Add in_a_setter field.
(find_comparison_dom_walker::before_dom_children): Remove killed
bitmap and df_simulate_find_defs call, instead walk the defs.
Compute last_setter and initialize in_a_setter. Merge definitions
with first initialization for a few variables.
(try_validate_parallel): Use insn_invalid_p instead of
recog_memoized. Return insn rather than just the pattern.
(try_merge_compare): Fix up comment. Don't uselessly test if
in_a is a REG_P. Use cmp->in_a_setter instead of walking UD
chains.
(execute_compare_elim_after_reload): Remove df_chain_add_problem
call.
